Fix Bug 600 and Bug 721: Adding support for multiple monitors w/ NEWT

- Support for all monitor devices and their available modes
  - X11: Use RandR 1.3 if available
  - Retrieve information
  - Changing a monitor device's mode

- Support for dedicated and spannig fullscreen
  - See <http://jogamp.org/files/screenshots/newt-mmonitor/html/>

- TODO:
  - X11 RandR does _not_ relayout the virtual screen size
    and neither the CRT's viewport.
    We may need to relayout them if they were covering a seamless region
    to achieve same experience!

  - OSX: No machine to attach a secondary CRT -> TEST!

- Tested Manually for Regressions
  - Linux ARMv6hf (Rasp-Pi/BCM, Panda/X11)
  - Android (Huawei, Kindle)

- Tested Manually and junit:
  - X11/Linux
    - NV, ATI-Catalyst w/ 2 CRTs
    - VBox w/ 4 CRTs

  - Win/Windows
    - NV, w/ 2 CRTs
    - VBox w/ 4 CRTs

  - X11/OpenIndiana, NV, 1 CRT

21 files changed, 2224 insertions, 927 deletions

diff --git a/src/newt/classes/jogamp/newt/MonitorDeviceImpl.java b/src/newt/classes/jogamp/newt/MonitorDeviceImpl.java
new file mode 100644
index 000000000..96daed54a
--- /dev/null
+++ b/src/newt/classes/jogamp/newt/MonitorDeviceImpl.java
@@ -0,0 +1,147 @@
+/**
+ * Copyright 2013 JogAmp Community. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are
+ * permitted provided that the following conditions are met:
+ * 
+ *    1. Redistributions of source code must retain the above copyright notice, this list of
+ *       conditions and the following disclaimer.
+ * 
+ *    2. Redistributions in binary form must reproduce the above copyright notice, this list
+ *       of conditions and the following disclaimer in the documentation and/or other materials
+ *       provided with the distribution.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY JogAmp Community ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JogAmp Community OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ * 
+ * The views and conclusions contained in the software and documentation are those of the
+ * authors and should not be interpreted as representing official policies, either expressed
+ * or implied, of JogAmp Community.
+ */
+ 
+package jogamp.newt;
+
+import javax.media.nativewindow.util.DimensionImmutable;
+import javax.media.nativewindow.util.Rectangle;
+
+import com.jogamp.common.util.ArrayHashSet;
+import com.jogamp.newt.MonitorDevice;
+import com.jogamp.newt.MonitorMode;
+import com.jogamp.newt.Screen;
+
+public class MonitorDeviceImpl extends MonitorDevice {
+
+    public MonitorDeviceImpl(ScreenImpl screen, int nativeId, DimensionImmutable sizeMM, Rectangle viewport, MonitorMode currentMode, ArrayHashSet<MonitorMode> supportedModes) {
+        super(screen, nativeId, sizeMM, viewport, currentMode, supportedModes);
+    }
+    
+    @Override
+    public final MonitorMode queryCurrentMode() {
+        final ScreenImpl screenImpl = (ScreenImpl)screen;
+        final ScreenMonitorState sms = screenImpl.getScreenMonitorStatus(true);
+        sms.lock();
+        try {
+            final MonitorMode mm0 = screenImpl.queryCurrentMonitorModeIntern(this);
+            if(null == mm0) {
+                throw new InternalError("getCurrentMonitorModeIntern() == null");
+            }
+            MonitorMode mmU = supportedModes.get(mm0); // unified instance
+            if( null == mmU ) {
+                // add new mode avoiding exception! 
+                mmU = sms.getMonitorModes().getOrAdd(mm0);
+                mmU = supportedModes.getOrAdd(mmU);
+                if( Screen.DEBUG ) {
+                    System.err.println("Adding new mode: "+mm0+" -> "+mmU);
+                }
+            }
+            // if mode has changed somehow, update it ..
+            if( getCurrentMode().hashCode() != mmU.hashCode() ) {
+                setCurrentModeValue(mmU);
+                sms.fireScreenModeChanged(this, mmU, true);
+            }
+            return mmU;
+        } finally {
+            sms.unlock();
+        }
+    }
+
+    @Override
+    public final boolean setCurrentMode(MonitorMode mode) {
+        if(Screen.DEBUG) {
+            System.err.println("Screen.setCurrentScreenMode.0: "+this+" -> "+mode);
+        }
+        final ScreenImpl screenImpl = (ScreenImpl)screen;
+        final ScreenMonitorState sms = screenImpl.getScreenMonitorStatus(true);
+        sms.lock();
+        try {
+            final MonitorMode mmC = queryCurrentMode();
+            final MonitorMode mmU = supportedModes.get(mode); // unify via value hash
+            if( null == mmU ) {
+                throw new IllegalArgumentException("Given mode not in set of modes. Current mode "+mode+", "+this);
+            }
+            if( mmU.equals( mmC ) ) {
+                if(Screen.DEBUG) {
+                    System.err.println("Screen.setCurrentScreenMode: 0.0 is-current (skip) "+mmU+" == "+mmC);
+                }            
+                return true;
+            }
+            final long tStart;
+            if(Screen.DEBUG) {
+                tStart = System.nanoTime();                
+            } else {
+                tStart = 0;
+            }
+            
+            sms.fireScreenModeChangeNotify(this, mmU);
+            if(Screen.DEBUG) {
+                System.err.println("Screen.setCurrentScreenMode ("+(System.nanoTime()-tStart)/1e6+"ms): fireScreenModeChangeNotify() "+mmU);
+            }
+
+            boolean success = screenImpl.setCurrentMonitorModeImpl(this, mmU);
+            if(success) {
+                if(Screen.DEBUG) {
+                    System.err.println("Screen.setCurrentScreenMode ("+(System.nanoTime()-tStart)/1e6+"ms): setCurrentScreenModeImpl() "+mmU+", success(1): "+success);
+                }
+            } else {
+                // 2nd attempt validate!
+                final MonitorMode queriedCurrent = queryCurrentMode(); // may fireScreenModeChanged(..) if successful and differs!
+                success = queriedCurrent.hashCode() == mmU.hashCode() ;
+                if(Screen.DEBUG) {
+                    System.err.println("Screen.setCurrentScreenMode.2: queried "+queriedCurrent);
+                    System.err.println("Screen.setCurrentScreenMode ("+(System.nanoTime()-tStart)/1e6+"ms): setCurrentScreenModeImpl() "+mmU+", success(2): "+success);
+                }
+            }
+            if( success ) {
+                setCurrentModeValue(mmU);
+                modeChanged = !isOriginalMode();
+            }
+            sms.fireScreenModeChanged(this, mmU, success);
+            if(Screen.DEBUG) {
+                System.err.println("Screen.setCurrentScreenMode ("+(System.nanoTime()-tStart)/1e6+"ms): X.X "+this+", success: "+success);
+            }
+            return success;
+        } finally {
+            sms.unlock();
+        }
+    }
+
+    private final void setCurrentModeValue(MonitorMode currentMode) {
+        this.currentMode = currentMode;
+    }
+    
+    /* pp */ final void setViewportValue(Rectangle viewport) {
+        this.viewport = viewport;
+    }
+    
+    /* pp */ ArrayHashSet<MonitorMode> getSupportedModesImpl() {
+        return supportedModes;
+    }
+    
+}
\ No newline at end of file
diff --git a/src/newt/classes/jogamp/newt/MonitorModeProps.java b/src/newt/classes/jogamp/newt/MonitorModeProps.java
new file mode 100644
index 000000000..820807e15
--- /dev/null
+++ b/src/newt/classes/jogamp/newt/MonitorModeProps.java
@@ -0,0 +1,355 @@
+/**
+ * Copyright 2010 JogAmp Community. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are
+ * permitted provided that the following conditions are met:
+ *
+ *    1. Redistributions of source code must retain the above copyright notice, this list of
+ *       conditions and the following disclaimer.
+ *
+ *    2. Redistributions in binary form must reproduce the above copyright notice, this list
+ *       of conditions and the following disclaimer in the documentation and/or other materials
+ *       provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY JogAmp Community ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JogAmp Community OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * The views and conclusions contained in the software and documentation are those of the
+ * authors and should not be interpreted as representing official policies, either expressed
+ * or implied, of JogAmp Community.
+ */
+
+package jogamp.newt;
+
+import com.jogamp.common.util.ArrayHashSet;
+import com.jogamp.newt.MonitorDevice;
+import com.jogamp.newt.MonitorMode;
+
+import java.util.List;
+import javax.media.nativewindow.util.Dimension;
+import javax.media.nativewindow.util.DimensionImmutable;
+import javax.media.nativewindow.util.Rectangle;
+import javax.media.nativewindow.util.SurfaceSize;
+
+import jogamp.newt.MonitorDeviceImpl;
+import jogamp.newt.ScreenImpl;
+
+/**
+ * Encodes and decodes {@link MonitorMode} and {@link MonitorDevice} properties.
+ */
+public class MonitorModeProps {
+    /** WARNING: must be synchronized with ScreenMode.h, native implementation
+     * 2: width, height
+     */
+    public static final int NUM_RESOLUTION_PROPERTIES   = 2;
+
+    /** WARNING: must be synchronized with ScreenMode.h, native implementation
+     * 1: bpp
+     */
+    public static final int NUM_SURFACE_SIZE_PROPERTIES = 1;
+    
+    /** WARNING: must be synchronized with ScreenMode.h, native implementation
+     * 2: refresh-rate (Hz*100), flags
+     */
+    public static final int NUM_SIZEANDRATE_PROPERTIES = 2;
+    
+    /** WARNING: must be synchronized with ScreenMode.h, native implementation
+     * 2: id, rotation
+     */
+    public static final int NUM_MONITOR_MODE_PROPERTIES  = 2;
+
+    /** WARNING: must be synchronized with ScreenMode.h, native implementation
+     * count + all the above
+     */
+    public static final int NUM_MONITOR_MODE_PROPERTIES_ALL = 8;
+    
+    public static final int IDX_MONITOR_MODE_BPP =   1 // count
+                                                   + MonitorModeProps.NUM_RESOLUTION_PROPERTIES
+                                                   ;
+    public static final int IDX_MONITOR_MODE_ROT =   1 // count
+                                                   + MonitorModeProps.NUM_RESOLUTION_PROPERTIES
+                                                   + MonitorModeProps.NUM_SURFACE_SIZE_PROPERTIES
+                                                   + MonitorModeProps.NUM_SIZEANDRATE_PROPERTIES
+                                                   + 1 // id of MonitorModeProps.NUM_MONITOR_MODE_PROPERTIES
+                                                   ;
+    
+    /** WARNING: must be synchronized with ScreenMode.h, native implementation
+     * 10: count + id, ScreenSizeMM[width, height], rotated Viewport[x, y, width, height], currentMonitorModeId, rotation, supportedModeId+
+     */
+    public static final int MIN_MONITOR_DEVICE_PROPERTIES = 11;
+
+    public static final int IDX_MONITOR_DEVICE_VIEWPORT =   1 // count
+                                                          + 1 // native mode
+                                                          + MonitorModeProps.NUM_RESOLUTION_PROPERTIES // sizeMM
+                                                          ;
+    
+    public static class Cache {
+        public final ArrayHashSet<DimensionImmutable>       resolutions  = new ArrayHashSet<DimensionImmutable>();
+        public final ArrayHashSet<SurfaceSize>              surfaceSizes = new ArrayHashSet<SurfaceSize>();
+        public final ArrayHashSet<MonitorMode.SizeAndRRate> sizeAndRates = new ArrayHashSet<MonitorMode.SizeAndRRate>(); 
+        public final ArrayHashSet<MonitorMode>              monitorModes = new ArrayHashSet<MonitorMode>();
+        public final ArrayHashSet<MonitorDevice>            monitorDevices = new ArrayHashSet<MonitorDevice>();
+    }
+    
+    /** WARNING: must be synchronized with ScreenMode.h, native implementation */
+    private static DimensionImmutable streamInResolution(int[] resolutionProperties, int offset) {
+        Dimension resolution = new Dimension(resolutionProperties[offset++], resolutionProperties[offset++]);
+        return resolution;
+    }
+
+    /** WARNING: must be synchronized with ScreenMode.h, native implementation */
+    private static SurfaceSize streamInSurfaceSize(DimensionImmutable resolution, int[] sizeProperties, int offset) {
+        SurfaceSize surfaceSize = new SurfaceSize(resolution, sizeProperties[offset++]);
+        return surfaceSize;
+    }
+
+    /** WARNING: must be synchronized with ScreenMode.h, native implementation */
+    private static MonitorMode.SizeAndRRate streamInSizeAndRRate(SurfaceSize surfaceSize, int[] sizeAndRRateProperties, int offset) {
+        final float refreshRate = sizeAndRRateProperties[offset++]/100.0f;
+        final int flags = sizeAndRRateProperties[offset++];
+        return new MonitorMode.SizeAndRRate(surfaceSize, refreshRate, flags);
+    }
+    
+    /** WARNING: must be synchronized with ScreenMode.h, native implementation */
+    private static MonitorMode streamInMonitorMode0(MonitorMode.SizeAndRRate sizeAndRate, int[] modeProperties, int offset) {
+        final int id = modeProperties[offset++];
+        final int rotation = modeProperties[offset++];
+        return new MonitorMode(id, sizeAndRate, rotation);
+    }
+
+    /**
+     *  WARNING: must be synchronized with ScreenMode.h, native implementation
+     *
+     * @param mode_idx if not null and cache is given, returns the index of resulting {@link MonitorMode} within {@link Cache#monitorModes}.
+     * @param cache optional hash arrays of unique {@link MonitorMode} components and {@link MonitorDevice}s, allowing to avoid duplicates
+     * @param modeProperties the input data
+     * @param offset the offset to the input data
+     * @return {@link MonitorMode} of the identical (old or new) element in {@link Cache#monitorModes},
+     *         matching the input <code>modeProperties</code>, or null if input could not be processed.
+     */
+    public static MonitorMode streamInMonitorMode(int[] mode_idx, Cache cache,
+                                                  int[] modeProperties, int offset) {
+        final int count = modeProperties[offset];
+        if(NUM_MONITOR_MODE_PROPERTIES_ALL != count) {
+            throw new RuntimeException("property count should be "+NUM_MONITOR_MODE_PROPERTIES_ALL+", but is "+count+", len "+(modeProperties.length-offset));
+        }
+        if(NUM_MONITOR_MODE_PROPERTIES_ALL > modeProperties.length-offset) {
+            throw new RuntimeException("properties array too short, should be >= "+NUM_MONITOR_MODE_PROPERTIES_ALL+", is "+(modeProperties.length-offset));
+        }
+        offset++;
+        DimensionImmutable resolution = MonitorModeProps.streamInResolution(modeProperties, offset);
+        offset += MonitorModeProps.NUM_RESOLUTION_PROPERTIES;
+        if(null!=cache) {
+            resolution = cache.resolutions.getOrAdd(resolution);
+        }
+
+        SurfaceSize surfaceSize = MonitorModeProps.streamInSurfaceSize(resolution, modeProperties, offset);
+        offset += MonitorModeProps.NUM_SURFACE_SIZE_PROPERTIES;
+        if(null!=cache) {
+            surfaceSize = cache.surfaceSizes.getOrAdd(surfaceSize);
+        }
+
+        MonitorMode.SizeAndRRate sizeAndRate = MonitorModeProps.streamInSizeAndRRate(surfaceSize, modeProperties, offset);
+        offset += MonitorModeProps.NUM_SIZEANDRATE_PROPERTIES;
+        if(null!=cache) {
+            sizeAndRate = cache.sizeAndRates.getOrAdd(sizeAndRate);
+        }
+        
+        MonitorMode monitorMode = MonitorModeProps.streamInMonitorMode0(sizeAndRate, modeProperties, offset);
+        if(null!=cache) {
+            monitorMode = cache.monitorModes.getOrAdd(monitorMode);
+        }
+        if( null != mode_idx && null!=cache) {
+            int _modeIdx  = cache.monitorModes.indexOf(monitorMode);
+            if( 0 > _modeIdx ) {
+                throw new InternalError("Invalid index of current unified mode "+monitorMode);
+            }
+            mode_idx[0] = _modeIdx;
+        }
+        return monitorMode;
+    }
+
+    /** WARNING: must be synchronized with ScreenMode.h, native implementation */
+    public static int[] streamOutMonitorMode (MonitorMode monitorMode) {
+        int[] data = new int[NUM_MONITOR_MODE_PROPERTIES_ALL];
+        int idx=0;
+        data[idx++] = NUM_MONITOR_MODE_PROPERTIES_ALL;
+        data[idx++] = monitorMode.getSurfaceSize().getResolution().getWidth();
+        data[idx++] = monitorMode.getSurfaceSize().getResolution().getHeight();
+        data[idx++] = monitorMode.getSurfaceSize().getBitsPerPixel();
+        data[idx++] = (int)(monitorMode.getRefreshRate()*100.0f); // Hz*100
+        data[idx++] = monitorMode.getFlags();
+        data[idx++] = monitorMode.getId();
+        data[idx++] = monitorMode.getRotation();
+        if(NUM_MONITOR_MODE_PROPERTIES_ALL != idx) {
+            throw new InternalError("wrong number of attributes: got "+idx+" != should "+NUM_MONITOR_MODE_PROPERTIES_ALL);
+        }
+        return data;
+    }
+    
+    /** 
+     * WARNING: must be synchronized with ScreenMode.h, native implementation
+     * <p>
+     * Note: This variant only works for impl. w/ a unique mode key pair <i>modeId, rotation</i>.
+     * </p> 
+     * @param mode_idx if not null, returns the index of resulting {@link MonitorDevice} within {@link Cache#monitorDevices}.
+     * @param cache hash arrays of unique {@link MonitorMode} components and {@link MonitorDevice}s, allowing to avoid duplicates
+     * @param modeProperties the input data
+     * @param offset the offset to the input data
+     * @return {@link MonitorDevice} of the identical (old or new) element in {@link Cache#monitorDevices},
+     *         matching the input <code>modeProperties</code>, or null if input could not be processed.
+     */
+    public static MonitorDevice streamInMonitorDevice(int[] monitor_idx, Cache cache, ScreenImpl screen, int[] monitorProperties, int offset) {
+        // min 11: count, id, ScreenSizeMM[width, height], Viewport[x, y, width, height], currentMonitorModeId, rotation, supportedModeId+
+        final int count = monitorProperties[offset];
+        if(MIN_MONITOR_DEVICE_PROPERTIES > count) {
+            throw new RuntimeException("property count should be >= "+MIN_MONITOR_DEVICE_PROPERTIES+", but is "+count+", len "+(monitorProperties.length-offset));
+        }
+        if(MIN_MONITOR_DEVICE_PROPERTIES > monitorProperties.length-offset) {
+            throw new RuntimeException("properties array too short (min), should be >= "+MIN_MONITOR_DEVICE_PROPERTIES+", is "+(monitorProperties.length-offset));
+        }
+        if(count > monitorProperties.length-offset) {
+            throw new RuntimeException("properties array too short (count), should be >= "+count+", is "+(monitorProperties.length-offset));
+        }
+        final int limit = offset + count; 
+        offset++;
+        final List<MonitorMode> allMonitorModes = cache.monitorModes.getData();
+        final int id = monitorProperties[offset++];
+        final DimensionImmutable sizeMM = streamInResolution(monitorProperties, offset); offset+=NUM_RESOLUTION_PROPERTIES;
+        final Rectangle viewport = new Rectangle(monitorProperties[offset++], monitorProperties[offset++], monitorProperties[offset++], monitorProperties[offset++]);
+        final MonitorMode currentMode;
+        {
+            final int modeId = monitorProperties[offset++];
+            final int rotation = monitorProperties[offset++];
+            currentMode = getByNativeIdAndRotation(allMonitorModes, modeId, rotation);
+        }
+        final ArrayHashSet<MonitorMode> supportedModes = new ArrayHashSet<MonitorMode>();
+        while( offset < limit ) {
+            final int modeId = monitorProperties[offset++];
+            for (int i=0; i<allMonitorModes.size(); i++) {
+                final MonitorMode mode = allMonitorModes.get(i);
+                if( mode.getId() == modeId ) {
+                    supportedModes.add(mode);
+                }
+            }
+        }
+        MonitorDevice monitorDevice = new MonitorDeviceImpl(screen, id, sizeMM, viewport, currentMode, supportedModes);
+        if(null!=cache) {
+            monitorDevice = cache.monitorDevices.getOrAdd(monitorDevice);
+        }
+        if( null != monitor_idx ) {
+            int _monitorIdx  = cache.monitorDevices.indexOf(monitorDevice);
+            if( 0 > _monitorIdx ) {
+                throw new InternalError("Invalid index of current unified mode "+monitorDevice);
+            }
+            monitor_idx[0] = _monitorIdx;
+        }
+        return monitorDevice;
+    }    
+    private static MonitorMode getByNativeIdAndRotation(List<MonitorMode> monitorModes, int modeId, int rotation) {
+        if( null!=monitorModes && monitorModes.size()>0 ) {
+            for (int i=0; i<monitorModes.size(); i++) {
+                final MonitorMode mode = monitorModes.get(i);
+                if( mode.getId() == modeId && mode.getRotation() == rotation ) {
+                    return mode;
+                }
+            }
+        }
+        return null;
+    }
+    
+    /** 
+     * WARNING: must be synchronized with ScreenMode.h, native implementation
+     * <p>
+     * This variant expects <code>count</code> to be <code>{@link MIN_MONITOR_DEVICE_PROPERTIES} - 1 - {@link NUM_MONITOR_MODE_PROPERTIES}</code>,
+     * due to lack of supported mode and current mode. 
+     * </p>
+     *
+     * @param mode_idx if not null, returns the index of resulting {@link MonitorDevice} within {@link Cache#monitorDevices}.
+     * @param cache hash arrays of unique {@link MonitorMode} components and {@link MonitorDevice}s, allowing to avoid duplicates
+     * @param supportedModes pre-assembled list of supported {@link MonitorMode}s from cache.
+     * @param currentMode pre-fetched current {@link MonitorMode}s from cache.
+     * @param modeProperties the input data minus supported modes!
+     * @param offset the offset to the input data
+     * @return {@link MonitorDevice} of the identical (old or new) element in {@link Cache#monitorDevices},
+     *         matching the input <code>modeProperties</code>, or null if input could not be processed.
+     */
+    public static MonitorDevice streamInMonitorDevice(int[] monitor_idx, Cache cache, ScreenImpl screen, ArrayHashSet<MonitorMode> supportedModes, MonitorMode currentMode, int[] monitorProperties, int offset) {
+        // min 11: count, id, ScreenSizeMM[width, height], Viewport[x, y, width, height], currentMonitorModeId, rotation, supportedModeId+
+        final int count = monitorProperties[offset];
+        if(MIN_MONITOR_DEVICE_PROPERTIES - 1 - NUM_MONITOR_MODE_PROPERTIES != count) {
+            throw new RuntimeException("property count should be == "+(MIN_MONITOR_DEVICE_PROPERTIES-1-NUM_MONITOR_MODE_PROPERTIES)+", but is "+count+", len "+(monitorProperties.length-offset));
+        }
+        if(MIN_MONITOR_DEVICE_PROPERTIES - 1 - NUM_MONITOR_MODE_PROPERTIES > monitorProperties.length-offset) {
+            throw new RuntimeException("properties array too short (min), should be >= "+(MIN_MONITOR_DEVICE_PROPERTIES-1-NUM_MONITOR_MODE_PROPERTIES)+", is "+(monitorProperties.length-offset));
+        }
+        if(count > monitorProperties.length-offset) {
+            throw new RuntimeException("properties array too short (count), should be >= "+count+", is "+(monitorProperties.length-offset));
+        }
+        offset++;
+        final int id = monitorProperties[offset++];
+        final DimensionImmutable sizeMM = streamInResolution(monitorProperties, offset); offset+=NUM_RESOLUTION_PROPERTIES;
+        final Rectangle viewport = new Rectangle(monitorProperties[offset++], monitorProperties[offset++], monitorProperties[offset++], monitorProperties[offset++]);
+        MonitorDevice monitorDevice = new MonitorDeviceImpl(screen, id, sizeMM, viewport, currentMode, supportedModes);
+        if(null!=cache) {
+            monitorDevice = cache.monitorDevices.getOrAdd(monitorDevice);
+        }
+        if( null != monitor_idx ) {
+            int _monitorIdx  = cache.monitorDevices.indexOf(monitorDevice);
+            if( 0 > _monitorIdx ) {
+                throw new InternalError("Invalid index of current unified mode "+monitorDevice);
+            }
+            monitor_idx[0] = _monitorIdx;
+        }
+        return monitorDevice;
+    }
+    
+    /** WARNING: must be synchronized with ScreenMode.h, native implementation */
+    public static int[] streamOutMonitorDevice (MonitorDevice monitorDevice) {
+        // min 11: count, id, ScreenSizeMM[width, height], Viewport[x, y, width, height], currentMonitorModeId, rotation, supportedModeId+
+        int supportedModeCount = monitorDevice.getSupportedModes().size();
+        if( 0 == supportedModeCount ) {
+            throw new RuntimeException("no supported modes: "+monitorDevice);
+        }
+        int[] data = new int[MIN_MONITOR_DEVICE_PROPERTIES + supportedModeCount - 1];
+        int idx=0;
+        data[idx++] = data.length;
+        data[idx++] = monitorDevice.getId();
+        data[idx++] = monitorDevice.getSizeMM().getWidth();
+        data[idx++] = monitorDevice.getSizeMM().getHeight();
+        data[idx++] = monitorDevice.getViewport().getX();
+        data[idx++] = monitorDevice.getViewport().getY();
+        data[idx++] = monitorDevice.getViewport().getWidth();
+        data[idx++] = monitorDevice.getViewport().getHeight();
+        data[idx++] = monitorDevice.getCurrentMode().getId();
+        data[idx++] = monitorDevice.getCurrentMode().getRotation();
+        final List<MonitorMode> supportedModes = monitorDevice.getSupportedModes();
+        for(int i=0; i<supportedModes.size(); i++) {
+            data[idx++] = supportedModes.get(i).getId();
+        }
+        if(data.length != idx) {
+            throw new InternalError("wrong number of attributes: got "+idx+" != should "+data.length);
+        }
+        return data;
+    }
+    
+    public final void swapRotatePair(int rotation, int[] pairs, int offset, int numPairs) {
+        if( MonitorMode.ROTATE_0 == rotation || MonitorMode.ROTATE_180 == rotation ) {
+            // nop
+            return;
+        }
+        for(int i=0; i<numPairs; i++, offset+=2) {
+            final int tmp = pairs[offset];
+            pairs[offset] = pairs[offset+1];  
+            pairs[offset+1] = tmp;
+        }
+    }    
+    
+}
diff --git a/src/newt/classes/jogamp/newt/OffscreenWindow.java b/src/newt/classes/jogamp/newt/OffscreenWindow.java
index c6c1814f6..911d371d5 100644
--- a/src/newt/classes/jogamp/newt/OffscreenWindow.java
+++ b/src/newt/classes/jogamp/newt/OffscreenWindow.java
@@ -34,6 +34,8 @@
 
 package jogamp.newt;
 
+import java.util.List;
+
 import javax.media.nativewindow.AbstractGraphicsConfiguration;
 import javax.media.nativewindow.AbstractGraphicsScreen;
 import javax.media.nativewindow.GraphicsConfigurationFactory;
@@ -43,6 +45,8 @@ import javax.media.nativewindow.VisualIDHolder;
 import javax.media.nativewindow.util.Insets;
 import javax.media.nativewindow.util.Point;
 
+import com.jogamp.newt.MonitorDevice;
+
 public class OffscreenWindow extends WindowImpl implements MutableSurface {
 
     long surfaceHandle;
@@ -100,10 +104,15 @@ public class OffscreenWindow extends WindowImpl implements MutableSurface {
     
     @Override
     public boolean setFullscreen(boolean fullscreen) {
-        // nop
-        return false;
+        return false; // nop
     }
 
+    @Override
+    public boolean setFullscreen(List<MonitorDevice> monitors) {
+        return false; // nop
+    }
+
+    
     protected boolean reconfigureWindowImpl(int x, int y, int width, int height, int flags) {
         sizeChanged(false, width, height, false);
         if( 0 != ( FLAG_CHANGE_VISIBILITY & flags) ) {
diff --git a/src/newt/classes/jogamp/newt/ScreenImpl.java b/src/newt/classes/jogamp/newt/ScreenImpl.java
index 1282e5dc5..4d20fdb83 100644
--- a/src/newt/classes/jogamp/newt/ScreenImpl.java
+++ b/src/newt/classes/jogamp/newt/ScreenImpl.java
@@ -43,22 +43,19 @@ import java.util.List;
 import javax.media.nativewindow.AbstractGraphicsScreen;
 import javax.media.nativewindow.NativeWindowException;
 import javax.media.nativewindow.util.Dimension;
-import javax.media.nativewindow.util.DimensionImmutable;
-import javax.media.nativewindow.util.Point;
-import javax.media.nativewindow.util.SurfaceSize;
-
+import javax.media.nativewindow.util.Rectangle;
+import javax.media.nativewindow.util.RectangleImmutable;
 
 import com.jogamp.common.util.ArrayHashSet;
-import com.jogamp.common.util.IntIntHashMap;
 import com.jogamp.newt.Display;
+import com.jogamp.newt.MonitorDevice;
+import com.jogamp.newt.MonitorMode;
 import com.jogamp.newt.NewtFactory;
 import com.jogamp.newt.Screen;
-import com.jogamp.newt.ScreenMode;
-import com.jogamp.newt.event.ScreenModeListener;
-import com.jogamp.newt.util.MonitorMode;
-import com.jogamp.newt.util.ScreenModeUtil;
+import com.jogamp.newt.event.MonitorEvent;
+import com.jogamp.newt.event.MonitorModeListener;
 
-public abstract class ScreenImpl extends Screen implements ScreenModeListener {
+public abstract class ScreenImpl extends Screen implements MonitorModeListener {
     protected static final boolean DEBUG_TEST_SCREENMODE_DISABLED = Debug.isPropertyDefined("newt.test.Screen.disableScreenMode", true);
 
     public static final int default_sm_bpp = 32;
@@ -73,11 +70,11 @@ public abstract class ScreenImpl extends Screen implements ScreenModeListener {
     protected int hashCode;
     protected AbstractGraphicsScreen aScreen;
     protected int refCount; // number of Screen references by Window
-    protected Point vOrigin = new Point(0, 0); // virtual top-left origin
-    protected Dimension vSize = new Dimension(0, 0); // virtual rotated screen size
+    protected Rectangle vOriginSize = new Rectangle(0, 0, 0, 0); // virtual rotated screen origin and size
     protected static Dimension usrSize = null; // property values: newt.ws.swidth and newt.ws.sheight
     protected static volatile boolean usrSizeQueried = false;
-    private ArrayList<ScreenModeListener> referencedScreenModeListener = new ArrayList<ScreenModeListener>();
+    private ArrayList<MonitorModeListener> referencedScreenModeListener = new ArrayList<MonitorModeListener>();
+    
     private long tCreated; // creationTime
 
     static {
@@ -160,10 +157,12 @@ public abstract class ScreenImpl extends Screen implements ScreenModeListener {
         return true;
     }
 
+    @Override
     public int hashCode() {
         return hashCode;
     }
 
+    @Override
     public synchronized final void createNative()
             throws NativeWindowException
     {        
@@ -182,8 +181,7 @@ public abstract class ScreenImpl extends Screen implements ScreenModeListener {
                 throw new NativeWindowException("Screen.createNative() failed to instanciate an AbstractGraphicsScreen");
             }
             
-            initScreenModeStatus();
-            updateVirtualScreenOriginAndSize();            
+            initScreenMonitorState();
             if(DEBUG) {
                 System.err.println("Screen.createNative() END ("+DisplayImpl.getThreadName()+", "+this+"), total "+ (System.nanoTime()-tCreated)/1e6 +"ms");
             }
@@ -191,10 +189,11 @@ public abstract class ScreenImpl extends Screen implements ScreenModeListener {
                 screensActive++;
             }
         }
-        ScreenModeStatus sms = ScreenModeStatus.getScreenModeStatus(this.getFQName());
+        ScreenMonitorState sms = ScreenMonitorState.getScreenMonitorState(this.getFQName());
         sms.addListener(this);
     }
 
+    @Override
     public synchronized final void destroy() {
         releaseScreenModeStatus();
 
@@ -213,6 +212,7 @@ public abstract class ScreenImpl extends Screen implements ScreenModeListener {
         display.removeReference();
     }
 
+    @Override
     public synchronized final int addReference() throws NativeWindowException {
         if(DEBUG) {
             System.err.println("Screen.addReference() ("+DisplayImpl.getThreadName()+"): "+refCount+" -> "+(refCount+1));
@@ -227,6 +227,7 @@ public abstract class ScreenImpl extends Screen implements ScreenModeListener {
         return ++refCount;
     }
 
+    @Override
     public synchronized final int removeReference() {
         if(DEBUG) {
             System.err.println("Screen.removeReference() ("+DisplayImpl.getThreadName()+"): "+refCount+" -> "+(refCount-1));
@@ -240,6 +241,7 @@ public abstract class ScreenImpl extends Screen implements ScreenModeListener {
         return refCount;
     }
 
+    @Override
     public synchronized final int getReferenceCount() {
         return refCount;
     }
@@ -259,14 +261,20 @@ public abstract class ScreenImpl extends Screen implements ScreenModeListener {
     /**
      * Stores the virtual origin and virtual <b>rotated</b> screen size.
      * <p>
-     * This method is called after the ScreenMode has been set, 
+     * This method is called after the ScreenMode has been set or changed, 
      * hence you may utilize it.
-     * </p> 
-     * @param virtualOrigin the store for the virtual origin
-     * @param virtualSize the store for the virtual rotated size
+     * </p>
+     * <p>
+     * Default implementation uses the union of all monitor's viewport,
+     * calculated via {@link #unionOfMonitorViewportSize()}. 
+     * </p>
+     * @param vOriginSize storage for result
      */
-    protected abstract void getVirtualScreenOriginAndSize(Point virtualOrigin, Dimension virtualSize); 
+    protected void calcVirtualScreenOriginAndSize(final Rectangle vOriginSize) { 
+        unionOfMonitorViewportSize(vOriginSize);
+    }
     
+    @Override
     public final String getFQName() {
         return fqname;
     }
@@ -275,258 +283,227 @@ public abstract class ScreenImpl extends Screen implements ScreenModeListener {
      * Updates the <b>rotated</b> virtual ScreenSize using the native impl.
      */
     protected void updateVirtualScreenOriginAndSize() {
-        getVirtualScreenOriginAndSize(vOrigin, vSize);
-        if(DEBUG) {
-            System.err.println("Detected virtual screen origin "+vOrigin+", size "+vSize);
+        if(null != usrSize ) {
+            vOriginSize.setX(0);
+            vOriginSize.setY(0);
+            vOriginSize.setWidth(usrSize.getWidth());
+            vOriginSize.setHeight(usrSize.getHeight());
+            if(DEBUG) {
+                System.err.println("User virtual screen viewport "+vOriginSize);
+            }
+        } else {
+            calcVirtualScreenOriginAndSize(vOriginSize);
+            if(DEBUG) {
+                System.err.println("Detected virtual screen viewport "+vOriginSize);
+            }
         }
     }
 
+    @Override
     public final Display getDisplay() {
         return display;
     }
 
+    @Override
     public final int getIndex() {
         return screen_idx;
     }
 
+    @Override
     public final AbstractGraphicsScreen getGraphicsScreen() {
         return aScreen;
     }
 
+    @Override
     public synchronized final boolean isNativeValid() {
         return null != aScreen;
     }
 
-    public int getX() { return vOrigin.getX(); }
-    public int getY() { return vOrigin.getY(); }
-    
-    public final int getWidth() {
-        return (null != usrSize) ? usrSize.getWidth() : vSize.getWidth();
-    }
-
-    public final int getHeight() {
-        return (null != usrSize) ? usrSize.getHeight() : vSize.getHeight();
-    }
+    @Override
+    public final int getX() { return vOriginSize.getX(); }
+    @Override
+    public final int getY() { return vOriginSize.getY(); }
+    @Override
+    public final int getWidth() { return vOriginSize.getWidth(); }
+    @Override
+    public final int getHeight() { return vOriginSize.getHeight(); }
+    @Override
+    public final RectangleImmutable getViewport() { return vOriginSize; }
 
     @Override
     public String toString() {
-        return "NEWT-Screen["+getFQName()+", idx "+screen_idx+", refCount "+refCount+", "+getWidth()+"x"+getHeight()+", "+aScreen+", "+display+"]";
+        return "NEWT-Screen["+getFQName()+", idx "+screen_idx+", refCount "+refCount+", vsize "+vOriginSize+", "+aScreen+", "+display+
+                            ", monitors: "+getMonitorDevices()+"]";
     }
 
-    public final List<ScreenMode> getScreenModes() {
-        ArrayHashSet<ScreenMode> screenModes = getScreenModesOrig();
-        if(null != screenModes && 0 < screenModes.size()) {
-            return screenModes.toArrayList();
-        }
-        return null;
+    //
+    // MonitorDevice and MonitorMode 
+    //
+    
+    /**
+     * To be implemented by the native specification.<br>
+     * Is called within a thread safe environment.<br>
+     * Is called only to collect the {@link MonitorMode}s and {@link MonitorDevice}s, usually at startup setting up modes.<br>
+     * <br>
+     * <b>WARNING</b>: must be synchronized with 
+     * <ul>
+     *   <li>{@link MonitorModeProps#NUM_SCREEN_MODE_PROPERTIES} and </li>
+     *   <li>{@link MonitorModeProps#MIN_MONITOR_DEVICE_PROPERTIES}</li>
+     * </ul>, i.e.
+     * <ul>
+     *   <li>{@link MonitorModeProps#streamInMonitorDevice(int[], jogamp.newt.MonitorModeProps.Cache, ScreenImpl, int[], int)}</li>
+     *   <li>{@link MonitorModeProps#streamInMonitorDevice(int[], jogamp.newt.MonitorModeProps.Cache, ScreenImpl, ArrayHashSet, int[], int)}</li>
+     *   <li>{@link MonitorModeProps#streamInMonitorMode(int[], jogamp.newt.MonitorModeProps.Cache, int[], int)}</li>
+     * </ul>
+     * @param cache memory pool caching the result
+     */
+    protected abstract void collectNativeMonitorModesAndDevicesImpl(MonitorModeProps.Cache cache);
+    
+    protected Rectangle getNativeMonitorDeviceViewportImpl(MonitorDevice monitor) { return null; }
+    
+    /**
+     * To be implemented by the native specification.<br>
+     * Is called within a thread safe environment.<br>
+     * <p>
+     * Implementation shall not unify the result w/ monitor's supported modes or a locally 
+     * saved {@link MonitorModeProps.Cache}, since caller will perform such tasks.
+     * </p>
+     */
+    protected abstract MonitorMode queryCurrentMonitorModeImpl(MonitorDevice monitor);
+    
+    /**
+     * To be implemented by the native specification.<br>
+     * Is called within a thread safe environment.<br>
+     */
+    protected abstract boolean setCurrentMonitorModeImpl(MonitorDevice monitor, MonitorMode mode);
+
+    @Override
+    public final List<MonitorMode> getMonitorModes() {
+        final ScreenMonitorState sms = getScreenMonitorStatus(false);
+        return null != sms ? sms.getMonitorModes().getData() : null; 
+    }
+    
+    @Override
+    public final List<MonitorDevice> getMonitorDevices() {
+        final ScreenMonitorState sms = getScreenMonitorStatus(false);
+        return null != sms ? sms.getMonitorDevices().getData() : null; 
     }
 
-    private final ScreenModeStatus getScreenModeStatus(boolean throwException) {
+    final ScreenMonitorState getScreenMonitorStatus(boolean throwException) {
         final String key = this.getFQName();
-        final ScreenModeStatus res = ScreenModeStatus.getScreenModeStatus(key);
+        final ScreenMonitorState res = ScreenMonitorState.getScreenMonitorState(key);
         if(null == res & throwException) {
-            throw new InternalError("ScreenModeStatus.getScreenModeStatus("+key+") == null");
+            throw new InternalError("ScreenMonitorStatus.getScreenModeStatus("+key+") == null");
         }
         return res;
     }
     
-    public ScreenMode getOriginalScreenMode() {
-        final ScreenModeStatus sms = getScreenModeStatus(false);
-        return ( null != sms ) ? sms.getOriginalScreenMode() : null ;
-    }
-
-    public ScreenMode getCurrentScreenMode() {
-        ScreenMode smU = null;
-        final ScreenModeStatus sms = getScreenModeStatus(true);
-        final ScreenMode sm0 = getCurrentScreenModeIntern();
-        if(null == sm0) {
-            throw new InternalError("getCurrentScreenModeImpl() == null");
+    @Override
+    public void monitorModeChangeNotify(MonitorEvent me) {
+        if(DEBUG) {
+            System.err.println("monitorModeChangeNotify: "+me);
         }
-        sms.lock();
-        try {
-            smU = sms.getScreenModes().getOrAdd(sm0); // unified instance, maybe new
-
-            // if mode has changed somehow, update it ..
-            if( sms.getCurrentScreenMode().hashCode() != smU.hashCode() ) {
-                sms.fireScreenModeChanged(smU, true);
-            }
-        } finally {
-            sms.unlock();
+        for(int i=0; i<referencedScreenModeListener.size(); i++) {
+            ((MonitorModeListener)referencedScreenModeListener.get(i)).monitorModeChangeNotify(me);
         }
-        return smU;
     }
 
-    public boolean setCurrentScreenMode(ScreenMode screenMode) {
-        final ScreenMode smC = getCurrentScreenMode();
-        ScreenMode smU = getScreenModesOrig().get(screenMode); // unify via value hash
-        if(smU.equals(smC)) {
-            if(DEBUG) {
-                System.err.println("Screen.setCurrentScreenMode ("+(System.nanoTime()-tCreated)+"): 0.0 is-current (skip) "+smU+" == "+smC);
-            }            
-            return true;
-        }
-        ScreenModeStatus sms = ScreenModeStatus.getScreenModeStatus(this.getFQName());
-        if(null == sms) {
-            throw new InternalError("ScreenModeStatus.getScreenModeStatus("+this.getFQName()+") == null");            
-        }
-        boolean success;
-        sms.lock();
-        try {
-            final long tStart;
-            if(DEBUG) {
-                tStart = System.nanoTime();                
-            } else {
-                tStart = 0;
+    private void updateNativeMonitorDevicesViewport() {
+        final List<MonitorDevice> monitors = getMonitorDevices();
+        for(int i=monitors.size()-1; i>=0; i--) {
+            final MonitorDeviceImpl monitor = (MonitorDeviceImpl) monitors.get(i);
+            final Rectangle newViewport = getNativeMonitorDeviceViewportImpl(monitor);
+            if( DEBUG ) {
+                System.err.println("Screen.updateMonitorViewport["+i+"]: "+monitor.getViewport()+" -> "+newViewport);
             }
-            
-            sms.fireScreenModeChangeNotify(smU);
-            if(DEBUG) {
-                System.err.println("Screen.setCurrentScreenMode ("+(System.nanoTime()-tStart)/1e6+"ms): fireScreenModeChangeNotify() "+smU);
+            if( null != newViewport ) {
+                monitor.setViewportValue(newViewport);
             }
-
-            success = setCurrentScreenModeImpl(smU);
-            if(success) {
-                if(DEBUG) {
-                    System.err.println("Screen.setCurrentScreenMode ("+(System.nanoTime()-tStart)/1e6+"ms): setCurrentScreenModeImpl() "+smU+", success(1): "+success);
-                }
-            } else {
-                // 2nd attempt validate!
-                final ScreenMode queriedCurrent = getCurrentScreenMode(); // may fireScreenModeChanged(..) if successful and differs!
-                final ScreenMode smsCurrent = sms.getCurrentScreenMode();
-                success = smsCurrent.hashCode() == smU.hashCode() && queriedCurrent.hashCode() == smU.hashCode() ;
-                if(DEBUG) {
-                    System.err.println("Screen.setCurrentScreenMode.2: queried "+queriedCurrent);
-                    System.err.println("Screen.setCurrentScreenMode.2:     SMS "+smsCurrent);
-                    System.err.println("Screen.setCurrentScreenMode ("+(System.nanoTime()-tStart)/1e6+"ms): setCurrentScreenModeImpl() "+smU+", success(2): "+success);
-                }
-            }
-            sms.fireScreenModeChanged(smU, success);
-            if(DEBUG) {
-                System.err.println("Screen.setCurrentScreenMode ("+(System.nanoTime()-tStart)/1e6+"ms): X.X "+smU+", success: "+success);
-            }
-        } finally {
-            sms.unlock();
-        }
-        return success;
+        }        
     }
-
-    public void screenModeChangeNotify(ScreenMode sm) {
-        for(int i=0; i<referencedScreenModeListener.size(); i++) {
-            ((ScreenModeListener)referencedScreenModeListener.get(i)).screenModeChangeNotify(sm);
-        }
-    }
-
-    public void screenModeChanged(ScreenMode sm, boolean success) {
+    
+    @Override
+    public void monitorModeChanged(MonitorEvent me, boolean success) {
         if(success) {
+            updateNativeMonitorDevicesViewport();
             updateVirtualScreenOriginAndSize();
         }
+        if(DEBUG) {
+            System.err.println("monitorModeChanged: success "+success+", "+me);
+        }
         for(int i=0; i<referencedScreenModeListener.size(); i++) {
-            ((ScreenModeListener)referencedScreenModeListener.get(i)).screenModeChanged(sm, success);
+            ((MonitorModeListener)referencedScreenModeListener.get(i)).monitorModeChanged(me, success);
         }
     }
 
-    public synchronized final void addScreenModeListener(ScreenModeListener sml) {
+    @Override
+    public synchronized final void addMonitorModeListener(MonitorModeListener sml) {
         referencedScreenModeListener.add(sml);
     }
 
-    public synchronized final void removeScreenModeListener(ScreenModeListener sml) {
+    @Override
+    public synchronized final void removeMonitorModeListener(MonitorModeListener sml) {
         referencedScreenModeListener.remove(sml);
     }
-
-    /** ScreenModeStatus bridge to native implementation */
-    protected final ArrayHashSet<ScreenMode> getScreenModesOrig() {
-        ScreenModeStatus sms = ScreenModeStatus.getScreenModeStatus(this.getFQName());
-        if(null!=sms) {
-            return sms.getScreenModes();
-        }
-        return null;
-    }
-
-    /** ScreenModeStatus bridge to native implementation */
-    protected final IntIntHashMap getScreenModesIdx2NativeIdx() {
-        ScreenModeStatus sms = ScreenModeStatus.getScreenModeStatus(this.getFQName());
-        if(null!=sms) {
-            return sms.getScreenModesIdx2NativeIdx();
-        }
-        return null;
-    }
-
-    /**
-     * To be implemented by the native specification.<br>
-     * Is called within a thread safe environment.<br>
-     * Is called only to collect the ScreenModes, usually at startup setting up modes.<br>
-     * <br>
-     * <b>WARNING</b>: must be synchronized with {@link com.jogamp.newt.util.ScreenModeUtil#NUM_SCREEN_MODE_PROPERTIES},
-     * ie {@link com.jogamp.newt.util.ScreenModeUtil#streamIn(com.jogamp.common.util.ArrayHashSet, com.jogamp.common.util.ArrayHashSet, com.jogamp.common.util.ArrayHashSet, com.jogamp.common.util.ArrayHashSet, int[], int)}<br>
-     * <br>
-     * <b>Note</b>: Additional 1st element is native mode id.
-     */
-    protected int[] getScreenModeFirstImpl() {
-        return null;
-    }
-
-    /**
-     * To be implemented by the native specification.<br>
-     * Is called within a thread safe environment.<br>
-     * Is called only to collect the ScreenModes, usually at startup setting up modes.<br>
-     * <br>
-     * <b>WARNING</b>: must be synchronized with {@link com.jogamp.newt.util.ScreenModeUtil#NUM_SCREEN_MODE_PROPERTIES},
-     * ie {@link com.jogamp.newt.util.ScreenModeUtil#streamIn(com.jogamp.common.util.ArrayHashSet, com.jogamp.common.util.ArrayHashSet, com.jogamp.common.util.ArrayHashSet, com.jogamp.common.util.ArrayHashSet, int[], int)}<br>
-     * <br>
-     * <b>Note</b>: Additional 1st element is native mode id.
-     */
-    protected int[] getScreenModeNextImpl() {
-        return null;
+    
+    private final MonitorMode getVirtualMonitorMode(int modeId) {
+        final int[] props = new int[MonitorModeProps.NUM_MONITOR_MODE_PROPERTIES_ALL];
+        int i = 0;
+        props[i++] = MonitorModeProps.NUM_MONITOR_MODE_PROPERTIES_ALL;
+        props[i++] = getWidth();  // width
+        props[i++] = getHeight(); // height
+        props[i++] = default_sm_bpp;
+        props[i++] = default_sm_rate * 100;
+        props[i++] = 0; // flags
+        props[i++] = modeId;
+        props[i++] = default_sm_rotation;
+        if( MonitorModeProps.NUM_MONITOR_MODE_PROPERTIES_ALL != i ) {
+            throw new InternalError("XX");
+        }
+        return MonitorModeProps.streamInMonitorMode(null, null, props, 0);
     }
-
-    /**
-     * To be implemented by the native specification.<br>
-     * Is called within a thread safe environment.<br>
-     */
-    protected ScreenMode getCurrentScreenModeImpl() {
-        return null;
+    
+    private final MonitorDevice getVirtualMonitorDevice(int monitorId, MonitorMode currentMode) {
+        int[] props = new int[MonitorModeProps.MIN_MONITOR_DEVICE_PROPERTIES];
+        int i = 0;
+        props[i++] = MonitorModeProps.MIN_MONITOR_DEVICE_PROPERTIES;
+        props[i++] = monitorId;
+        props[i++] = default_sm_widthmm;
+        props[i++] = default_sm_heightmm;
+        props[i++] = 0; // rotated viewport x
+        props[i++] = 0; // rotated viewport y
+        props[i++] = currentMode.getRotatedWidth();  // rotated viewport width
+        props[i++] = currentMode.getRotatedHeight(); // rotated viewport height
+        props[i++] = currentMode.getId(); // current mode id
+        props[i++] = currentMode.getRotation();
+        props[i++] = currentMode.getId(); // supported mode id #1
+        if( MonitorModeProps.MIN_MONITOR_DEVICE_PROPERTIES != i ) {
+            throw new InternalError("XX");
+        }
+        return MonitorModeProps.streamInMonitorDevice(null, null, this, props, 0);
     }
     
     /**
-     * Utilizes {@link #getCurrentScreenModeImpl()}, if the latter returns null it uses
+     * Utilizes {@link #getCurrentMonitorModeImpl()}, if the latter returns null it uses
      * the current screen size and dummy values.
      */
-    protected ScreenMode getCurrentScreenModeIntern() {
-        ScreenMode res;
+    protected final MonitorMode queryCurrentMonitorModeIntern(MonitorDevice monitor) {
+        MonitorMode res;
         if(DEBUG_TEST_SCREENMODE_DISABLED) {
             res = null;
         } else {
-            res = getCurrentScreenModeImpl();
+            res = queryCurrentMonitorModeImpl(monitor);
         }
         if(null == res) {
             if( 0>=getWidth() || 0>=getHeight() ) {
                 updateVirtualScreenOriginAndSize();
             }
-            int[] props = new int[ScreenModeUtil.NUM_SCREEN_MODE_PROPERTIES_ALL];
-            int i = 0;
-            props[i++] = 0; // set later for verification of iterator
-            props[i++] = getWidth();  // width
-            props[i++] = getHeight(); // height
-            props[i++] = default_sm_bpp;
-            props[i++] = default_sm_widthmm;
-            props[i++] = default_sm_heightmm;
-            props[i++] = default_sm_rate;
-            props[i++] = default_sm_rotation;
-            props[i - ScreenModeUtil.NUM_SCREEN_MODE_PROPERTIES_ALL] = i; // count
-            res = ScreenModeUtil.streamIn(props, 0);
+            res = getVirtualMonitorMode(monitor.getCurrentMode().getId());
         }
         return res;
     }
 
-    /**
-     * To be implemented by the native specification.<br>
-     * Is called within a thread safe environment.<br>
-     */
-    protected boolean setCurrentScreenModeImpl(ScreenMode screenMode) {
-        return false;
-    }
-
-    private ScreenModeStatus initScreenModeStatus() {
+    private final ScreenMonitorState initScreenMonitorState() {
         long t0;
         if(DEBUG) {
             t0 = System.nanoTime();
@@ -535,138 +512,139 @@ public abstract class ScreenImpl extends Screen implements ScreenModeListener {
             t0 = 0;
         }
 
-        ScreenModeStatus sms;
-        ScreenModeStatus.lockScreenModeStatus();
+        boolean vScrnSizeUpdated = false;
+        ScreenMonitorState sms;
+        ScreenMonitorState.lockScreenMonitorState();
         try {
-            sms = ScreenModeStatus.getScreenModeStatus(this.getFQName());
-            if(null==sms) {                
-                IntIntHashMap screenModesIdx2NativeIdx = new IntIntHashMap();
-                final ScreenMode currentSM = getCurrentScreenModeIntern();
-                if(null == currentSM) {
-                    throw new InternalError("getCurrentScreenModeImpl() == null");
+            sms = ScreenMonitorState.getScreenMonitorState(this.getFQName());
+            if(null==sms) {
+                final MonitorModeProps.Cache cache = new MonitorModeProps.Cache();
+                if( 0 >= collectNativeMonitorModes(cache) ) {                    
+                    updateVirtualScreenOriginAndSize();
+                    vScrnSizeUpdated = true;
+                    final MonitorMode mode = getVirtualMonitorMode(0);
+                    cache.monitorModes.getOrAdd(mode);
+                    final MonitorDevice monitor = getVirtualMonitorDevice(0, mode);
+                    cache.monitorDevices.getOrAdd(monitor);
                 }
-
-                ArrayHashSet<ScreenMode> screenModes = collectNativeScreenModes(screenModesIdx2NativeIdx);
-                screenModes.getOrAdd(currentSM);
                 if(DEBUG) {
                     int i=0;
-                    for(Iterator<ScreenMode> iter=screenModes.iterator(); iter.hasNext(); i++) {
-                        System.err.println(i+": "+iter.next());
+                    for(Iterator<MonitorMode> iMode=cache.monitorModes.iterator(); iMode.hasNext(); i++) {
+                        System.err.println("All["+i+"]: "+iMode.next());
+                    }
+                    i=0;
+                    for(Iterator<MonitorDevice> iMonitor=cache.monitorDevices.iterator(); iMonitor.hasNext(); i++) {
+                        final MonitorDevice crt = iMonitor.next();
+                        System.err.println("["+i+"]: "+crt);
+                        int j=0;
+                        for(Iterator<MonitorMode> iMode=crt.getSupportedModes().iterator(); iMode.hasNext(); j++) {
+                            System.err.println("["+i+"]["+j+"]: "+iMode.next());
+                        }
                     }
                 }
-                
-                sms = new ScreenModeStatus(screenModes, screenModesIdx2NativeIdx);
-                ScreenMode originalScreenMode0 = screenModes.get(currentSM); // unify via value hash
-                if(null == originalScreenMode0) {
-                    throw new RuntimeException(currentSM+" could not be hashed from ScreenMode list");
-                }
-                sms.setOriginalScreenMode(originalScreenMode0);
-                ScreenModeStatus.mapScreenModeStatus(this.getFQName(), sms);
+                sms = new ScreenMonitorState(cache.monitorDevices, cache.monitorModes);
+                ScreenMonitorState.mapScreenMonitorState(this.getFQName(), sms);
             }
         } finally {
-            ScreenModeStatus.unlockScreenModeStatus();
+            ScreenMonitorState.unlockScreenMonitorState();
         }
         if(DEBUG) {
             System.err.println("Screen.initScreenModeStatus() END dt "+ (System.nanoTime()-t0)/1e6 +"ms");
         }
+        if( !vScrnSizeUpdated ) {
+            updateVirtualScreenOriginAndSize();
+        }
+
         return sms;
     }
 
-    /** ignores bpp < 15 */
-    private ArrayHashSet<ScreenMode> collectNativeScreenModes(IntIntHashMap screenModesIdx2NativeId) {
-        ArrayHashSet<DimensionImmutable> resolutionPool   = new ArrayHashSet<DimensionImmutable>();
-        ArrayHashSet<SurfaceSize>        surfaceSizePool  = new ArrayHashSet<SurfaceSize>();
-        ArrayHashSet<DimensionImmutable> screenSizeMMPool = new ArrayHashSet<DimensionImmutable>();
-        ArrayHashSet<MonitorMode>        monitorModePool  = new ArrayHashSet<MonitorMode>();
-        ArrayHashSet<ScreenMode>         screenModePool   = new ArrayHashSet<ScreenMode>();
-
-        int[] smProps = null;
-        int num = 0;
-        final int idxBpp =   1 // native mode
-                           + 1 // count
-                           + ScreenModeUtil.NUM_RESOLUTION_PROPERTIES
-                           + ScreenModeUtil.NUM_SURFACE_SIZE_PROPERTIES
-                           - 1 ; // index 0 based
-        do {
-            if(DEBUG_TEST_SCREENMODE_DISABLED) {
-                smProps = null;
-            } else if(0 == num) {
-                smProps = getScreenModeFirstImpl();
-            } else {
-                smProps = getScreenModeNextImpl();
-            }
-            if(null != smProps && 0 < smProps.length && smProps[idxBpp] >= 15) {
-                int nativeId = smProps[0];
-                int screenModeIdx = ScreenModeUtil.streamIn(resolutionPool, surfaceSizePool, screenSizeMMPool,
-                                                            monitorModePool, screenModePool, smProps, 1);
-                if(DEBUG) {
-                    System.err.println("ScreenImpl.collectNativeScreenModes: #"+num+": idx: "+nativeId+" native -> "+screenModeIdx+" newt");
+    /**
+     * Returns the number of successful collected {@link MonitorDevice}s.
+     * <p>
+     * Collects {@link MonitorDevice}s and {@link MonitorMode}s within the given cache.
+     * </p>
+     */
+    private final int collectNativeMonitorModes(MonitorModeProps.Cache cache) { 
+        if(!DEBUG_TEST_SCREENMODE_DISABLED) {
+            collectNativeMonitorModesAndDevicesImpl(cache);
+        }
+        // filter out insufficient modes
+        for(int i=cache.monitorModes.size()-1; i>=0; i--) {
+            final MonitorMode mode = cache.monitorModes.get(i);
+            if( 16 > mode.getSurfaceSize().getBitsPerPixel() ) {
+                boolean keep = false;
+                for(int j=cache.monitorDevices.size()-1; !keep && j>=0; j--) {
+                    final MonitorDevice monitor = cache.monitorDevices.get(j);
+                    keep = monitor.getCurrentMode().equals(mode);
                 }
-                
-                if(screenModeIdx >= 0) {
-                    screenModesIdx2NativeId.put(screenModeIdx, nativeId);
+                if(!keep) {
+                    cache.monitorModes.remove(i);
+                    for(int j=cache.monitorDevices.size()-1; j>=0; j--) {
+                        final MonitorDeviceImpl monitor = (MonitorDeviceImpl) cache.monitorDevices.get(j);
+                        monitor.getSupportedModesImpl().remove(mode);
+                    }
                 }
-            } else if(DEBUG) {
-                System.err.println("ScreenImpl.collectNativeScreenModes: #"+num+": smProps: "+(null!=smProps)+
-                                   ", len: "+(null != smProps ? smProps.length : 0)+
-                                   ", bpp: "+(null != smProps && 0 < smProps.length ? smProps[idxBpp] : 0)+
-                                   " - DROPPING");
             }
-            num++;
-        } while ( null != smProps && 0 < smProps.length );
-
-        if(DEBUG) {
-            System.err.println("ScreenImpl.collectNativeScreenModes: ScreenMode number  : "+screenModePool.size());
-            System.err.println("ScreenImpl.collectNativeScreenModes: MonitorMode number : "+monitorModePool.size());
-            System.err.println("ScreenImpl.collectNativeScreenModes: ScreenSizeMM number: "+screenSizeMMPool.size());
-            System.err.println("ScreenImpl.collectNativeScreenModes: SurfaceSize number : "+surfaceSizePool.size());
-            System.err.println("ScreenImpl.collectNativeScreenModes: Resolution number  : "+resolutionPool.size());
         }
-
-        return screenModePool;
+        if( DEBUG ) {
+            System.err.println("ScreenImpl.collectNativeMonitorModes: MonitorDevice number : "+cache.monitorDevices.size());
+            System.err.println("ScreenImpl.collectNativeMonitorModes: MonitorMode number   : "+cache.monitorModes.size());
+            System.err.println("ScreenImpl.collectNativeMonitorModes: SizeAndRate number   : "+cache.sizeAndRates.size());
+            System.err.println("ScreenImpl.collectNativeMonitorModes: SurfaceSize number   : "+cache.surfaceSizes.size());
+            System.err.println("ScreenImpl.collectNativeMonitorModes: Resolution number    : "+cache.resolutions.size());
+        }
+        return cache.monitorDevices.size();
     }
 
     private void releaseScreenModeStatus() {
-        ScreenModeStatus sms;
-        ScreenModeStatus.lockScreenModeStatus();
+        ScreenMonitorState sms;
+        ScreenMonitorState.lockScreenMonitorState();
         try {
-            sms = ScreenModeStatus.getScreenModeStatus(getFQName());
+            sms = ScreenMonitorState.getScreenMonitorState(getFQName());
             if(null != sms) {
                 sms.lock();
                 try {
                     if(0 == sms.removeListener(this)) {
-                        if(sms.isOriginalModeChangedByOwner()) {
-                            System.err.println("Screen.destroy(): "+sms.getCurrentScreenMode()+" -> "+sms.getOriginalScreenMode());
-                            try {
-                                setCurrentScreenMode(sms.getOriginalScreenMode());
-                            } catch (Throwable t) {
-                                // be verbose but continue
-                                t.printStackTrace();
+                        final ArrayList<MonitorDevice> monitorDevices = sms.getMonitorDevices().getData();
+                        for(int i=0; i<monitorDevices.size(); i++) {
+                            final MonitorDevice monitor = monitorDevices.get(i);
+                            if( monitor.isModeChangedByUs() ) {
+                                System.err.println("Screen.destroy(): Reset "+monitor);
+                                try {
+                                    monitor.setCurrentMode(monitor.getOriginalMode());
+                                } catch (Throwable t) {
+                                    // be verbose but continue
+                                    t.printStackTrace();
+                                }
                             }
                         }
-                        ScreenModeStatus.unmapScreenModeStatus(getFQName());
+                        ScreenMonitorState.unmapScreenMonitorState(getFQName());
                     }
                 } finally {
                     sms.unlock();
                 }
             }            
         } finally {
-            ScreenModeStatus.unlockScreenModeStatus();
+            ScreenMonitorState.unlockScreenMonitorState();
         }
     }
     
     private final void shutdown() {
-        ScreenModeStatus sms = ScreenModeStatus.getScreenModeStatusUnlocked(getFQName());
+        ScreenMonitorState sms = ScreenMonitorState.getScreenMonitorStateUnlocked(getFQName());
         if(null != sms) {
-            if(sms.isOriginalModeChangedByOwner()) {
-                try {
-                    System.err.println("Screen.shutdown(): "+sms.getCurrentScreenMode()+" -> "+sms.getOriginalScreenMode());
-                    setCurrentScreenModeImpl(sms.getOriginalScreenMode());
-                } catch (Throwable t) {
-                    // be quiet .. shutdown
+            final ArrayList<MonitorDevice> monitorDevices = sms.getMonitorDevices().getData();
+            for(int i=0; i<monitorDevices.size(); i++) {
+                final MonitorDevice monitor = monitorDevices.get(i);
+                if( monitor.isModeChangedByUs() ) {
+                    System.err.println("Screen.shutdown(): Reset "+monitor);
+                    try {
+                        monitor.setCurrentMode(monitor.getOriginalMode());
+                    } catch (Throwable t) {
+                        // be quiet .. shutdown
+                    }
                 }
             }
-            ScreenModeStatus.unmapScreenModeStatusUnlocked(getFQName());
+            ScreenMonitorState.unmapScreenMonitorStateUnlocked(getFQName());
         }            
     }
     private static final void shutdownAll() {
@@ -688,5 +666,4 @@ public abstract class ScreenImpl extends Screen implements ScreenModeListener {
             }
         });
     }
-}
-
+}
\ No newline at end of file
diff --git a/src/newt/classes/jogamp/newt/ScreenModeStatus.java b/src/newt/classes/jogamp/newt/ScreenModeStatus.java
deleted file mode 100644
index 4075fb131..000000000
--- a/src/newt/classes/jogamp/newt/ScreenModeStatus.java
+++ /dev/null
@@ -1,231 +0,0 @@
-/**
- * Copyright 2010 JogAmp Community. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without modification, are
- * permitted provided that the following conditions are met:
- *
- *    1. Redistributions of source code must retain the above copyright notice, this list of
- *       conditions and the following disclaimer.
- *
- *    2. Redistributions in binary form must reproduce the above copyright notice, this list
- *       of conditions and the following disclaimer in the documentation and/or other materials
- *       provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY JogAmp Community ``AS IS'' AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
- * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JogAmp Community OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
- * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
- * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * The views and conclusions contained in the software and documentation are those of the
- * authors and should not be interpreted as representing official policies, either expressed
- * or implied, of JogAmp Community.
- */
-
-package jogamp.newt;
-
-import com.jogamp.common.util.ArrayHashSet;
-import com.jogamp.common.util.IntIntHashMap;
-import com.jogamp.common.util.locks.LockFactory;
-import com.jogamp.common.util.locks.RecursiveLock;
-import com.jogamp.newt.Screen;
-import com.jogamp.newt.ScreenMode;
-import com.jogamp.newt.event.ScreenModeListener;
-
-import java.util.ArrayList;
-import java.util.HashMap;
-
-public class ScreenModeStatus {
-    private static boolean DEBUG = Screen.DEBUG;
-
-    private RecursiveLock lock = LockFactory.createRecursiveLock();
-    private ArrayHashSet<ScreenMode> screenModes;
-    private IntIntHashMap screenModesIdx2NativeIdx;
-    private ScreenMode currentScreenMode;
-    private ScreenMode originalScreenMode;
-    private boolean screenModeChangedByOwner; 
-    private ArrayList<ScreenModeListener> listener = new ArrayList<ScreenModeListener>();
-
-    private static HashMap<String, ScreenModeStatus> screenFQN2ScreenModeStatus = new HashMap<String, ScreenModeStatus>();
-    private static RecursiveLock screen2ScreenModeStatusLock = LockFactory.createRecursiveLock();
-
-    protected static void mapScreenModeStatus(String screenFQN, ScreenModeStatus sms) {
-        screen2ScreenModeStatusLock.lock();
-        try {
-            ScreenModeStatus _sms = screenFQN2ScreenModeStatus.get(screenFQN);
-            if( null != _sms ) {
-                throw new RuntimeException("ScreenModeStatus "+_sms+" already mapped to "+screenFQN);
-            }
-            screenFQN2ScreenModeStatus.put(screenFQN, sms);
-            if(DEBUG) {
-                System.err.println("ScreenModeStatus.map "+screenFQN+" -> "+sms);
-            }
-        } finally {
-            screen2ScreenModeStatusLock.unlock();
-        }
-    }
-
-    /**
-     * @param screen the prev user
-     * @return true if mapping is empty, ie no more usage of the mapped ScreenModeStatus
-     */
-    protected static void unmapScreenModeStatus(String screenFQN) {
-        screen2ScreenModeStatusLock.lock();
-        try {
-            unmapScreenModeStatusUnlocked(screenFQN);
-        } finally {
-            screen2ScreenModeStatusLock.unlock();
-        }
-    }
-    protected static void unmapScreenModeStatusUnlocked(String screenFQN) {
-        ScreenModeStatus sms = screenFQN2ScreenModeStatus.remove(screenFQN);
-        if(DEBUG) {
-            System.err.println("ScreenModeStatus.unmap "+screenFQN+" -> "+sms);
-        }
-    }
-
-    protected static ScreenModeStatus getScreenModeStatus(String screenFQN) {
-        screen2ScreenModeStatusLock.lock();
-        try {
-            return getScreenModeStatusUnlocked(screenFQN);
-        } finally {
-            screen2ScreenModeStatusLock.unlock();
-        }
-    }
-    protected static ScreenModeStatus getScreenModeStatusUnlocked(String screenFQN) {
-        return screenFQN2ScreenModeStatus.get(screenFQN);
-    }
-
-    protected static void lockScreenModeStatus() {
-        screen2ScreenModeStatusLock.lock();
-    }
-
-    protected static void unlockScreenModeStatus() {
-        screen2ScreenModeStatusLock.unlock();
-    }
-    
-    public ScreenModeStatus(ArrayHashSet<ScreenMode> screenModes,
-                            IntIntHashMap screenModesIdx2NativeIdx) {
-        this.screenModes = screenModes;
-        this.screenModesIdx2NativeIdx = screenModesIdx2NativeIdx;
-        this.screenModeChangedByOwner = false;
-    }
-
-    protected final void setOriginalScreenMode(ScreenMode originalScreenMode) {
-        this.originalScreenMode = originalScreenMode;
-        this.currentScreenMode = originalScreenMode;
-    }
-
-    public final ScreenMode getOriginalScreenMode() {
-        return originalScreenMode;
-    }
-
-    public final ScreenMode getCurrentScreenMode() {
-        lock();
-        try {
-            return currentScreenMode;
-        } finally {
-            unlock();
-        }
-    }
-
-    /**
-     * We cannot guarantee that we won't interfere w/ another running
-     * application's screen mode change.
-     * <p>
-     * At least we only return <code>true</true> if the owner, ie. the Screen,
-     * has changed the screen mode and if the original screen mode 
-     * is not current the current one.
-     * </p>
-     * @return
-     */
-    public final boolean isOriginalModeChangedByOwner() {
-        lock();
-        try {
-            return screenModeChangedByOwner && !isCurrentModeOriginalMode();
-        } finally {
-            unlock();
-        }
-    }
-
-    protected final boolean isCurrentModeOriginalMode() {
-        if(null != currentScreenMode && null != originalScreenMode) {
-            return currentScreenMode.hashCode() == originalScreenMode.hashCode();
-        }
-        return true;
-    }
-    
-    protected final ArrayHashSet<ScreenMode> getScreenModes() {
-        return screenModes;
-    }
-
-    protected final IntIntHashMap getScreenModesIdx2NativeIdx() {
-        return screenModesIdx2NativeIdx;
-    }
-
-    protected final int addListener(ScreenModeListener l) {
-        lock();
-        try {
-            listener.add(l);
-            if(DEBUG) {
-                System.err.println("ScreenModeStatus.addListener (size: "+listener.size()+"): "+l);
-            }
-            return listener.size();
-        } finally {
-            unlock();
-        }
-    }
-
-    protected final int removeListener(ScreenModeListener l) {
-        lock();
-        try {
-            if(!listener.remove(l)) {
-                throw new RuntimeException("ScreenModeListener "+l+" not contained");
-            }
-            if(DEBUG) {
-                System.err.println("ScreenModeStatus.removeListener (size: "+listener.size()+"): "+l);
-            }
-            return listener.size();
-        } finally {
-            unlock();
-        }
-    }
-
-    protected final void fireScreenModeChangeNotify(ScreenMode desiredScreenMode) {
-        lock();
-        try {
-            for(int i=0; i<listener.size(); i++) {
-                listener.get(i).screenModeChangeNotify(desiredScreenMode);
-            }
-        } finally {
-            unlock();
-        }
-    }
-
-    protected void fireScreenModeChanged(ScreenMode currentScreenMode, boolean success) {
-        lock();
-        try {
-            if(success) {
-                this.currentScreenMode = currentScreenMode;
-                this.screenModeChangedByOwner = !isCurrentModeOriginalMode();
-            }
-            for(int i=0; i<listener.size(); i++) {
-                listener.get(i).screenModeChanged(currentScreenMode, success);
-            }
-        } finally {
-            unlock();
-        }
-    }
-
-    protected final void lock() throws RuntimeException {
-        lock.lock();
-    }
-
-    protected final void unlock() throws RuntimeException {
-        lock.unlock();
-    }
-}
diff --git a/src/newt/classes/jogamp/newt/ScreenMonitorState.java b/src/newt/classes/jogamp/newt/ScreenMonitorState.java
new file mode 100644
index 000000000..beeb7b922
--- /dev/null
+++ b/src/newt/classes/jogamp/newt/ScreenMonitorState.java
@@ -0,0 +1,195 @@
+/**
+ * Copyright 2010 JogAmp Community. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are
+ * permitted provided that the following conditions are met:
+ *
+ *    1. Redistributions of source code must retain the above copyright notice, this list of
+ *       conditions and the following disclaimer.
+ *
+ *    2. Redistributions in binary form must reproduce the above copyright notice, this list
+ *       of conditions and the following disclaimer in the documentation and/or other materials
+ *       provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY JogAmp Community ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JogAmp Community OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * The views and conclusions contained in the software and documentation are those of the
+ * authors and should not be interpreted as representing official policies, either expressed
+ * or implied, of JogAmp Community.
+ */
+
+package jogamp.newt;
+
+import com.jogamp.common.util.ArrayHashSet;
+import com.jogamp.common.util.locks.LockFactory;
+import com.jogamp.common.util.locks.RecursiveLock;
+import com.jogamp.newt.MonitorDevice;
+import com.jogamp.newt.Screen;
+import com.jogamp.newt.MonitorMode;
+import com.jogamp.newt.event.MonitorEvent;
+import com.jogamp.newt.event.MonitorModeListener;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+
+public class ScreenMonitorState {
+    private static boolean DEBUG = Screen.DEBUG;
+    
+    private final RecursiveLock lock = LockFactory.createRecursiveLock();
+    private final ArrayHashSet<MonitorDevice> allMonitors;
+    private final ArrayHashSet<MonitorMode> allMonitorModes;
+    private ArrayList<MonitorModeListener> listener = new ArrayList<MonitorModeListener>();
+
+    private static HashMap<String, ScreenMonitorState> screenFQN2ScreenMonitorState = new HashMap<String, ScreenMonitorState>();
+    private static RecursiveLock screen2ScreenMonitorState = LockFactory.createRecursiveLock();
+
+    protected static void mapScreenMonitorState(String screenFQN, ScreenMonitorState sms) {
+        screen2ScreenMonitorState.lock();
+        try {
+            ScreenMonitorState _sms = screenFQN2ScreenMonitorState.get(screenFQN);
+            if( null != _sms ) {
+                throw new RuntimeException("ScreenMonitorState "+_sms+" already mapped to "+screenFQN);
+            }
+            screenFQN2ScreenMonitorState.put(screenFQN, sms);
+            if(DEBUG) {
+                System.err.println("ScreenMonitorState.map "+screenFQN+" -> "+sms);
+            }
+        } finally {
+            screen2ScreenMonitorState.unlock();
+        }
+    }
+
+    /**
+     * @param screen the prev user
+     * @return true if mapping is empty, ie no more usage of the mapped ScreenMonitorState
+     */
+    protected static void unmapScreenMonitorState(String screenFQN) {
+        screen2ScreenMonitorState.lock();
+        try {
+            unmapScreenMonitorStateUnlocked(screenFQN);
+        } finally {
+            screen2ScreenMonitorState.unlock();
+        }
+    }
+    protected static void unmapScreenMonitorStateUnlocked(String screenFQN) {
+        ScreenMonitorState sms = screenFQN2ScreenMonitorState.remove(screenFQN);
+        if(DEBUG) {
+            System.err.println("ScreenMonitorState.unmap "+screenFQN+" -> "+sms);
+        }
+    }
+
+    protected static ScreenMonitorState getScreenMonitorState(String screenFQN) {
+        screen2ScreenMonitorState.lock();
+        try {
+            return getScreenMonitorStateUnlocked(screenFQN);
+        } finally {
+            screen2ScreenMonitorState.unlock();
+        }
+    }
+    protected static ScreenMonitorState getScreenMonitorStateUnlocked(String screenFQN) {
+        return screenFQN2ScreenMonitorState.get(screenFQN);
+    }
+
+    protected static void lockScreenMonitorState() {
+        screen2ScreenMonitorState.lock();
+    }
+
+    protected static void unlockScreenMonitorState() {
+        screen2ScreenMonitorState.unlock();
+    }
+    
+    public ScreenMonitorState(ArrayHashSet<MonitorDevice> allMonitors,
+                              ArrayHashSet<MonitorMode> allMonitorModes) {
+        this.allMonitors = allMonitors; 
+        this.allMonitorModes = allMonitorModes;
+    }
+
+    protected ArrayHashSet<MonitorDevice> getMonitorDevices() { 
+        return allMonitors;
+    }
+    
+    protected ArrayHashSet<MonitorMode> getMonitorModes() { 
+        return allMonitorModes;
+    }
+    
+    protected final int addListener(MonitorModeListener l) {
+        lock();
+        try {
+            listener.add(l);
+            if(DEBUG) {
+                System.err.println("ScreenMonitorState.addListener (size: "+listener.size()+"): "+l);
+            }
+            return listener.size();
+        } finally {
+            unlock();
+        }
+    }
+
+    protected final int removeListener(MonitorModeListener l) {
+        lock();
+        try {
+            if(!listener.remove(l)) {
+                throw new RuntimeException("ScreenModeListener "+l+" not contained");
+            }
+            if(DEBUG) {
+                System.err.println("ScreenMonitorState.removeListener (size: "+listener.size()+"): "+l);
+            }
+            return listener.size();
+        } finally {
+            unlock();
+        }
+    }
+
+    protected final MonitorDevice getMonitor(MonitorDevice monitor) {
+        return allMonitors.get(monitor);
+    }
+    
+    protected final void validateMonitor(MonitorDevice monitor) {
+        final MonitorDevice md = allMonitors.get(monitor);
+        if( null == md ) {
+            throw new InternalError("Monitor unknown: "+monitor);
+        }
+    }
+    
+    protected final void fireScreenModeChangeNotify(MonitorDevice monitor, MonitorMode desiredMode) {
+        lock();
+        try {
+            validateMonitor(monitor);
+            final MonitorEvent me = new MonitorEvent(MonitorEvent.EVENT_MONITOR_MODE_CHANGE_NOTIFY, monitor, System.currentTimeMillis(), desiredMode);
+            for(int i=0; i<listener.size(); i++) {
+                listener.get(i).monitorModeChangeNotify(me);
+            }
+        } finally {
+            unlock();
+        }
+    }
+
+    protected void fireScreenModeChanged(MonitorDevice monitor, MonitorMode currentMode, boolean success) {
+        lock();
+        try {
+            validateMonitor(monitor);
+            final MonitorEvent me = new MonitorEvent(MonitorEvent.EVENT_MONITOR_MODE_CHANGE_NOTIFY, monitor, System.currentTimeMillis(), currentMode);
+            for(int i=0; i<listener.size(); i++) {
+                listener.get(i).monitorModeChanged(me, success);
+            }
+        } finally {
+            unlock();
+        }
+    }
+
+    protected final void lock() throws RuntimeException {
+        lock.lock();
+    }
+
+    protected final void unlock() throws RuntimeException {
+        lock.unlock();
+    }
+}
diff --git a/src/newt/classes/jogamp/newt/WindowImpl.java b/src/newt/classes/jogamp/newt/WindowImpl.java
index bfb450f68..3a018d231 100644
--- a/src/newt/classes/jogamp/newt/WindowImpl.java
+++ b/src/newt/classes/jogamp/newt/WindowImpl.java
@@ -35,25 +35,27 @@
 package jogamp.newt;
 
 import java.util.ArrayList;
+import java.util.List;
 import java.lang.reflect.Method;
 
 import com.jogamp.common.util.IntBitfield;
 import com.jogamp.common.util.ReflectionUtil;
+import com.jogamp.newt.MonitorDevice;
 import com.jogamp.newt.NewtFactory;
 import com.jogamp.newt.Display;
 import com.jogamp.newt.Screen;
 import com.jogamp.newt.Window;
 import com.jogamp.common.util.locks.LockFactory;
 import com.jogamp.common.util.locks.RecursiveLock;
-import com.jogamp.newt.ScreenMode;
 import com.jogamp.newt.event.InputEvent;
 import com.jogamp.newt.event.KeyEvent;
 import com.jogamp.newt.event.KeyListener;
+import com.jogamp.newt.event.MonitorEvent;
 import com.jogamp.newt.event.MouseEvent;
 import com.jogamp.newt.event.MouseListener;
 import com.jogamp.newt.event.NEWTEvent;
 import com.jogamp.newt.event.NEWTEventConsumer;
-import com.jogamp.newt.event.ScreenModeListener;
+import com.jogamp.newt.event.MonitorModeListener;
 import com.jogamp.newt.event.WindowEvent;
 import com.jogamp.newt.event.WindowListener;
 import com.jogamp.newt.event.WindowUpdateEvent;
@@ -68,11 +70,11 @@ import javax.media.nativewindow.NativeWindowException;
 import javax.media.nativewindow.NativeWindowFactory;
 import javax.media.nativewindow.SurfaceUpdatedListener;
 import javax.media.nativewindow.WindowClosingProtocol;
-import javax.media.nativewindow.util.DimensionImmutable;
 import javax.media.nativewindow.util.Insets;
 import javax.media.nativewindow.util.InsetsImmutable;
 import javax.media.nativewindow.util.Point;
 import javax.media.nativewindow.util.Rectangle;
+import javax.media.nativewindow.util.RectangleImmutable;
 
 import jogamp.nativewindow.SurfaceUpdatedHelper;
 
@@ -103,7 +105,9 @@ public abstract class WindowImpl implements Window, NEWTEventConsumer
     private AbstractGraphicsConfiguration config = null; // control access due to delegation
     protected CapabilitiesImmutable capsRequested = null;
     protected CapabilitiesChooser capabilitiesChooser = null; // default null -> default
-    private boolean fullscreen = false, brokenFocusChange = false;    
+    private boolean fullscreen = false, brokenFocusChange = false;
+    private List<MonitorDevice> fullscreenMonitors = null;
+    private boolean fullscreenUseMainMonitor = true;
     private boolean autoPosition = true; // default: true (allow WM to choose top-level position, if not set by user)
     
     private int nfs_width, nfs_height, nfs_x, nfs_y; // non fullscreen client-area size/pos w/o insets
@@ -294,19 +298,40 @@ public abstract class WindowImpl implements Window, NEWTEventConsumer
                     screenReferenceAdded = true;
                 }
                 if(canCreateNativeImpl()) {
+                    final int wX, wY;
+                    final boolean usePosition;
+                    if( autoPosition  ) {
+                        wX = 0;
+                        wY = 0;
+                        usePosition = false;
+                    } else {
+                        wX = getX();
+                        wY = getY();
+                        usePosition = true;
+                    }
+                    final long t0 = System.currentTimeMillis();
                     createNativeImpl();
-                    screen.addScreenModeListener(screenModeListenerImpl);
+                    screen.addMonitorModeListener(screenModeListenerImpl);
                     setTitleImpl(title);
                     setPointerVisibleImpl(pointerVisible);
                     confinePointerImpl(pointerConfined);
                     setKeyboardVisible(keyboardVisible);
-                    if(waitForVisible(true, false)) {
+                    final long remainingV = waitForVisible(true, false);
+                    if( 0 <= remainingV ) {
                         if(isFullscreen()) {
                             synchronized(fullScreenAction) {
                                 fullscreen = false; // trigger a state change
-                                fullScreenAction.init(true);
+                                fullScreenAction.init(true, fullscreenUseMainMonitor, fullscreenMonitors);
+                                fullscreenMonitors = null; // release references ASAP
+                                fullscreenUseMainMonitor = true;
                                 fullScreenAction.run();
                             }
+                        } else {
+                            // Wait until position is reached within tolerances, either auto-position or custom position.
+                            waitForPosition(usePosition, wX, wY, Window.TIMEOUT_NATIVEWINDOW);
+                        }
+                        if (DEBUG_IMPLEMENTATION) {
+                            System.err.println("Window.createNative(): elapsed "+(System.currentTimeMillis()-t0)+" ms");
                         }
                         postParentlockFocus = true;
                     }
@@ -463,8 +488,9 @@ public abstract class WindowImpl implements Window, NEWTEventConsumer
     public static final int FLAG_HAS_PARENT             = 1 <<  8;
     public static final int FLAG_IS_UNDECORATED         = 1 <<  9;
     public static final int FLAG_IS_FULLSCREEN          = 1 << 10;
-    public static final int FLAG_IS_ALWAYSONTOP         = 1 << 11;
-    public static final int FLAG_IS_VISIBLE             = 1 << 12;
+    public static final int FLAG_IS_FULLSCREEN_SPAN     = 1 << 11;
+    public static final int FLAG_IS_ALWAYSONTOP         = 1 << 12;
+    public static final int FLAG_IS_VISIBLE             = 1 << 13;
 
     /**
      * The native implementation should invoke the referenced java state callbacks
@@ -509,6 +535,8 @@ public abstract class WindowImpl implements Window, NEWTEventConsumer
         }
         sb.append("FS_");
         sb.append(0 != ( FLAG_IS_FULLSCREEN & flags));
+        sb.append("_span_");
+        sb.append(0 != ( FLAG_IS_FULLSCREEN_SPAN & flags));
         sb.append(", ");
 
         if( 0 != ( FLAG_CHANGE_DECORATION & flags) ) {
@@ -718,6 +746,11 @@ public abstract class WindowImpl implements Window, NEWTEventConsumer
         return screen;
     }
     
+    @Override
+    public final MonitorDevice getMainMonitor() {
+        return screen.getMainMonitor(new Rectangle(getX(), getY(), getWidth(), getHeight()));
+    }
+    
     protected final void setVisibleImpl(boolean visible, int x, int y, int width, int height) {
         reconfigureWindowImpl(x, y, width, height, getReconfigureFlags(FLAG_CHANGE_VISIBILITY, visible));           
     }    
@@ -904,7 +937,7 @@ public abstract class WindowImpl implements Window, NEWTEventConsumer
                 }
 
                 if( isNativeValid() ) {
-                    screen.removeScreenModeListener(screenModeListenerImpl);
+                    screen.removeMonitorModeListener(screenModeListenerImpl);
                     closeNativeImpl();
                     final AbstractGraphicsDevice cfgADevice = config.getScreen().getDevice();
                     if( cfgADevice != screen.getDisplay().getGraphicsDevice() ) { // don't pull display's device
@@ -929,6 +962,8 @@ public abstract class WindowImpl implements Window, NEWTEventConsumer
                 setWindowHandle(0);
                 visible = false;
                 fullscreen = false;
+                fullscreenMonitors = null;
+                fullscreenUseMainMonitor = true;
                 hasFocus = false;
                 parentWindowHandle = 0;
 
@@ -1212,7 +1247,7 @@ public abstract class WindowImpl implements Window, NEWTEventConsumer
                         display.dispatchMessagesNative(); // status up2date
                         if(wasVisible) {
                             setVisibleImpl(true, x, y, width, height);
-                            ok = WindowImpl.this.waitForVisible(true, false);
+                            ok = 0 <= WindowImpl.this.waitForVisible(true, false);
                             if(ok) {
                                 ok = WindowImpl.this.waitForSize(width, height, false, TIMEOUT_NATIVEWINDOW);
                             }
@@ -1735,6 +1770,9 @@ public abstract class WindowImpl implements Window, NEWTEventConsumer
                     if(isNativeValid()) {
                         // this.x/this.y will be set by sizeChanged, triggered by windowing event system
                         reconfigureWindowImpl(x, y, getWidth(), getHeight(), getReconfigureFlags(0, isVisible()));
+                        
+                        // Wait until custom position is reached within tolerances
+                        waitForPosition(true, x, y, Window.TIMEOUT_NATIVEWINDOW);
                     } else {
                         definePosition(x, y); // set pos for createNative(..)
                     }
@@ -1758,13 +1796,25 @@ public abstract class WindowImpl implements Window, NEWTEventConsumer
     
     private class FullScreenAction implements Runnable {
         boolean fullscreen;
+        List<MonitorDevice> monitors;
+        boolean useMainMonitor;
 
-        private boolean init(boolean fullscreen) {            
+        private boolean init(boolean fullscreen, boolean useMainMonitor, List<MonitorDevice> monitors) {            
             if(isNativeValid()) {
                 this.fullscreen = fullscreen;
-                return isFullscreen() != fullscreen;
+                if( isFullscreen() != fullscreen ) {
+                    this.monitors = monitors;
+                    this.useMainMonitor = useMainMonitor;
+                    return true;
+                } else {
+                    this.monitors = null;
+                    this.useMainMonitor = true;
+                    return false;
+                }
             } else {
                 WindowImpl.this.fullscreen = fullscreen; // set current state for createNative(..)
+                WindowImpl.this.fullscreenMonitors = monitors;
+                WindowImpl.this.fullscreenUseMainMonitor = useMainMonitor;
                 return false;
             }
         }                
@@ -1777,19 +1827,32 @@ public abstract class WindowImpl implements Window, NEWTEventConsumer
                 // set current state
                 WindowImpl.this.fullscreen = fullscreen;
 
-                final ScreenMode sm = screen.getCurrentScreenMode();
                 int x,y,w,h;
                 
+                final RectangleImmutable viewport; 
+                final int fs_span_flag;
                 if(fullscreen) {
+                    if( null == monitors ) {
+                        if( useMainMonitor ) {
+                            monitors = new ArrayList<MonitorDevice>();
+                            monitors.add( getMainMonitor() );
+                        } else {
+                            monitors = getScreen().getMonitorDevices();
+                        }
+                    }
+                    fs_span_flag = monitors.size() > 1 ? FLAG_IS_FULLSCREEN_SPAN : 0 ;
+                    viewport = MonitorDevice.unionOfViewports(new Rectangle(), monitors);
                     nfs_x = getX();
                     nfs_y = getY();
                     nfs_width = getWidth();
                     nfs_height = getHeight();
-                    x = screen.getX(); 
-                    y = screen.getY();
-                    w = sm.getRotatedWidth();
-                    h = sm.getRotatedHeight();
+                    x = viewport.getX(); 
+                    y = viewport.getY();
+                    w = viewport.getWidth();
+                    h = viewport.getHeight();
                 } else {
+                    fs_span_flag = 0;
+                    viewport = null;
                     x = nfs_x;
                     y = nfs_y;
                     w = nfs_width;
@@ -1809,9 +1872,11 @@ public abstract class WindowImpl implements Window, NEWTEventConsumer
                         }
                     }
                 }
+                monitors = null; // clear references ASAP
+                useMainMonitor = true;
                 if(DEBUG_IMPLEMENTATION) {
                     System.err.println("Window fs: "+fullscreen+" "+x+"/"+y+" "+w+"x"+h+", "+isUndecorated()+
-                                       ", virtl-size: "+screen.getWidth()+"x"+screen.getHeight()+", SM "+sm.getRotatedWidth()+"x"+sm.getRotatedHeight());
+                                       ", virtl-size: "+screen.getWidth()+"x"+screen.getHeight()+", monitorsViewport "+viewport);
                 }
 
                 DisplayImpl display = (DisplayImpl) screen.getDisplay();
@@ -1831,7 +1896,7 @@ public abstract class WindowImpl implements Window, NEWTEventConsumer
                 try {
                     reconfigureWindowImpl(x, y, w, h, 
                                           getReconfigureFlags( ( ( null != parentWindowLocked ) ? FLAG_CHANGE_PARENTING : 0 ) | 
-                                                               FLAG_CHANGE_FULLSCREEN | FLAG_CHANGE_DECORATION, wasVisible) ); 
+                                                               fs_span_flag | FLAG_CHANGE_FULLSCREEN | FLAG_CHANGE_DECORATION, wasVisible) );
                 } finally {
                     if(null!=parentWindowLocked) {
                         parentWindowLocked.unlockSurface();
@@ -1860,8 +1925,17 @@ public abstract class WindowImpl implements Window, NEWTEventConsumer
 
     @Override
     public boolean setFullscreen(boolean fullscreen) {
+        return setFullscreenImpl(fullscreen, true, null);
+    }
+    
+    @Override
+    public boolean setFullscreen(List<MonitorDevice> monitors) {
+        return setFullscreenImpl(true, false, monitors);
+    }
+    
+    private boolean setFullscreenImpl(boolean fullscreen, boolean useMainMonitor, List<MonitorDevice> monitors) {
         synchronized(fullScreenAction) {
-            if( fullScreenAction.init(fullscreen) ) {               
+            if( fullScreenAction.init(fullscreen, useMainMonitor, monitors) ) {               
                 if(fullScreenAction.fsOn() && isOffscreenInstance(WindowImpl.this, parentWindow)) { 
                     // enable fullscreen on offscreen instance
                     if(null != parentWindow) {
@@ -1887,13 +1961,13 @@ public abstract class WindowImpl implements Window, NEWTEventConsumer
             return this.fullscreen;                
         }
     }
-
-    private class ScreenModeListenerImpl implements ScreenModeListener {
+    
+    private class ScreenModeListenerImpl implements MonitorModeListener {
         boolean animatorPaused = false;
 
-        public void screenModeChangeNotify(ScreenMode sm) {
+        public void monitorModeChangeNotify(MonitorEvent me) {
             if(DEBUG_IMPLEMENTATION) {
-                System.err.println("Window.screenModeChangeNotify: "+sm);
+                System.err.println("Window.screenModeChangeNotify: "+me);
             }
 
             if(null!=lifecycleHook) {
@@ -1901,9 +1975,9 @@ public abstract class WindowImpl implements Window, NEWTEventConsumer
             }
         }
 
-        public void screenModeChanged(ScreenMode sm, boolean success) {
+        public void monitorModeChanged(MonitorEvent me, boolean success) {
             if(DEBUG_IMPLEMENTATION) {
-                System.err.println("Window.screenModeChanged: "+sm+", success: "+success);
+                System.err.println("Window.screenModeChanged: "+me+", success: "+success);
             }
 
             if(success) {
@@ -1911,10 +1985,19 @@ public abstract class WindowImpl implements Window, NEWTEventConsumer
                     // Didn't pass above notify method. probably detected screen change after it happened.
                     animatorPaused = lifecycleHook.pauseRenderingAction();
                 }
-                DimensionImmutable screenSize = sm.getMonitorMode().getSurfaceSize().getResolution();
-                if ( getHeight() > screenSize.getHeight()  ||
-                     getWidth() > screenSize.getWidth() ) {
-                    setSize(screenSize.getWidth(), screenSize.getHeight());
+                if( !fullscreen ) {
+                    // FIXME: Need to take all covered monitors into account
+                    final MonitorDevice mainMonitor = getMainMonitor();
+                    final MonitorDevice eventMonitor = me.getMonitor();
+                    if( mainMonitor == eventMonitor ) {
+                        final RectangleImmutable rect = new Rectangle(getX(), getY(), getWidth(), getHeight());
+                        final RectangleImmutable viewport = mainMonitor.getViewport();
+                        final RectangleImmutable isect = viewport.intersection(rect);
+                        if ( getHeight() > isect.getHeight()  ||
+                             getWidth() > isect.getWidth() ) {
+                            setSize(isect.getWidth(), isect.getHeight());
+                        }
+                    }
                 }
             }
 
@@ -2563,14 +2646,17 @@ public abstract class WindowImpl implements Window, NEWTEventConsumer
         }
     }
 
-    private boolean waitForVisible(boolean visible, boolean failFast) {
+    /** Returns -1 if failed, otherwise remaining time until {@link #TIMEOUT_NATIVEWINDOW}, maybe zero. */
+    private long waitForVisible(boolean visible, boolean failFast) {
         return waitForVisible(visible, failFast, TIMEOUT_NATIVEWINDOW);
     }
 
-    private boolean waitForVisible(boolean visible, boolean failFast, long timeOut) {
+    /** Returns -1 if failed, otherwise remaining time until <code>timeOut</code>, maybe zero. */
+    private long waitForVisible(boolean visible, boolean failFast, long timeOut) {
         final DisplayImpl display = (DisplayImpl) screen.getDisplay();
         display.dispatchMessagesNative(); // status up2date
-        for(long sleep = timeOut; 0<sleep && this.visible != visible; sleep-=10 ) {
+        long remaining;
+        for(remaining = timeOut; 0<remaining && this.visible != visible; remaining-=10 ) {
             try { Thread.sleep(10); } catch (InterruptedException ie) {}
             display.dispatchMessagesNative(); // status up2date
         }
@@ -2582,9 +2668,11 @@ public abstract class WindowImpl implements Window, NEWTEventConsumer
                 System.err.println(msg);
                 Thread.dumpStack();
             }
-            return false;
+            return -1;
+        } else if( 0 < remaining ){
+            return remaining;
         } else {
-            return true;
+            return 0;
         }
     }
 
@@ -2648,6 +2736,47 @@ public abstract class WindowImpl implements Window, NEWTEventConsumer
     }
 
     /**
+     * Wait until position is reached within tolerances, either auto-position or custom position.
+     * <p>
+     * Since WM may not obey our positional request exactly, we allow a tolerance of 2 times insets[left/top], or 64 pixels, whatever is greater.
+     * </p>
+     */
+    private boolean waitForPosition(boolean useCustomPosition, int x, int y, long timeOut) {
+        final DisplayImpl display = (DisplayImpl) screen.getDisplay();
+        final int maxDX, maxDY;
+        {
+            final InsetsImmutable insets = getInsets();
+            maxDX = Math.max(64, insets.getLeftWidth() * 2);
+            maxDY = Math.max(64, insets.getTopHeight() * 2);
+        }
+        long remaining = timeOut;
+        boolean ok;
+        do {
+            if( useCustomPosition ) {
+                ok = Math.abs(x - getX()) <= maxDX && Math.abs(y - getY()) <= maxDY ;
+            } else {
+                ok = !autoPosition;
+            }
+            if( !ok ) {
+                try { Thread.sleep(10); } catch (InterruptedException ie) {}
+                display.dispatchMessagesNative(); // status up2date
+                remaining-=10;
+            }
+        } while ( 0<remaining && !ok );
+        if (DEBUG_IMPLEMENTATION) {
+            if( !ok ) {
+                if( useCustomPosition ) {
+                    System.err.println("Custom position "+x+"/"+y+" not reached within timeout, has "+getX()+"/"+getY()+", remaining "+remaining);
+                } else {
+                    System.err.println("Auto position not reached within timeout, has "+getX()+"/"+getY()+", autoPosition "+autoPosition+", remaining "+remaining);
+                }
+                Thread.dumpStack();
+            }
+        }
+        return ok;
+    }
+    
+    /**
      * Triggered by implementation's WM events to update the insets. 
      * 
      * @see #getInsets()
diff --git a/src/newt/classes/jogamp/newt/driver/android/ScreenDriver.java b/src/newt/classes/jogamp/newt/driver/android/ScreenDriver.java
index aee372f01..cc35ff710 100644
--- a/src/newt/classes/jogamp/newt/driver/android/ScreenDriver.java
+++ b/src/newt/classes/jogamp/newt/driver/android/ScreenDriver.java
@@ -29,8 +29,9 @@
 package jogamp.newt.driver.android;
 
 import javax.media.nativewindow.DefaultGraphicsScreen;
-import javax.media.nativewindow.util.Dimension;
-import javax.media.nativewindow.util.Point;
+
+import jogamp.newt.MonitorModeProps;
+import jogamp.newt.MonitorModeProps.Cache;
 
 import android.content.Context;
 import android.graphics.PixelFormat;
@@ -38,8 +39,8 @@ import android.util.DisplayMetrics;
 import android.view.Surface;
 import android.view.WindowManager;
 
-import com.jogamp.newt.ScreenMode;
-import com.jogamp.newt.util.ScreenModeUtil;
+import com.jogamp.newt.MonitorDevice;
+import com.jogamp.newt.MonitorMode;
 
 public class ScreenDriver extends jogamp.newt.ScreenImpl {
 
@@ -50,13 +51,36 @@ public class ScreenDriver extends jogamp.newt.ScreenImpl {
     public ScreenDriver() {
     }
 
+    @Override
     protected void createNativeImpl() {
         aScreen = new DefaultGraphicsScreen(getDisplay().getGraphicsDevice(), screen_idx);
     }
 
+    @Override
     protected void closeNativeImpl() { }
 
-    protected ScreenMode getCurrentScreenModeImpl() {
+    @Override
+    protected int validateScreenIndex(int idx) {
+        return 0; // FIXME: only one screen available ? 
+    }
+    
+    private final MonitorMode getModeImpl(final Cache cache, final android.view.Display aDisplay, DisplayMetrics outMetrics, int modeIdx, int screenSizeNRot, int nrot) {
+        final int[] props = new int[MonitorModeProps.NUM_MONITOR_MODE_PROPERTIES_ALL];
+        int i = 0;
+        props[i++] = MonitorModeProps.NUM_MONITOR_MODE_PROPERTIES_ALL;
+        i = getScreenSize(outMetrics, screenSizeNRot, props, i); // width, height
+        i = getBpp(aDisplay, props, i); // bpp 
+        props[i++] = (int) ( aDisplay.getRefreshRate() * 100.0f ); // Hz * 100
+        props[i++] = 0; // flags
+        props[i++] = modeIdx; // modeId;
+        props[i++] = nrot;
+        return MonitorModeProps.streamInMonitorMode(null, cache, props, 0);
+    }
+    
+    @Override
+    protected void collectNativeMonitorModesAndDevicesImpl(Cache cache) {
+        // FIXME: Multi Monitor Implementation missing [for newer Android version ?]
+        
         final Context ctx = jogamp.common.os.android.StaticContext.getContext();
         final WindowManager wmgr = (WindowManager) ctx.getSystemService(Context.WINDOW_SERVICE);
         final DisplayMetrics outMetrics = new DisplayMetrics();
@@ -65,27 +89,44 @@ public class ScreenDriver extends jogamp.newt.ScreenImpl {
         
         final int arot = aDisplay.getRotation();
         final int nrot = androidRotation2NewtRotation(arot);
-        int[] props = new int[ScreenModeUtil.NUM_SCREEN_MODE_PROPERTIES_ALL];
-        int offset = 1; // set later for verification of iterator
-        offset = getScreenSize(outMetrics, nrot, props, offset);
-        offset = getBpp(aDisplay, props, offset); 
-        offset = getScreenSizeMM(outMetrics, props, offset);
-        props[offset++] = (int) aDisplay.getRefreshRate();
-        props[offset++] = nrot;
-        props[offset - ScreenModeUtil.NUM_SCREEN_MODE_PROPERTIES_ALL] = offset; // count
-        return ScreenModeUtil.streamIn(props, 0);
+        
+        final int modeIdx=0; // no native modeId in use - use 0
+        MonitorMode currentMode = null;
+        for(int r=0; r<4; r++) { // for all rotations
+            final int nrot_i = r*MonitorMode.ROTATE_90;
+            MonitorMode mode = getModeImpl(cache, aDisplay, outMetrics, modeIdx, 0, nrot_i);
+            if( nrot == nrot_i ) {
+                currentMode = mode;
+            }
+        }        
+
+        final int[] props = new int[MonitorModeProps.MIN_MONITOR_DEVICE_PROPERTIES - 1 - MonitorModeProps.NUM_MONITOR_MODE_PROPERTIES];
+        int i = 0;
+        props[i++] = props.length;
+        props[i++] = 0; // crt_idx
+        i = getScreenSizeMM(outMetrics, props, i); // sizeMM
+        props[i++] = 0; // rotated viewport x
+        props[i++] = 0; // rotated viewport y
+        props[i++] = outMetrics.widthPixels; // rotated viewport width
+        props[i++] = outMetrics.heightPixels; // rotated viewport height
+        MonitorModeProps.streamInMonitorDevice(null, cache, this, cache.monitorModes, currentMode, props, 0);        
     }
-    
-    protected int validateScreenIndex(int idx) {
-        return 0; // FIXME: only one screen available ? 
+
+    @Override
+    protected MonitorMode queryCurrentMonitorModeImpl(MonitorDevice monitor) {        
+        final Context ctx = jogamp.common.os.android.StaticContext.getContext();
+        final WindowManager wmgr = (WindowManager) ctx.getSystemService(Context.WINDOW_SERVICE);
+        final DisplayMetrics outMetrics = new DisplayMetrics();
+        final android.view.Display aDisplay = wmgr.getDefaultDisplay();
+        aDisplay.getMetrics(outMetrics);
+        
+        final int currNRot = androidRotation2NewtRotation(aDisplay.getRotation());
+        return getModeImpl(null, aDisplay, outMetrics, 0, currNRot, currNRot);
     }
-    
-    protected void getVirtualScreenOriginAndSize(Point virtualOrigin, Dimension virtualSize) {
-        virtualOrigin.setX(0);
-        virtualOrigin.setY(0);
-        final ScreenMode sm = getCurrentScreenMode();
-        virtualSize.setWidth(sm.getRotatedWidth());
-        virtualSize.setHeight(sm.getRotatedHeight());
+
+    @Override
+    protected boolean setCurrentMonitorModeImpl(MonitorDevice monitor, MonitorMode mode) {
+        return false;
     }
     
     //----------------------------------------------------------------------
@@ -93,16 +134,16 @@ public class ScreenDriver extends jogamp.newt.ScreenImpl {
     //
     static int androidRotation2NewtRotation(int arot) {
         switch(arot) {
-            case Surface.ROTATION_270: return ScreenMode.ROTATE_270;
-            case Surface.ROTATION_180: return ScreenMode.ROTATE_180;
-            case Surface.ROTATION_90: return ScreenMode.ROTATE_90;
+            case Surface.ROTATION_270: return MonitorMode.ROTATE_270;
+            case Surface.ROTATION_180: return MonitorMode.ROTATE_180;
+            case Surface.ROTATION_90: return MonitorMode.ROTATE_90;
             case Surface.ROTATION_0:
         }
-        return ScreenMode.ROTATE_0;
+        return MonitorMode.ROTATE_0;
     }
     static int getScreenSize(DisplayMetrics outMetrics, int nrot, int[] props, int offset) {
         // swap width and height, since Android reflects rotated dimension, we don't
-        if (ScreenMode.ROTATE_90 == nrot || ScreenMode.ROTATE_270 == nrot) {
+        if (MonitorMode.ROTATE_90 == nrot || MonitorMode.ROTATE_270 == nrot) {
             props[offset++] = outMetrics.heightPixels;
             props[offset++] = outMetrics.widthPixels;
         } else {
diff --git a/src/newt/classes/jogamp/newt/driver/android/WindowDriver.java b/src/newt/classes/jogamp/newt/driver/android/WindowDriver.java
index 6f78a6f6b..803c7e1de 100644
--- a/src/newt/classes/jogamp/newt/driver/android/WindowDriver.java
+++ b/src/newt/classes/jogamp/newt/driver/android/WindowDriver.java
@@ -41,14 +41,14 @@ import javax.media.nativewindow.NativeWindowException;
 import javax.media.nativewindow.VisualIDHolder;
 import javax.media.nativewindow.util.Insets;
 import javax.media.nativewindow.util.Point;
+import javax.media.nativewindow.util.RectangleImmutable;
 import javax.media.opengl.GLCapabilitiesChooser;
 import javax.media.opengl.GLCapabilitiesImmutable;
 import javax.media.opengl.GLException;
 
 import com.jogamp.common.os.AndroidVersion;
 import com.jogamp.nativewindow.egl.EGLGraphicsDevice;
-import com.jogamp.newt.Screen;
-import com.jogamp.newt.ScreenMode;
+import com.jogamp.newt.MonitorDevice;
 
 import jogamp.opengl.egl.EGL;
 import jogamp.opengl.egl.EGLDisplayUtil;
@@ -285,10 +285,10 @@ public class WindowDriver extends jogamp.newt.WindowImpl implements Callback2 {
         }
         
         if( isFullscreen() ) {
-            final Screen screen = getScreen();
-            final ScreenMode sm = screen.getCurrentScreenMode();            
-            definePosition(screen.getX(), screen.getY());
-            defineSize(sm.getRotatedWidth(), sm.getRotatedHeight());
+            final MonitorDevice mainMonitor = getMainMonitor();
+            final RectangleImmutable viewport = mainMonitor.getViewport();
+            definePosition(viewport.getX(), viewport.getY());
+            defineSize(viewport.getWidth(), viewport.getHeight());
         }
         
         final boolean b;
@@ -562,7 +562,9 @@ public class WindowDriver extends jogamp.newt.WindowImpl implements Callback2 {
             surface=null;
         }
         if(getScreen().isNativeValid()) {
-            getScreen().getCurrentScreenMode(); // if ScreenMode changed .. trigger ScreenMode event
+            // if ScreenMode changed .. trigger ScreenMode event
+            final MonitorDevice mainMonitor = getMainMonitor();
+            mainMonitor.queryCurrentMode();
         }
 
         if(0>getX() || 0>getY()) {
diff --git a/src/newt/classes/jogamp/newt/driver/awt/ScreenDriver.java b/src/newt/classes/jogamp/newt/driver/awt/ScreenDriver.java
index 6b1283a00..8e584fc58 100644
--- a/src/newt/classes/jogamp/newt/driver/awt/ScreenDriver.java
+++ b/src/newt/classes/jogamp/newt/driver/awt/ScreenDriver.java
@@ -35,12 +35,15 @@ package jogamp.newt.driver.awt;
 
 import java.awt.DisplayMode;
 
+import jogamp.newt.MonitorModeProps.Cache;
 import jogamp.newt.ScreenImpl;
 import javax.media.nativewindow.util.Dimension;
 import javax.media.nativewindow.util.Point;
 
 import com.jogamp.nativewindow.awt.AWTGraphicsDevice;
 import com.jogamp.nativewindow.awt.AWTGraphicsScreen;
+import com.jogamp.newt.MonitorDevice;
+import com.jogamp.newt.MonitorMode;
 
 public class ScreenDriver extends ScreenImpl {
     public ScreenDriver() {
@@ -68,14 +71,19 @@ public class ScreenDriver extends ScreenImpl {
         return idx; // pass through ... 
     }    
 
-    protected void getVirtualScreenOriginAndSize(Point virtualOrigin, Dimension virtualSize) {
-        final DisplayMode mode = ((AWTGraphicsDevice)getDisplay().getGraphicsDevice()).getGraphicsDevice().getDisplayMode();
-        if(null != mode) {
-            virtualOrigin.setX(0);
-            virtualOrigin.setY(0);
-            virtualSize.setWidth(mode.getWidth());
-            virtualSize.setHeight(mode.getHeight());
-        }
+    @Override
+    protected void collectNativeMonitorModesAndDevicesImpl(Cache cache) { 
+        final DisplayMode mode = ((AWTGraphicsDevice)getDisplay().getGraphicsDevice()).getGraphicsDevice().getDisplayMode();        
+    }
+
+    @Override
+    protected MonitorMode queryCurrentMonitorModeImpl(MonitorDevice monitor) {        
+        return null;
+    }
+
+    @Override
+    protected boolean setCurrentMonitorModeImpl(MonitorDevice monitor, MonitorMode mode) {
+        return false;
     }
     
 }
diff --git a/src/newt/classes/jogamp/newt/driver/bcm/egl/ScreenDriver.java b/src/newt/classes/jogamp/newt/driver/bcm/egl/ScreenDriver.java
index deb2a534b..afaedffe3 100644
--- a/src/newt/classes/jogamp/newt/driver/bcm/egl/ScreenDriver.java
+++ b/src/newt/classes/jogamp/newt/driver/bcm/egl/ScreenDriver.java
@@ -35,8 +35,13 @@
 package jogamp.newt.driver.bcm.egl;
 
 import javax.media.nativewindow.DefaultGraphicsScreen;
-import javax.media.nativewindow.util.Dimension;
-import javax.media.nativewindow.util.Point;
+import javax.media.nativewindow.util.Rectangle;
+
+import jogamp.newt.MonitorModeProps;
+import jogamp.newt.ScreenImpl;
+
+import com.jogamp.newt.MonitorDevice;
+import com.jogamp.newt.MonitorMode;
 
 public class ScreenDriver extends jogamp.newt.ScreenImpl {
 
@@ -58,11 +63,48 @@ public class ScreenDriver extends jogamp.newt.ScreenImpl {
         return 0; // only one screen available 
     }
      
-    protected void getVirtualScreenOriginAndSize(Point virtualOrigin, Dimension virtualSize) {
-        virtualOrigin.setX(0);
-        virtualOrigin.setY(0);
-        virtualSize.setWidth(fixedWidth); // FIXME
-        virtualSize.setHeight(fixedHeight); // FIXME
+    @Override
+    protected final void collectNativeMonitorModesAndDevicesImpl(MonitorModeProps.Cache cache) {
+        int[] props = new int[ MonitorModeProps.NUM_MONITOR_MODE_PROPERTIES_ALL ];
+        int i = 0;
+        props[i++] = MonitorModeProps.NUM_MONITOR_MODE_PROPERTIES_ALL;
+        props[i++] = fixedWidth; // FIXME
+        props[i++] = fixedHeight; // FIXME
+        props[i++] = ScreenImpl.default_sm_bpp; // FIXME
+        props[i++] = ScreenImpl.default_sm_rate * 100; // FIXME
+        props[i++] = 0; // flags
+        props[i++] = 0; // mode_idx
+        props[i++] = 0; // rotation
+        final MonitorMode currentMode = MonitorModeProps.streamInMonitorMode(null, cache, props, 0);
+
+        props = new int[MonitorModeProps.MIN_MONITOR_DEVICE_PROPERTIES - 1 - MonitorModeProps.NUM_MONITOR_MODE_PROPERTIES];
+        i = 0;
+        props[i++] = props.length;
+        props[i++] = 0; // crt_idx
+        props[i++] = ScreenImpl.default_sm_widthmm; // FIXME
+        props[i++] = ScreenImpl.default_sm_heightmm; // FIXME
+        props[i++] = 0; // rotated viewport x
+        props[i++] = 0; // rotated viewport y
+        props[i++] = fixedWidth; // FIXME rotated viewport width
+        props[i++] = fixedHeight; // FIXME rotated viewport height
+        MonitorModeProps.streamInMonitorDevice(null, cache, this, cache.monitorModes, currentMode, props, 0);
+    }
+
+    @Override
+    protected MonitorMode queryCurrentMonitorModeImpl(final MonitorDevice monitor) {
+        return monitor.getSupportedModes().get(0);
+    }
+
+    @Override
+    protected boolean setCurrentMonitorModeImpl(final MonitorDevice monitor, final MonitorMode mode) {
+        return false;
+    }
+    
+    protected void calcVirtualScreenOriginAndSize(Rectangle vOriginSize) {
+        vOriginSize.setX(0);
+        vOriginSize.setY(0);
+        vOriginSize.setWidth(fixedWidth); // FIXME
+        vOriginSize.setHeight(fixedHeight); // FIXME
     }
     
     //----------------------------------------------------------------------
diff --git a/src/newt/classes/jogamp/newt/driver/bcm/vc/iv/ScreenDriver.java b/src/newt/classes/jogamp/newt/driver/bcm/vc/iv/ScreenDriver.java
index 787d1a1b4..f7973def8 100644
--- a/src/newt/classes/jogamp/newt/driver/bcm/vc/iv/ScreenDriver.java
+++ b/src/newt/classes/jogamp/newt/driver/bcm/vc/iv/ScreenDriver.java
@@ -29,9 +29,12 @@
 package jogamp.newt.driver.bcm.vc.iv;
 
 import javax.media.nativewindow.DefaultGraphicsScreen;
-import javax.media.nativewindow.util.Dimension;
-import javax.media.nativewindow.util.Point;
+import javax.media.nativewindow.util.Rectangle;
 
+import com.jogamp.newt.MonitorDevice;
+import com.jogamp.newt.MonitorMode;
+
+import jogamp.newt.MonitorModeProps;
 import jogamp.newt.ScreenImpl;
 
 public class ScreenDriver extends ScreenImpl {
@@ -53,13 +56,52 @@ public class ScreenDriver extends ScreenImpl {
         return 0; // only one screen available 
     }       
     
-    protected void getVirtualScreenOriginAndSize(Point virtualOrigin, Dimension virtualSize) {
-        virtualOrigin.setX(0);
-        virtualOrigin.setY(0);
-        virtualSize.setWidth(cachedWidth);
-        virtualSize.setHeight(cachedHeight);
+    @Override
+    protected final void collectNativeMonitorModesAndDevicesImpl(MonitorModeProps.Cache cache) {
+        int[] props = new int[ MonitorModeProps.NUM_MONITOR_MODE_PROPERTIES_ALL ];
+        int i = 0;
+        props[i++] = MonitorModeProps.NUM_MONITOR_MODE_PROPERTIES_ALL;
+        props[i++] = cachedWidth; // width
+        props[i++] = cachedHeight; // height
+        props[i++] = ScreenImpl.default_sm_bpp; // FIXME
+        props[i++] = ScreenImpl.default_sm_rate * 100; // FIXME
+        props[i++] = 0; // flags
+        props[i++] = 0; // mode_idx
+        props[i++] = 0; // rotation
+        final MonitorMode currentMode = MonitorModeProps.streamInMonitorMode(null, cache, props, 0);
+
+        props = new int[MonitorModeProps.MIN_MONITOR_DEVICE_PROPERTIES - 1 - MonitorModeProps.NUM_MONITOR_MODE_PROPERTIES];
+        i = 0;
+        props[i++] = props.length;
+        props[i++] = 0; // crt_idx
+        props[i++] = ScreenImpl.default_sm_widthmm; // FIXME
+        props[i++] = ScreenImpl.default_sm_heightmm; // FIXME
+        props[i++] = 0; // rotated viewport x
+        props[i++] = 0; // rotated viewport y
+        props[i++] = cachedWidth; // rotated viewport width
+        props[i++] = cachedWidth; // rotated viewport height
+        MonitorModeProps.streamInMonitorDevice(null, cache, this, cache.monitorModes, currentMode, props, 0);
+    }
+
+    @Override
+    protected MonitorMode queryCurrentMonitorModeImpl(final MonitorDevice monitor) {
+        return monitor.getSupportedModes().get(0);
+    }
+
+    @Override
+    protected boolean setCurrentMonitorModeImpl(final MonitorDevice monitor, final MonitorMode mode) {
+        return false;
+    }
+    
+    @Override
+    protected void calcVirtualScreenOriginAndSize(Rectangle vOriginSize) {
+        vOriginSize.setX(0);
+        vOriginSize.setY(0);
+        vOriginSize.setWidth(cachedWidth);
+        vOriginSize.setHeight(cachedHeight);
     }
     
+    /** Called from {@link #initNative()}. */
     protected void setScreenSize(int width, int height) {
         cachedWidth = width;
         cachedHeight = height;
diff --git a/src/newt/classes/jogamp/newt/driver/intel/gdl/ScreenDriver.java b/src/newt/classes/jogamp/newt/driver/intel/gdl/ScreenDriver.java
index 8eed14dde..4c47eb0d8 100644
--- a/src/newt/classes/jogamp/newt/driver/intel/gdl/ScreenDriver.java
+++ b/src/newt/classes/jogamp/newt/driver/intel/gdl/ScreenDriver.java
@@ -36,8 +36,13 @@ package jogamp.newt.driver.intel.gdl;
 
 import javax.media.nativewindow.AbstractGraphicsDevice;
 import javax.media.nativewindow.DefaultGraphicsScreen;
-import javax.media.nativewindow.util.Dimension;
-import javax.media.nativewindow.util.Point;
+import javax.media.nativewindow.util.Rectangle;
+
+import jogamp.newt.MonitorModeProps;
+import jogamp.newt.ScreenImpl;
+
+import com.jogamp.newt.MonitorDevice;
+import com.jogamp.newt.MonitorMode;
 
 public class ScreenDriver extends jogamp.newt.ScreenImpl {
 
@@ -60,11 +65,48 @@ public class ScreenDriver extends jogamp.newt.ScreenImpl {
         return 0; // only one screen available 
     }
         
-    protected void getVirtualScreenOriginAndSize(Point virtualOrigin, Dimension virtualSize) {
-        virtualOrigin.setX(0);
-        virtualOrigin.setY(0);
-        virtualSize.setWidth(cachedWidth);
-        virtualSize.setHeight(cachedHeight);
+    @Override
+    protected final void collectNativeMonitorModesAndDevicesImpl(MonitorModeProps.Cache cache) {
+        int[] props = new int[ MonitorModeProps.NUM_MONITOR_MODE_PROPERTIES_ALL ];
+        int i = 0;
+        props[i++] = MonitorModeProps.NUM_MONITOR_MODE_PROPERTIES_ALL;
+        props[i++] = cachedWidth; // width
+        props[i++] = cachedHeight; // height
+        props[i++] = ScreenImpl.default_sm_bpp; // FIXME
+        props[i++] = ScreenImpl.default_sm_rate * 100; // FIXME
+        props[i++] = 0; // flags
+        props[i++] = 0; // mode_idx
+        props[i++] = 0; // rotation
+        final MonitorMode currentMode = MonitorModeProps.streamInMonitorMode(null, cache, props, 0);
+
+        props = new int[MonitorModeProps.MIN_MONITOR_DEVICE_PROPERTIES - 1 - MonitorModeProps.NUM_MONITOR_MODE_PROPERTIES];
+        i = 0;
+        props[i++] = props.length;
+        props[i++] = 0; // crt_idx
+        props[i++] = ScreenImpl.default_sm_widthmm; // FIXME
+        props[i++] = ScreenImpl.default_sm_heightmm; // FIXME
+        props[i++] = 0; // rotated viewport x
+        props[i++] = 0; // rotated viewport y
+        props[i++] = cachedWidth; // rotated viewport width
+        props[i++] = cachedWidth; // rotated viewport height
+        MonitorModeProps.streamInMonitorDevice(null, cache, this, cache.monitorModes, currentMode, props, 0);
+    }
+
+    @Override
+    protected MonitorMode queryCurrentMonitorModeImpl(final MonitorDevice monitor) {
+        return monitor.getSupportedModes().get(0);
+    }
+
+    @Override
+    protected boolean setCurrentMonitorModeImpl(final MonitorDevice monitor, final MonitorMode mode) {
+        return false;
+    }
+    
+    protected void calcVirtualScreenOriginAndSize(Rectangle vOriginSize) {
+        vOriginSize.setX(0);
+        vOriginSize.setY(0);
+        vOriginSize.setWidth(cachedWidth);
+        vOriginSize.setHeight(cachedHeight);
     }
     
     //----------------------------------------------------------------------
diff --git a/src/newt/classes/jogamp/newt/driver/kd/ScreenDriver.java b/src/newt/classes/jogamp/newt/driver/kd/ScreenDriver.java
index 656bcf5c9..dc87c3c08 100644
--- a/src/newt/classes/jogamp/newt/driver/kd/ScreenDriver.java
+++ b/src/newt/classes/jogamp/newt/driver/kd/ScreenDriver.java
@@ -35,9 +35,12 @@
 package jogamp.newt.driver.kd;
 
 import javax.media.nativewindow.DefaultGraphicsScreen;
-import javax.media.nativewindow.util.Dimension;
-import javax.media.nativewindow.util.Point;
+import javax.media.nativewindow.util.Rectangle;
 
+import com.jogamp.newt.MonitorDevice;
+import com.jogamp.newt.MonitorMode;
+
+import jogamp.newt.MonitorModeProps;
 import jogamp.newt.ScreenImpl;
 
 public class ScreenDriver extends ScreenImpl {
@@ -58,11 +61,48 @@ public class ScreenDriver extends ScreenImpl {
         return 0; // only one screen available 
     }       
     
-    protected void getVirtualScreenOriginAndSize(Point virtualOrigin, Dimension virtualSize) {
-        virtualOrigin.setX(0);
-        virtualOrigin.setY(0);
-        virtualSize.setWidth(cachedWidth);
-        virtualSize.setHeight(cachedHeight);
+    @Override
+    protected final void collectNativeMonitorModesAndDevicesImpl(MonitorModeProps.Cache cache) {
+        int[] props = new int[ MonitorModeProps.NUM_MONITOR_MODE_PROPERTIES_ALL ];
+        int i = 0;
+        props[i++] = MonitorModeProps.NUM_MONITOR_MODE_PROPERTIES_ALL;
+        props[i++] = cachedWidth; // width
+        props[i++] = cachedHeight; // height
+        props[i++] = ScreenImpl.default_sm_bpp; // FIXME
+        props[i++] = ScreenImpl.default_sm_rate * 100; // FIXME
+        props[i++] = 0; // flags
+        props[i++] = 0; // mode_idx
+        props[i++] = 0; // rotation
+        final MonitorMode currentMode = MonitorModeProps.streamInMonitorMode(null, cache, props, 0);
+
+        props = new int[MonitorModeProps.MIN_MONITOR_DEVICE_PROPERTIES - 1 - MonitorModeProps.NUM_MONITOR_MODE_PROPERTIES];
+        i = 0;
+        props[i++] = props.length;
+        props[i++] = 0; // crt_idx
+        props[i++] = ScreenImpl.default_sm_widthmm; // FIXME
+        props[i++] = ScreenImpl.default_sm_heightmm; // FIXME
+        props[i++] = 0; // rotated viewport x
+        props[i++] = 0; // rotated viewport y
+        props[i++] = cachedWidth; // rotated viewport width
+        props[i++] = cachedWidth; // rotated viewport height
+        MonitorModeProps.streamInMonitorDevice(null, cache, this, cache.monitorModes, currentMode, props, 0);
+    }
+
+    @Override
+    protected MonitorMode queryCurrentMonitorModeImpl(final MonitorDevice monitor) {
+        return monitor.getSupportedModes().get(0);
+    }
+
+    @Override
+    protected boolean setCurrentMonitorModeImpl(final MonitorDevice monitor, final MonitorMode mode) {
+        return false;
+    }
+    
+    protected void calcVirtualScreenOriginAndSize(Rectangle vOriginSize) {
+        vOriginSize.setX(0);
+        vOriginSize.setY(0);
+        vOriginSize.setWidth(cachedWidth);
+        vOriginSize.setHeight(cachedHeight);
     }
     
     protected void sizeChanged(int w, int h) {
diff --git a/src/newt/classes/jogamp/newt/driver/macosx/ScreenDriver.java b/src/newt/classes/jogamp/newt/driver/macosx/ScreenDriver.java
index 24e60ba0a..a3bb26731 100644
--- a/src/newt/classes/jogamp/newt/driver/macosx/ScreenDriver.java
+++ b/src/newt/classes/jogamp/newt/driver/macosx/ScreenDriver.java
@@ -34,28 +34,19 @@
 
 package jogamp.newt.driver.macosx;
 
-import java.util.List;
-
 import javax.media.nativewindow.DefaultGraphicsScreen;
-import javax.media.nativewindow.util.Dimension;
-import javax.media.nativewindow.util.DimensionImmutable;
-import javax.media.nativewindow.util.Point;
 
+import jogamp.newt.MonitorModeProps;
 import jogamp.newt.ScreenImpl;
 
-import com.jogamp.common.util.IntObjectHashMap;
-import com.jogamp.newt.ScreenMode;
-import com.jogamp.newt.util.ScreenModeUtil;
+import com.jogamp.common.util.ArrayHashSet;
+import com.jogamp.newt.MonitorDevice;
+import com.jogamp.newt.MonitorMode;
 
 public class ScreenDriver extends ScreenImpl {
     
-    // caching native CGDisplayScreenSize() results, since it's ridiculous slow (~6 ms each call)
-    private static IntObjectHashMap/*<int, DimensionImmutable>*/ scrnIdx2Dimension;
-    
     static {
         DisplayDriver.initSingleton();
-        scrnIdx2Dimension = new IntObjectHashMap();
-        scrnIdx2Dimension.setKeyNotFoundValue(null);
     }
 
     public ScreenDriver() {
@@ -67,77 +58,67 @@ public class ScreenDriver extends ScreenImpl {
 
     protected void closeNativeImpl() { }
 
-    private static native int getWidthImpl0(int scrn_idx);
-    private static native int getHeightImpl0(int scrn_idx);
-    
-    private int[] getScreenModeIdx(int idx) {
-        // caching native CGDisplayScreenSize() results, since it's ridiculous slow (~6 ms each call)
-        DimensionImmutable dim = (DimensionImmutable) scrnIdx2Dimension.get(screen_idx);
-        if(null == dim) {
-            int[] res = getScreenSizeMM0(screen_idx);
-            if(null == res || 0 == res.length) {
-                return null;
-            }
-            dim = new Dimension(res[0], res[1]);
-            scrnIdx2Dimension.put(screen_idx, dim);
-        }
-
-        int[] modeProps = getScreenMode0(screen_idx, idx, dim.getWidth(), dim.getHeight());
-        if (null == modeProps || 0 == modeProps.length) {
-            return null;
+    private MonitorMode getMonitorModeImpl(MonitorModeProps.Cache cache, int crt_idx, int mode_idx) {
+        final int[] modeProps = getMonitorMode0(crt_idx, mode_idx);
+        final MonitorMode res;
+        if (null == modeProps  || 0 >= modeProps.length) {
+            res = null;
+        } else {
+            res = MonitorModeProps.streamInMonitorMode(null, cache, modeProps, 0);
         }
-        if(modeProps.length < ScreenModeUtil.NUM_SCREEN_MODE_PROPERTIES_ALL) {
-            throw new RuntimeException("properties array too short, should be >= "+ScreenModeUtil.NUM_SCREEN_MODE_PROPERTIES_ALL+", is "+modeProps.length);
-        }
-        return modeProps;
+        return res;
     }
-
-    private int nativeModeIdx;
     
-    protected int[] getScreenModeFirstImpl() {
-        nativeModeIdx = 0;
-        return getScreenModeNextImpl();
-    }
-
-    protected int[] getScreenModeNextImpl() {
-        int[] modeProps = getScreenModeIdx(nativeModeIdx);
-        if (null != modeProps && 0 < modeProps.length) {
-            nativeModeIdx++;
-            return modeProps;
-        }
-        return null;
+    @Override
+    protected final void collectNativeMonitorModesAndDevicesImpl(MonitorModeProps.Cache cache) {
+        int crtIdx = 0;
+        int modeIdx = 0;
+        ArrayHashSet<MonitorMode> supportedModes = new ArrayHashSet<MonitorMode>();
+        do {
+            final MonitorMode mode = getMonitorModeImpl(cache, crtIdx, modeIdx);
+            if( null != mode ) {
+                supportedModes.getOrAdd(mode);
+                // next mode on same monitor
+                modeIdx++;
+            } else if( 0 < modeIdx ) {
+                // end of monitor modes - got at least one mode
+                final MonitorMode currentMode = getMonitorModeImpl(cache, crtIdx, -1);
+                if ( null == currentMode ) {
+                    throw new InternalError("Could not gather current mode of device "+crtIdx+", but gathered "+modeIdx+" modes");
+                }                
+                final int[] monitorProps = getMonitorProps0(crtIdx);
+                if ( null == monitorProps ) {
+                    throw new InternalError("Could not gather device "+crtIdx+", but gathered "+modeIdx+" modes");
+                }                
+                // merge monitor-props + supported modes
+                MonitorModeProps.streamInMonitorDevice(null, cache, this, supportedModes, currentMode, monitorProps, 0);
+                
+                // next monitor, 1st mode
+                supportedModes= new ArrayHashSet<MonitorMode>();                
+                crtIdx++;
+                modeIdx=0;
+            } else {
+                // end of monitor
+                break;
+            }
+        } while ( true );
     }
 
-    protected ScreenMode getCurrentScreenModeImpl() {
-        int[] modeProps = getScreenModeIdx(-1);
-        if (null != modeProps && 0 < modeProps.length) {
-            return ScreenModeUtil.streamIn(modeProps, 0);
-        }
-        return null;
+    @Override
+    protected MonitorMode queryCurrentMonitorModeImpl(MonitorDevice monitor) {
+        return getMonitorModeImpl(null, monitor.getId(), -1);
     }
     
-    protected boolean setCurrentScreenModeImpl(final ScreenMode screenMode) {
-        final List<ScreenMode> screenModes = this.getScreenModesOrig();
-        final int screenModeIdx = screenModes.indexOf(screenMode);
-        if(0>screenModeIdx) {
-            throw new RuntimeException("ScreenMode not element of ScreenMode list: "+screenMode);
-        }
-        final int nativeModeIdx = getScreenModesIdx2NativeIdx().get(screenModeIdx);
-        return setScreenMode0(screen_idx, nativeModeIdx);
+    @Override
+    protected boolean setCurrentMonitorModeImpl(MonitorDevice monitor, MonitorMode mode)  {
+        return setMonitorMode0(monitor.getId(), mode.getId(), mode.getRotation());
     }
     
     protected int validateScreenIndex(int idx) {
-        return idx; 
+        return 0; // big-desktop w/ multiple monitor attached, only one screen available 
     }
         
-    protected void getVirtualScreenOriginAndSize(Point virtualOrigin, Dimension virtualSize) {
-        virtualOrigin.setX(0);
-        virtualOrigin.setY(0);
-        virtualSize.setWidth(getWidthImpl0(screen_idx));
-        virtualSize.setHeight(getHeightImpl0(screen_idx));
-    }
-
-    private native int[] getScreenSizeMM0(int screen_idx);
-    private native int[] getScreenMode0(int screen_index, int mode_index, int widthMM, int heightMM);
-    private native boolean setScreenMode0(int screen_index, int mode_idx);
+    private native int[] getMonitorProps0(int crt_idx);
+    private native int[] getMonitorMode0(int crt_index, int mode_idx);
+    private native boolean setMonitorMode0(int crt_index, int nativeId, int rot);
 }
diff --git a/src/newt/classes/jogamp/newt/driver/macosx/WindowDriver.java b/src/newt/classes/jogamp/newt/driver/macosx/WindowDriver.java
index bb72350e3..6370782df 100644
--- a/src/newt/classes/jogamp/newt/driver/macosx/WindowDriver.java
+++ b/src/newt/classes/jogamp/newt/driver/macosx/WindowDriver.java
@@ -478,7 +478,7 @@ public class WindowDriver extends WindowImpl implements MutableSurface, DriverCl
                 if( 0 != surfaceHandle ) {
                     throw new NativeWindowException("Internal Error - create w/o window, but has Newt NSView");
                 }                
-                surfaceHandle = createView0(pS.getX(), pS.getY(), width, height, fullscreen, getScreen().getIndex());
+                surfaceHandle = createView0(pS.getX(), pS.getY(), width, height, fullscreen);
                 if( 0 == surfaceHandle ) {
                     throw new NativeWindowException("Could not create native view "+Thread.currentThread().getName()+" "+this);
                 }
@@ -487,7 +487,7 @@ public class WindowDriver extends WindowImpl implements MutableSurface, DriverCl
             final long newWin = createWindow0( pS.getX(), pS.getY(), width, height, fullscreen, 
                                                ( isUndecorated() || offscreenInstance ) ? NSBorderlessWindowMask :
                                                NSTitledWindowMask|NSClosableWindowMask|NSMiniaturizableWindowMask|NSResizableWindowMask,
-                                               NSBackingStoreBuffered, getScreen().getIndex(), surfaceHandle);
+                                               NSBackingStoreBuffered, surfaceHandle);
             if ( newWin == 0 ) {
                 throw new NativeWindowException("Could not create native window "+Thread.currentThread().getName()+" "+this);
             }
@@ -497,9 +497,8 @@ public class WindowDriver extends WindowImpl implements MutableSurface, DriverCl
             // Non blocking initialization on main-thread!                
             OSXUtil.RunOnMainThread(false, new Runnable() {
                 public void run() {
-                    initWindow0( parentWin, newWin,
-                                 pS.getX(), pS.getY(), width, height,
-                                 isOpaque, fullscreen, visible && !offscreenInstance, getScreen().getIndex(), surfaceHandle);
+                    initWindow0( parentWin, newWin, pS.getX(), pS.getY(), width, height,
+                                 isOpaque, fullscreen, visible && !offscreenInstance, surfaceHandle);
                     if( offscreenInstance ) {
                         orderOut0(0!=parentWin ? parentWin : newWin);
                     } else {
@@ -514,11 +513,11 @@ public class WindowDriver extends WindowImpl implements MutableSurface, DriverCl
     }
     
     protected static native boolean initIDs0();
-    private native long createView0(int x, int y, int w, int h, boolean fullscreen, int screen_idx);
-    private native long createWindow0(int x, int y, int w, int h, boolean fullscreen, int windowStyle, int backingStoreType, int screen_idx, long view);
+    private native long createView0(int x, int y, int w, int h, boolean fullscreen);
+    private native long createWindow0(int x, int y, int w, int h, boolean fullscreen, int windowStyle, int backingStoreType, long view);
     /** Must be called on Main-Thread */
     private native void initWindow0(long parentWindow, long window, int x, int y, int w, int h,
-                                    boolean opaque, boolean fullscreen, boolean visible, int screen_idx, long view);
+                                    boolean opaque, boolean fullscreen, boolean visible, long view);
     private native boolean lockSurface0(long window, long view);
     private native boolean unlockSurface0(long window, long view);
     /** Must be called on Main-Thread */
diff --git a/src/newt/classes/jogamp/newt/driver/windows/ScreenDriver.java b/src/newt/classes/jogamp/newt/driver/windows/ScreenDriver.java
index 948b29460..342829691 100644
--- a/src/newt/classes/jogamp/newt/driver/windows/ScreenDriver.java
+++ b/src/newt/classes/jogamp/newt/driver/windows/ScreenDriver.java
@@ -34,91 +34,143 @@
 package jogamp.newt.driver.windows;
 
 import javax.media.nativewindow.DefaultGraphicsScreen;
-import javax.media.nativewindow.util.Dimension;
-import javax.media.nativewindow.util.Point;
+import javax.media.nativewindow.util.Rectangle;
 
+import jogamp.newt.MonitorModeProps;
 import jogamp.newt.ScreenImpl;
 
-import com.jogamp.newt.ScreenMode;
-import com.jogamp.newt.util.ScreenModeUtil;
+import com.jogamp.common.util.ArrayHashSet;
+import com.jogamp.newt.MonitorDevice;
+import com.jogamp.newt.MonitorMode;
+import com.jogamp.newt.Screen;
 
 public class ScreenDriver extends ScreenImpl {
 
     static {
         DisplayDriver.initSingleton();
+        if( Screen.DEBUG ) {
+            dumpMonitorInfo0();
+        }
     }
 
     public ScreenDriver() {
     }
 
+    @Override
     protected void createNativeImpl() {
         aScreen = new DefaultGraphicsScreen(getDisplay().getGraphicsDevice(), screen_idx);
     }
     
+    @Override
     protected void closeNativeImpl() {
     }
 
-    private int[] getScreenModeIdx(int idx) {
-        int[] modeProps = getScreenMode0(screen_idx, idx);
-        if (null == modeProps || 0 == modeProps.length) {
+    private final String getAdapterName(int crt_idx) {
+        return getAdapterName0(crt_idx);
+    }
+    private final String getActiveMonitorName(String adapterName, int monitor_idx) {
+        return getActiveMonitorName0(adapterName, monitor_idx);
+    }
+    
+    private final MonitorMode getMonitorModeImpl(MonitorModeProps.Cache cache, String adapterName, int crtModeIdx) {
+        if( null == adapterName ) {
             return null;
         }
-        if(modeProps.length < ScreenModeUtil.NUM_SCREEN_MODE_PROPERTIES_ALL) {
-            throw new RuntimeException("properties array too short, should be >= "+ScreenModeUtil.NUM_SCREEN_MODE_PROPERTIES_ALL+", is "+modeProps.length);
+        final String activeMonitorName = getActiveMonitorName(adapterName, 0);
+        final int[] modeProps = null != activeMonitorName ? getMonitorMode0(adapterName, crtModeIdx) : null;
+        if ( null == modeProps || 0 >= modeProps.length) {
+            return null;
         }
-        return modeProps;
+        return MonitorModeProps.streamInMonitorMode(null, cache, modeProps, 0);
     }
 
-    private int nativeModeIdx;
-
-    protected int[] getScreenModeFirstImpl() {
-        nativeModeIdx = 0;
-        return getScreenModeNextImpl();
-    }
-
-    protected int[] getScreenModeNextImpl() {
-        int[] modeProps = getScreenModeIdx(nativeModeIdx);
-        if (null != modeProps && 0 < modeProps.length) {
-            nativeModeIdx++;
-            return modeProps;
+    @Override
+    protected void collectNativeMonitorModesAndDevicesImpl(MonitorModeProps.Cache cache) {
+        int crtIdx = 0;
+        ArrayHashSet<MonitorMode> supportedModes = new ArrayHashSet<MonitorMode>();
+        String adapterName = getAdapterName(crtIdx);
+        while( null != adapterName ) {
+            int crtModeIdx = 0;
+            MonitorMode mode;
+            do {
+                mode = getMonitorModeImpl(cache, adapterName, crtModeIdx);
+                if( null != mode ) {
+                    supportedModes.getOrAdd(mode);
+                    // next mode on same monitor
+                    crtModeIdx++;
+                }
+            } while( null != mode);
+            if( 0 < crtModeIdx ) {
+                // has at least one mode -> add device
+                final MonitorMode currentMode = getMonitorModeImpl(cache, adapterName, -1);
+                if ( null != currentMode ) { // enabled
+                    final int[] monitorProps = getMonitorDevice0(adapterName, crtIdx);
+                    // merge monitor-props + supported modes
+                    MonitorModeProps.streamInMonitorDevice(null, cache, this, supportedModes, currentMode, monitorProps, 0);
+                    
+                    // next monitor, 1st mode
+                    supportedModes= new ArrayHashSet<MonitorMode>();
+                }
+            }
+            crtIdx++;
+            adapterName = getAdapterName(crtIdx);
         }
-        return null;
     }
-
-    protected ScreenMode getCurrentScreenModeImpl() {
-        int[] modeProps = getScreenModeIdx(-1);
-        if (null != modeProps && 0 < modeProps.length) {
-            return ScreenModeUtil.streamIn(modeProps, 0);
+    
+    @Override
+    protected Rectangle getNativeMonitorDeviceViewportImpl(MonitorDevice monitor) {
+        final String adapterName = getAdapterName(monitor.getId());
+        if( null != adapterName ) {
+            final String activeMonitorName = getActiveMonitorName(adapterName, 0);
+            if( null != activeMonitorName ) {
+                final int[] monitorProps = getMonitorDevice0(adapterName, monitor.getId());
+                int offset = MonitorModeProps.IDX_MONITOR_DEVICE_VIEWPORT;
+                return new Rectangle(monitorProps[offset++], monitorProps[offset++], monitorProps[offset++], monitorProps[offset++]);
+            }
         }
         return null;
     }
 
-    protected boolean setCurrentScreenModeImpl(ScreenMode sm) {
-        return setScreenMode0(screen_idx, 
-                              sm.getMonitorMode().getSurfaceSize().getResolution().getWidth(),
-                              sm.getMonitorMode().getSurfaceSize().getResolution().getHeight(),
-                              sm.getMonitorMode().getSurfaceSize().getBitsPerPixel(),
-                              sm.getMonitorMode().getRefreshRate(),
-                              sm.getRotation());
+    @Override
+    protected MonitorMode queryCurrentMonitorModeImpl(MonitorDevice monitor) {
+        return getMonitorModeImpl(null, getAdapterName(monitor.getId()), -1);
+    }
+    
+    @Override
+    protected boolean setCurrentMonitorModeImpl(MonitorDevice monitor, MonitorMode mode)  {
+        return setMonitorMode0(monitor.getId(),
+                               -1, -1, // no fixed position!
+                               mode.getSurfaceSize().getResolution().getWidth(),
+                               mode.getSurfaceSize().getResolution().getHeight(),
+                               mode.getSurfaceSize().getBitsPerPixel(),
+                               (int)mode.getRefreshRate(), // simply cut-off, orig is int
+                               mode.getFlags(),
+                               mode.getRotation());
     }
 
+    @Override
     protected int validateScreenIndex(int idx) {
-        return 0; // big-desktop, only one screen available 
+        return 0; // big-desktop w/ multiple monitor attached, only one screen available 
     }
         
-    protected void getVirtualScreenOriginAndSize(Point virtualOrigin, Dimension virtualSize) {
-        virtualOrigin.setX(getOriginX0(screen_idx));
-        virtualOrigin.setY(getOriginY0(screen_idx));
-        virtualSize.setWidth(getWidthImpl0(screen_idx));
-        virtualSize.setHeight(getHeightImpl0(screen_idx));
+    @Override
+    protected void calcVirtualScreenOriginAndSize(Rectangle vOriginSize) {
+        vOriginSize.setX(getVirtualOriginX0());
+        vOriginSize.setY(getVirtualOriginY0());
+        vOriginSize.setWidth(getVirtualWidthImpl0());
+        vOriginSize.setHeight(getVirtualHeightImpl0());
     }
     
     // Native calls
-    private native int getOriginX0(int screen_idx);
-    private native int getOriginY0(int screen_idx);
-    private native int getWidthImpl0(int scrn_idx);
-    private native int getHeightImpl0(int scrn_idx);
+    private native int getVirtualOriginX0();
+    private native int getVirtualOriginY0();
+    private native int getVirtualWidthImpl0();
+    private native int getVirtualHeightImpl0();
 
-    private native int[] getScreenMode0(int screen_index, int mode_index);
-    private native boolean setScreenMode0(int screen_index, int width, int height, int bits, int freq, int rot);
+    private static native void dumpMonitorInfo0();
+    private native String getAdapterName0(int crt_index);
+    private native String getActiveMonitorName0(String adapterName, int crtModeIdx);
+    private native int[] getMonitorMode0(String adapterName, int crtModeIdx);
+    private native int[] getMonitorDevice0(String adapterName, int monitor_index);
+    private native boolean setMonitorMode0(int monitor_index, int x, int y, int width, int height, int bits, int freq, int flags, int rot);
 }
diff --git a/src/newt/classes/jogamp/newt/driver/x11/RandR.java b/src/newt/classes/jogamp/newt/driver/x11/RandR.java
index 485d976ec..c569e5fd8 100644
--- a/src/newt/classes/jogamp/newt/driver/x11/RandR.java
+++ b/src/newt/classes/jogamp/newt/driver/x11/RandR.java
@@ -27,13 +27,50 @@
  */
 package jogamp.newt.driver.x11;
 
-import com.jogamp.newt.ScreenMode;
+import java.util.List;
+
+import jogamp.newt.MonitorModeProps;
+
+import com.jogamp.newt.MonitorDevice;
+import com.jogamp.newt.MonitorMode;
 
 public interface RandR {
 
-    int[] getScreenModeFirstImpl(final long dpy, final int screen_idx);
-    int[] getScreenModeNextImpl(final long dpy, final int screen_idx);
-    ScreenMode getCurrentScreenModeImpl(final long dpy, final int screen_idx);
-    boolean setCurrentScreenModeImpl(final long dpy, final int screen_idx, final ScreenMode screenMode, final int screenModeIdx, final int resolutionIdx);
+    void dumpInfo(final long dpy, final int screen_idx);
+    
+    /**
+     * Encapsulate initial device query allowing caching of internal data structures. 
+     * Methods covered:
+     * <ul> 
+     *   <li>{@link #getMonitorDeviceCount(long, ScreenDriver)}</li>
+     *   <li>{@link #getAvailableRotations(long, ScreenDriver, int)}</li>
+     *   <li>{@link #getMonitorModeProps(long, ScreenDriver, int)}</li>
+     *   <li>{@link #getCurrentMonitorModeProps(long, ScreenDriver, int)</li>
+     *   <li>{@link #getMonitorDeviceProps(long, ScreenDriver, List, int, MonitorMode)}</li>
+     * </ul>
+     * <p>
+     * Above methods may be called w/o begin/end, in which case no 
+     * internal data structures can be cached:
+     * </p>
+     * @param dpy TODO
+     * @param screen TODO
+     * @return TODO
+     */
+    boolean beginInitialQuery(long dpy, ScreenDriver screen);
+    void endInitialQuery(long dpy, ScreenDriver screen);
     
+    int getMonitorDeviceCount(final long dpy, final ScreenDriver screen);
+    int[] getAvailableRotations(final long dpy, final ScreenDriver screen, final int crt_idx);
+    /**
+     * 
+     * @param dpy
+     * @param screen
+     * @param mode_idx w/o indexing rotation
+     * @return props w/o actual rotation
+     */
+    int[] getMonitorModeProps(final long dpy, final ScreenDriver screen, final int mode_idx);
+    int[] getMonitorDeviceProps(final long dpy, final ScreenDriver screen, MonitorModeProps.Cache cache, final int crt_idx);
+    int[] getMonitorDeviceViewport(final long dpy, final ScreenDriver screen, final int crt_idx);
+    int[] getCurrentMonitorModeProps(final long dpy, final ScreenDriver screen, final int crt_idx);
+    boolean setCurrentMonitorMode(final long dpy, final ScreenDriver screen, MonitorDevice monitor, final MonitorMode mode);    
 }
diff --git a/src/newt/classes/jogamp/newt/driver/x11/RandR11.java b/src/newt/classes/jogamp/newt/driver/x11/RandR11.java
index ee67bd304..a938b4064 100644
--- a/src/newt/classes/jogamp/newt/driver/x11/RandR11.java
+++ b/src/newt/classes/jogamp/newt/driver/x11/RandR11.java
@@ -27,139 +27,257 @@
  */
 package jogamp.newt.driver.x11;
 
+import jogamp.newt.MonitorModeProps;
 import jogamp.newt.ScreenImpl;
 
-import com.jogamp.newt.ScreenMode;
-import com.jogamp.newt.util.ScreenModeUtil;
+import com.jogamp.common.util.VersionNumber;
+import com.jogamp.newt.MonitorDevice;
+import com.jogamp.newt.MonitorMode;
 
 public class RandR11 implements RandR {
     private static final boolean DEBUG = ScreenDriver.DEBUG;
     
-    private int[] nrotations;
-    private int nrotation_index;
-    private int nres_number;
-    private int nres_index;
-    private int[] nrates;
-    private int nrate_index;
-    private int nmode_number;
+    public static VersionNumber version = new VersionNumber(1, 1, 0);
+    
+    public static RandR11 createInstance(VersionNumber rAndRVersion) {
+        if( rAndRVersion.compareTo(version) >= 0 ) {
+            return new RandR11();
+        }
+        return null;
+    }    
+    private RandR11() {        
+    }
+    
+    @Override
+    public void dumpInfo(final long dpy, final int screen_idx) {
+        // NOP
+    }
+    
+    private int widthMM=0, heightMM=0;
+    private int modeCount = 0;
+    private int resolutionCount = 0;
+    private int[][] nrates = null; // [nres_number][nrate_number]
+    private int[] idx_rate = null, idx_res = null;
     
     @Override
-    public int[] getScreenModeFirstImpl(final long dpy, final int screen_idx) {
+    public boolean beginInitialQuery(long dpy, ScreenDriver screen) {
         // initialize iterators and static data
-        nrotations = getAvailableScreenModeRotations0(dpy, screen_idx);
-        if(null==nrotations || 0==nrotations.length) {
-            return null;
+        final int screen_idx = screen.getIndex();
+        resolutionCount = getNumScreenResolutions0(dpy, screen_idx);
+        if(0==resolutionCount) {
+            endInitialQuery(dpy, screen);
+            return false;
         }
-        nrotation_index = 0;
 
-        nres_number = getNumScreenModeResolutions0(dpy, screen_idx);
-        if(0==nres_number) {
-            return null;
+        nrates = new int[resolutionCount][];
+        for(int i=0; i<resolutionCount; i++) {
+            nrates[i] = getScreenRates0(dpy, screen_idx, i);
+            if(null==nrates[i] || 0==nrates[i].length) {
+                endInitialQuery(dpy, screen);
+                return false;
+            }
         }
-        nres_index = 0;
+        
+        for(int nresIdx=0; nresIdx < resolutionCount; nresIdx++) {
+            modeCount += nrates[nresIdx].length;
+        }
+        
+        idx_rate = new int[modeCount];
+        idx_res = new int[modeCount];
 
-        nrates = getScreenModeRates0(dpy, screen_idx, nres_index);
-        if(null==nrates || 0==nrates.length) {
+        int modeIdx=0;
+        for(int nresIdx=0; nresIdx < resolutionCount; nresIdx++) {
+            for(int nrateIdx=0; nrateIdx < nrates[nresIdx].length; nrateIdx++) {
+                idx_rate[modeIdx] = nrateIdx;
+                idx_res[modeIdx] = nresIdx;
+                modeIdx++;
+            }
+        }
+        return true;
+    }
+    
+    @Override
+    public void endInitialQuery(long dpy, ScreenDriver screen) {
+        idx_rate=null;
+        idx_res=null;            
+        nrates=null;        
+    }
+    
+    @Override
+    public int getMonitorDeviceCount(final long dpy, final ScreenDriver screen) {
+        return 1;
+    }
+    
+    @Override
+    public int[] getAvailableRotations(final long dpy, final ScreenDriver screen, final int crt_idx) {
+        if( 0 < crt_idx ) {
+            // RandR11 only supports 1 CRT 
             return null;
         }
-        nrate_index = 0;
-
-        nmode_number = 0;
-
-        return getScreenModeNextImpl(dpy, screen_idx);
+        final int screen_idx = screen.getIndex();
+        final int[] availRotations = getAvailableScreenRotations0(dpy, screen_idx);
+        if(null==availRotations || 0==availRotations.length) {
+            return null;
+        }
+        return availRotations;
     }
-
+    
     @Override
-    public int[] getScreenModeNextImpl(final long dpy, final int screen_idx) {
-        /**
-        System.err.println("******** mode: "+nmode_number);
-        System.err.println("rot  "+nrotation_index);
-        System.err.println("rate "+nrate_index);
-        System.err.println("res  "+nres_index); */
-
-        int[] res = getScreenModeResolution0(dpy, screen_idx, nres_index);
+    public int[] getMonitorModeProps(final long dpy, final ScreenDriver screen, final int mode_idx) {
+        if( mode_idx >= modeCount ) {
+            return null;
+        }        
+        final int screen_idx = screen.getIndex();
+        
+        final int nres_index = idx_res[mode_idx];
+        final int nrate_index = idx_rate[mode_idx];
+        
+        final int[] res = getScreenResolution0(dpy, screen_idx, nres_index);
         if(null==res || 0==res.length) {
             return null;
         }
         if(0>=res[0] || 0>=res[1]) {
-            throw new InternalError("invalid resolution: "+res[0]+"x"+res[1]+" for res idx "+nres_index+"/"+nres_number);
+            throw new InternalError("invalid resolution: "+res[0]+"x"+res[1]+" for res idx "+nres_index+"/"+resolutionCount);
+        }
+        if( res[2] > widthMM ) {
+            widthMM = res[2];
         }
-        int rate = nrates[nrate_index];
+        if( res[3] > heightMM ) {
+            heightMM = res[3];
+        }
+        
+        int rate = nrates[nres_index][nrate_index];
         if(0>=rate) {
             rate = ScreenImpl.default_sm_rate;
             if(DEBUG) {
                 System.err.println("Invalid rate: "+rate+" at index "+nrate_index+"/"+nrates.length+", using default: "+ScreenImpl.default_sm_rate);
             }
         }
-        int rotation = nrotations[nrotation_index];
 
-        int[] props = new int[ 1 + ScreenModeUtil.NUM_SCREEN_MODE_PROPERTIES_ALL ];
+        int[] props = new int[ MonitorModeProps.NUM_MONITOR_MODE_PROPERTIES_ALL ];
         int i = 0;
-        props[i++] = nres_index; // use resolution index, not unique for native -> ScreenMode
-        props[i++] = 0; // set later for verification of iterator
+        props[i++] = MonitorModeProps.NUM_MONITOR_MODE_PROPERTIES_ALL;
         props[i++] = res[0]; // width
         props[i++] = res[1]; // height
-        props[i++] = ScreenImpl.default_sm_bpp; // FIXME
-        props[i++] = res[2]; // widthmm
-        props[i++] = res[3]; // heightmm
-        props[i++] = rate;   // rate
-        props[i++] = rotation;
-        props[i - ScreenModeUtil.NUM_SCREEN_MODE_PROPERTIES_ALL] = i - 1; // count without extra element
-
-        nmode_number++;
-
-        // iteration: r -> f -> bpp -> [w x h]
-        nrotation_index++;
-        if(nrotation_index == nrotations.length) {
-            nrotation_index=0;
-            nrate_index++;
-            if(null == nrates || nrate_index == nrates.length){
-                nres_index++;
-                if(nres_index == nres_number) {
-                    // done
-                    nrates=null;
-                    nrotations=null;
-                    return null;
-                }
-
-                nrates = getScreenModeRates0(dpy, screen_idx, nres_index);
-                if(null==nrates || 0==nrates.length) {
-                    return null;
-                }
-                nrate_index = 0;
-            }
+        props[i++] = ScreenImpl.default_sm_bpp; // bpp n/a in RandR11
+        props[i++] = rate*100;  // rate (Hz*100)
+        props[i++] = 0; // flags;
+        props[i++] = nres_index;
+        props[i++] = -1; // rotation placeholder;
+        if( MonitorModeProps.NUM_MONITOR_MODE_PROPERTIES_ALL != i ) {
+            throw new InternalError("XX");
+        }
+        return props;        
+    }
+    
+    @Override
+    public int[] getMonitorDeviceProps(final long dpy, final ScreenDriver screen, final MonitorModeProps.Cache cache, final int crt_idx) {
+        if( 0 < crt_idx ) {
+            // RandR11 only supports 1 CRT 
+            return null;
+        }
+        final int[] currentModeProps = getCurrentMonitorModeProps(dpy, screen, crt_idx);
+        if( null == currentModeProps) { // disabled
+            return null;
+        }
+        final MonitorMode currentMode = MonitorModeProps.streamInMonitorMode(null, cache, currentModeProps, 0);
+        final int allModesCount = cache.monitorModes.size();
+        final int[] props = new int[MonitorModeProps.MIN_MONITOR_DEVICE_PROPERTIES - 1 + allModesCount];
+        int i = 0;
+        props[i++] = props.length;
+        props[i++] = crt_idx;
+        props[i++] = widthMM;
+        props[i++] = heightMM;
+        props[i++] = 0; // rotated viewport x
+        props[i++] = 0; // rotated viewport y
+        props[i++] = currentMode.getRotatedWidth();  // rotated viewport width
+        props[i++] = currentMode.getRotatedHeight(); // rotated viewport height
+        props[i++] = currentMode.getId(); // current mode id
+        props[i++] = currentMode.getRotation();
+        for(int j=0; j<allModesCount; j++) {
+            props[i++] = cache.monitorModes.get(j).getId(); 
         }
-
         return props;
     }
+    
+    @Override
+    public int[] getMonitorDeviceViewport(final long dpy, final ScreenDriver screen, final int crt_idx) {
+        if( 0 < crt_idx ) {
+            // RandR11 only supports 1 CRT 
+            return null;
+        }
+        final int screen_idx = screen.getIndex();
+        long screenConfigHandle = getScreenConfiguration0(dpy, screen_idx);
+        if(0 == screenConfigHandle) {
+            return null;
+        }
+        int[] res;
+        final int nres_idx;
+        try {                
+            int resNumber = getNumScreenResolutions0(dpy, screen_idx);
+            if(0==resNumber) {
+                return null;
+            }
 
+            nres_idx = getCurrentScreenResolutionIndex0(screenConfigHandle);
+            if(0>nres_idx) {
+                return null;
+            }
+            if(nres_idx>=resNumber) {
+                throw new RuntimeException("Invalid resolution index: ! "+nres_idx+" < "+resNumber);
+            }
+            res = getScreenResolution0(dpy, screen_idx, nres_idx);
+            if(null==res || 0==res.length) {
+                return null;
+            }
+            if(0>=res[0] || 0>=res[1]) {
+                throw new InternalError("invalid resolution: "+res[0]+"x"+res[1]+" for res idx "+nres_idx+"/"+resNumber);
+            }
+        } finally {
+             freeScreenConfiguration0(screenConfigHandle);
+        }
+        int[] props = new int[4];
+        int i = 0;
+        props[i++] = 0;
+        props[i++] = 0;
+        props[i++] = res[0]; // width
+        props[i++] = res[1]; // height
+        return props;        
+    }
+    
     @Override
-    public ScreenMode getCurrentScreenModeImpl(final long dpy, final int screen_idx) {
+    public int[] getCurrentMonitorModeProps(final long dpy, final ScreenDriver screen, final int crt_idx) {
+        if( 0 < crt_idx ) {
+            // RandR11 only supports 1 CRT 
+            return null;
+        }
+        final int screen_idx = screen.getIndex();
         long screenConfigHandle = getScreenConfiguration0(dpy, screen_idx);
         if(0 == screenConfigHandle) {
             return null;
         }
         int[] res;
         int rate, rot;
+        final int nres_idx;
         try {                
-            int resNumber = getNumScreenModeResolutions0(dpy, screen_idx);
+            int resNumber = getNumScreenResolutions0(dpy, screen_idx);
             if(0==resNumber) {
                 return null;
             }
 
-            int resIdx = getCurrentScreenResolutionIndex0(screenConfigHandle);
-            if(0>resIdx) {
+            nres_idx = getCurrentScreenResolutionIndex0(screenConfigHandle);
+            if(0>nres_idx) {
                 return null;
             }
-            if(resIdx>=resNumber) {
-                throw new RuntimeException("Invalid resolution index: ! "+resIdx+" < "+resNumber);
+            if(nres_idx>=resNumber) {
+                throw new RuntimeException("Invalid resolution index: ! "+nres_idx+" < "+resNumber);
             }
-            res = getScreenModeResolution0(dpy, screen_idx, resIdx);
+            res = getScreenResolution0(dpy, screen_idx, nres_idx);
             if(null==res || 0==res.length) {
                 return null;
             }
             if(0>=res[0] || 0>=res[1]) {
-                throw new InternalError("invalid resolution: "+res[0]+"x"+res[1]+" for res idx "+resIdx+"/"+resNumber);
+                throw new InternalError("invalid resolution: "+res[0]+"x"+res[1]+" for res idx "+nres_idx+"/"+resNumber);
             }
             rate = getCurrentScreenRate0(screenConfigHandle);
             if(0>rate) {
@@ -172,40 +290,42 @@ public class RandR11 implements RandR {
         } finally {
              freeScreenConfiguration0(screenConfigHandle);
         }
-        int[] props = new int[ScreenModeUtil.NUM_SCREEN_MODE_PROPERTIES_ALL];
+        int[] props = new int[ MonitorModeProps.NUM_MONITOR_MODE_PROPERTIES_ALL ];
         int i = 0;
-        props[i++] = 0; // set later for verification of iterator
+        props[i++] = MonitorModeProps.NUM_MONITOR_MODE_PROPERTIES_ALL;
         props[i++] = res[0]; // width
         props[i++] = res[1]; // height
-        props[i++] = ScreenImpl.default_sm_bpp; // FIXME
-        props[i++] = res[2]; // widthmm
-        props[i++] = res[3]; // heightmm
-        props[i++] = rate;   // rate
+        props[i++] = ScreenImpl.default_sm_bpp;
+        props[i++] = rate*100;  // rate (Hz*100)
+        props[i++] = 0; // flags;
+        props[i++] = nres_idx; // mode_idx;
         props[i++] = rot;
-        props[i - ScreenModeUtil.NUM_SCREEN_MODE_PROPERTIES_ALL] = i; // count
-        return ScreenModeUtil.streamIn(props, 0);
+        if( MonitorModeProps.NUM_MONITOR_MODE_PROPERTIES_ALL != i ) {
+            throw new InternalError("XX");
+        }
+        return props;
     }
 
     @Override
-    public boolean setCurrentScreenModeImpl(final long dpy, final int screen_idx, final ScreenMode screenMode, final int screenModeIdx, final int resolutionIdx) {
+    public boolean setCurrentMonitorMode(final long dpy, final ScreenDriver screen, MonitorDevice monitor, final MonitorMode mode) {
         final long t0 = System.currentTimeMillis();
         boolean done = false;
+        final int screen_idx = screen.getIndex();
         long screenConfigHandle = getScreenConfiguration0(dpy, screen_idx);
         if(0 == screenConfigHandle) {
             return Boolean.valueOf(done);
         }
         try {
-            int resNumber = getNumScreenModeResolutions0(dpy, screen_idx);
-            if(0>resolutionIdx || resolutionIdx>=resNumber) {
-                throw new RuntimeException("Invalid resolution index: ! 0 < "+resolutionIdx+" < "+resNumber+", screenMode["+screenModeIdx+"] "+screenMode);
-            }
-    
-            final int f = screenMode.getMonitorMode().getRefreshRate();
-            final int r = screenMode.getRotation();
+            final int resId = mode.getId();
+            if(0>resId || resId>=resolutionCount) {
+                throw new RuntimeException("Invalid resolution index: ! 0 < "+resId+" < "+resolutionCount+", "+monitor+", "+mode);
+            }    
+            final int f = (int)mode.getRefreshRate(); // simply cut-off, orig is int
+            final int r = mode.getRotation();
 
-            if( setCurrentScreenModeStart0(dpy, screen_idx, screenConfigHandle, resolutionIdx, f, r) ) {
+            if( setCurrentScreenModeStart0(dpy, screen_idx, screenConfigHandle, resId, f, r) ) {
                 while(!done && System.currentTimeMillis()-t0 < ScreenImpl.SCREEN_MODE_CHANGE_TIMEOUT) {
-                    done = setCurrentScreenModePollEnd0(dpy, screen_idx, resolutionIdx, f, r);
+                    done = setCurrentScreenModePollEnd0(dpy, screen_idx, resId, f, r);
                     if(!done) {
                         try { Thread.sleep(10); } catch (InterruptedException e) { }
                     }
@@ -218,14 +338,14 @@ public class RandR11 implements RandR {
     }
 
     /** @return int[] { rot1, .. } */
-    private static native int[] getAvailableScreenModeRotations0(long display, int screen_index);
+    private static native int[] getAvailableScreenRotations0(long display, int screen_index);
 
-    private static native int getNumScreenModeResolutions0(long display, int screen_index);
+    private static native int getNumScreenResolutions0(long display, int screen_index);
 
     /** @return int[] { width, height, widthmm, heightmm } */
-    private static native int[] getScreenModeResolution0(long display, int screen_index, int mode_index);
+    private static native int[] getScreenResolution0(long display, int screen_index, int mode_index);
 
-    private static native int[] getScreenModeRates0(long display, int screen_index, int mode_index);
+    private static native int[] getScreenRates0(long display, int screen_index, int mode_index);
 
     private static native long getScreenConfiguration0(long display, int screen_index);
     private static native void freeScreenConfiguration0(long screenConfiguration);
diff --git a/src/newt/classes/jogamp/newt/driver/x11/RandR13.java b/src/newt/classes/jogamp/newt/driver/x11/RandR13.java
index 24c9806af..d10591381 100644
--- a/src/newt/classes/jogamp/newt/driver/x11/RandR13.java
+++ b/src/newt/classes/jogamp/newt/driver/x11/RandR13.java
@@ -27,25 +27,283 @@
  */
 package jogamp.newt.driver.x11;
 
-import com.jogamp.newt.ScreenMode;
+import java.util.Iterator;
 
+import jogamp.newt.MonitorModeProps;
+
+import com.jogamp.common.util.IntLongHashMap;
+import com.jogamp.common.util.VersionNumber;
+import com.jogamp.newt.MonitorDevice;
+import com.jogamp.newt.MonitorMode;
+
+/**
+ * Mapping details:
+ * <pre>
+ * MonitorMode.id   == XRR mode-id (not index)
+ * MonitorDevice.id == XRR monitor-idx (not id)
+ * </pre> 
+ */
 public class RandR13 implements RandR {
+    private static final boolean DEBUG = ScreenDriver.DEBUG;
+    
+    public static VersionNumber version = new VersionNumber(1, 3, 0);
 
-    public int[] getScreenModeFirstImpl(final long dpy, final int screen_idx) {
+    public static RandR13 createInstance(VersionNumber rAndRVersion) {
+        if( rAndRVersion.compareTo(version) >= 0 ) {
+            return new RandR13();
+        }
         return null;
+    }    
+    private RandR13() {        
+    }
+    
+    @Override
+    public void dumpInfo(final long dpy, final int screen_idx) {
+        long screenResources = getScreenResources0(dpy, screen_idx);
+        if(0 == screenResources) {
+            return;
+        }
+        try {
+            dumpInfo0(dpy, screen_idx, screenResources);
+        } finally {
+             freeScreenResources0(screenResources);
+        }        
+    }
+    
+    long sessionScreenResources = 0;
+    IntLongHashMap crtInfoHandleMap = null;
+    
+    @Override
+    public boolean beginInitialQuery(long dpy, ScreenDriver screen) {
+        final int screen_idx = screen.getIndex();
+        sessionScreenResources = getScreenResources0(dpy, screen_idx);
+        if( 0 != sessionScreenResources ) {
+            crtInfoHandleMap = new IntLongHashMap();
+            crtInfoHandleMap.setKeyNotFoundValue(0);
+            return true;
+        } else {
+            return false;
+        }
+    }
+    
+    @Override
+    public void endInitialQuery(long dpy, ScreenDriver screen) {
+        if( null != crtInfoHandleMap ) {
+            for(Iterator<IntLongHashMap.Entry> iter = crtInfoHandleMap.iterator(); iter.hasNext(); ) {
+                final IntLongHashMap.Entry entry = iter.next();
+                freeMonitorInfoHandle0(entry.value);
+            }
+            crtInfoHandleMap.clear();
+            crtInfoHandleMap = null;
+        }
+        if( 0 != sessionScreenResources ) {
+            freeScreenResources0( sessionScreenResources );
+            sessionScreenResources = 0;
+        }
     }
-    public int[] getScreenModeNextImpl(final long dpy, final int screen_idx) {
-        return null;        
+    
+    private final long getScreenResourceHandle(final long dpy, final int screen_idx) {
+        if( 0 != sessionScreenResources ) {
+            return sessionScreenResources;
+        }
+        return getScreenResources0(dpy, screen_idx);
+    }
+    private final void releaseScreenResourceHandle(final long screenResourceHandle) {
+        if( 0 == sessionScreenResources ) {
+            freeScreenResources0( screenResourceHandle );
+        }
     }
-    public ScreenMode getCurrentScreenModeImpl(final long dpy, final int screen_idx) {
-        return null;    
+    
+    private final long getMonitorInfoHandle(final long dpy, final int screen_idx, long screenResources, final int monitor_idx) {
+        if( null != crtInfoHandleMap ) {
+            long h = crtInfoHandleMap.get(monitor_idx);
+            if( 0 == h ) {
+                h = getMonitorInfoHandle0(dpy, screen_idx, screenResources, monitor_idx);
+                crtInfoHandleMap.put(monitor_idx, h);
+            }
+            return h;
+        } else {
+            return getMonitorInfoHandle0(dpy, screen_idx, screenResources, monitor_idx);
+        }
     }
+    private final void releaseMonitorInfoHandle(final long monitorInfoHandle) {
+        if( null == crtInfoHandleMap ) {
+            freeMonitorInfoHandle0(monitorInfoHandle);
+        }
+    }    
     
-    public boolean setCurrentScreenModeImpl(final long dpy, final int screen_idx, final ScreenMode screenMode, final int screenModeIdx, final int resolutionIdx) {
-        return false;        
+    @Override
+    public int getMonitorDeviceCount(final long dpy, final ScreenDriver screen) {
+        final int screen_idx = screen.getIndex();
+        final long screenResources = getScreenResourceHandle(dpy, screen_idx);
+        try {
+            return getMonitorDeviceCount0(screenResources);
+        } finally {
+            releaseScreenResourceHandle(screenResources);
+        }
     }
     
+    @Override
+    public int[] getAvailableRotations(final long dpy, final ScreenDriver screen, final int crt_idx) {
+        final int screen_idx = screen.getIndex();
+        final long screenResources = getScreenResourceHandle(dpy, screen_idx);
+        try {
+            final long monitorInfo = getMonitorInfoHandle(dpy, screen_idx, screenResources, crt_idx);
+            try {
+                final int[] availRotations = getAvailableRotations0(monitorInfo);
+                if(null==availRotations || 0==availRotations.length) {
+                    return null;
+                }        
+                return availRotations;
+            } finally {
+                releaseMonitorInfoHandle(monitorInfo);
+            }
+        } finally {
+            releaseScreenResourceHandle(screenResources);
+        }
+    }
+    
+    @Override
+    public int[] getMonitorModeProps(final long dpy, final ScreenDriver screen, final int mode_idx) {
+        final int screen_idx = screen.getIndex();
+        final long screenResources = getScreenResourceHandle(dpy, screen_idx);
+        try {
+            return getMonitorMode0(screenResources, mode_idx);
+        } finally {
+            releaseScreenResourceHandle(screenResources);
+        }
+    }
+    
+    @Override
+    public int[] getMonitorDeviceProps(final long dpy, final ScreenDriver screen, MonitorModeProps.Cache cache, final int crt_idx) {
+        final int screen_idx = screen.getIndex();
+        final long screenResources = getScreenResourceHandle(dpy, screen_idx);
+        try {
+            final long monitorInfo = getMonitorInfoHandle(dpy, screen_idx, screenResources, crt_idx);
+            try {
+                return getMonitorDevice0(dpy, screenResources, monitorInfo, crt_idx);
+            } finally {
+                releaseMonitorInfoHandle(monitorInfo);
+            }
+        } finally {
+            releaseScreenResourceHandle(screenResources);
+        }
+    }
+    
+    @Override
+    public int[] getMonitorDeviceViewport(final long dpy, final ScreenDriver screen, final int crt_idx) {        
+        final int screen_idx = screen.getIndex();
+        final long screenResources = getScreenResourceHandle(dpy, screen_idx);
+        try {
+            final long monitorInfo = getMonitorInfoHandle(dpy, screen_idx, screenResources, crt_idx);
+            try {
+                return getMonitorViewport0(monitorInfo);
+            } finally {
+                releaseMonitorInfoHandle(monitorInfo);
+            }
+        } finally {
+            releaseScreenResourceHandle(screenResources);
+        }
+    }
+    
+    @Override
+    public int[] getCurrentMonitorModeProps(final long dpy, final ScreenDriver screen, final int crt_idx) {
+        final int screen_idx = screen.getIndex();
+        final long screenResources = getScreenResourceHandle(dpy, screen_idx);
+        try {
+            final long monitorInfo = getMonitorInfoHandle(dpy, screen_idx, screenResources, crt_idx);
+            try {
+                return getMonitorCurrentMode0(screenResources, monitorInfo);
+            } finally {
+                releaseMonitorInfoHandle(monitorInfo);
+            }
+        } finally {
+            releaseScreenResourceHandle(screenResources);
+        }
+    }
+    
+    @Override
+    public boolean setCurrentMonitorMode(final long dpy, final ScreenDriver screen, MonitorDevice monitor, final MonitorMode mode) {
+        final int screen_idx = screen.getIndex();
+        final long screenResources = getScreenResourceHandle(dpy, screen_idx);
+        final boolean res;
+        try {
+            final long monitorInfo = getMonitorInfoHandle(dpy, screen_idx, screenResources, monitor.getId());
+            try {
+                res = setMonitorMode0(dpy, screenResources, monitorInfo, monitor.getId(), mode.getId(), mode.getRotation(), 
+                                      -1, -1); // no fixed position!
+            } finally {
+                releaseMonitorInfoHandle(monitorInfo);
+            }
+        } finally {
+            releaseScreenResourceHandle(screenResources);
+        }
+        /*** 
+         * TODO: Would need a complete re-layout of crt positions,
+         *       which is _not_ implicit by XRandR .. sadly.
+         *        
+        if( res ) {
+            updateScreenViewport(dpy, screen, monitor);
+        } */
+        return res;
+    }
+    
+    /** See above ..
+    private final void updateScreenViewport(final long dpy, final ScreenDriver screen, MonitorDevice monitor) {
+        final int screen_idx = screen.getIndex();
+        final long screenResources = getScreenResourceHandle(dpy, screen_idx);
+        try {
+            RectangleImmutable newViewp = null;
+            final long monitorInfo = getMonitorInfoHandle(dpy, screen_idx, screenResources, monitor.getId());
+            try {
+                final int[] vprops = getMonitorViewport0(monitorInfo);
+                if( null != vprops ) {
+                    newViewp = new Rectangle(vprops[0], vprops[1], vprops[2], vprops[3]);
+                }
+                System.err.println("XXX setScreenViewport: newVp "+newViewp);
+            } finally {
+                releaseMonitorInfoHandle(monitorInfo);
+            }
+            if( null != newViewp ) {
+                final List<MonitorDevice> monitors = screen.getMonitorDevices();
+                final ArrayList<RectangleImmutable> viewports = new ArrayList<RectangleImmutable>();
+                for(int i=0; i<monitors.size(); i++) {
+                    final MonitorDevice crt = monitors.get(i);
+                    if( crt.getId() != monitor.getId() ) {
+                        System.err.println("XXX setScreenViewport: add.pre["+i+"]: "+crt.getViewport());
+                        viewports.add( crt.getViewport() ) ;
+                    } else {
+                        System.err.println("XXX setScreenViewport: add.new["+i+"]: "+newViewp);
+                        viewports.add( newViewp );
+                    }
+                }
+                final RectangleImmutable newScrnViewp = new Rectangle().union(viewports);
+                System.err.println("XXX setScreenViewport: "+screen.getViewport()+" -> "+newScrnViewp);
+                setScreenViewport0(dpy, screen_idx, screenResources, newScrnViewp.getX(), newScrnViewp.getY(), newScrnViewp.getWidth(), newScrnViewp.getHeight()); 
+            }
+        } finally {
+            dumpInfo0(dpy, screen_idx, screenResources);
+            releaseScreenResourceHandle(screenResources);
+        }        
+    } */
+        
     private static native long getScreenResources0(long display, int screen_index);
-    private static native void freeScreenResources0(long screenConfiguration);
+    private static native void freeScreenResources0(long screenResources);
+    private static native void dumpInfo0(long display, int screen_index, long screenResources);
+    
+    private static native int getMonitorDeviceCount0(long screenResources);
+    
+    private static native long getMonitorInfoHandle0(long display, int screen_index, long screenResources, int monitor_index);
+    private static native void freeMonitorInfoHandle0(long monitorInfoHandle);
+    
+    private static native int[] getAvailableRotations0(long monitorInfo);
+    private static native int[] getMonitorViewport0(long monitorInfo);
+    private static native int[] getMonitorCurrentMode0(long monitorInfo);
+    
+    private static native int[] getMonitorMode0(long screenResources, int mode_index);
+    private static native int[] getMonitorCurrentMode0(long screenResources, long monitorInfo);
+    private static native int[] getMonitorDevice0(long display, long screenResources, long monitorInfo, int monitor_idx);
     
+    private static native boolean setMonitorMode0(long display, long screenResources, long monitorInfo, int monitor_idx, int mode_id, int rotation, int x, int y);
+    private static native boolean setScreenViewport0(long display, int screen_index, long screenResources, int x, int y, int width, int height);
 }
diff --git a/src/newt/classes/jogamp/newt/driver/x11/ScreenDriver.java b/src/newt/classes/jogamp/newt/driver/x11/ScreenDriver.java
index cd8da9b60..ba22a6ce4 100644
--- a/src/newt/classes/jogamp/newt/driver/x11/ScreenDriver.java
+++ b/src/newt/classes/jogamp/newt/driver/x11/ScreenDriver.java
@@ -33,23 +33,29 @@
  */
 package jogamp.newt.driver.x11;
 
+import java.util.ArrayList;
 import java.util.List;
 
-import javax.media.nativewindow.util.Dimension;
-import javax.media.nativewindow.util.Point;
+import javax.media.nativewindow.AbstractGraphicsDevice;
+import javax.media.nativewindow.util.Rectangle;
 
 import jogamp.nativewindow.x11.X11Util;
+import jogamp.newt.Debug;
 import jogamp.newt.DisplayImpl;
+import jogamp.newt.MonitorModeProps;
 import jogamp.newt.DisplayImpl.DisplayRunnable;
 import jogamp.newt.ScreenImpl;
 
+import com.jogamp.common.util.ArrayHashSet;
 import com.jogamp.common.util.VersionNumber;
 import com.jogamp.nativewindow.x11.X11GraphicsDevice;
 import com.jogamp.nativewindow.x11.X11GraphicsScreen;
-import com.jogamp.newt.ScreenMode;
-
-public class ScreenDriver extends ScreenImpl {
+import com.jogamp.newt.MonitorDevice;
+import com.jogamp.newt.MonitorMode;
 
+public class ScreenDriver extends ScreenImpl {    
+    protected static final boolean DEBUG_TEST_RANDR13_DISABLED = Debug.isPropertyDefined("newt.test.Screen.disableRandR13", true);
+    
     static {
         DisplayDriver.initSingleton();
     }
@@ -57,12 +63,13 @@ public class ScreenDriver extends ScreenImpl {
     public ScreenDriver() {
     }
 
+    @Override
     protected void createNativeImpl() {
         // validate screen index
         Long handle = runWithLockedDisplayDevice( new DisplayImpl.DisplayRunnable<Long>() {
             public Long run(long dpy) {        
                 return new Long(GetScreen0(dpy, screen_idx));
-            } } );        
+            } } );
         if (handle.longValue() == 0) {
             throw new RuntimeException("Error creating screen: " + screen_idx);
         }
@@ -73,73 +80,116 @@ public class ScreenDriver extends ScreenImpl {
             int v[] = getRandRVersion0(dpy);
             randrVersion = new VersionNumber(v[0], v[1], 0);
         }
-        if( DEBUG ) {
-            System.err.println("RandR "+randrVersion);
+        {
+            final RandR13 rAndR13 = DEBUG_TEST_RANDR13_DISABLED ? null : RandR13.createInstance(randrVersion);
+            if( null != rAndR13 ) {
+                rAndR = rAndR13;
+            } else {
+                rAndR = RandR11.createInstance(randrVersion);
+            }
         }
-        if( !randrVersion.isZero() ) {
-            rAndR = new RandR11();
-        } else {
-            rAndR = null;
+        if( DEBUG ) {
+            System.err.println("RandR "+randrVersion+", "+rAndR);
+            rAndR.dumpInfo(dpy, screen_idx);
         }
     }
 
+    @Override
     protected void closeNativeImpl() {
     }
 
     private VersionNumber randrVersion;
     private RandR rAndR;
-    
+
     @Override
-    protected int[] getScreenModeFirstImpl() {
-        if( null == rAndR ) { return null; }
-        
-        return runWithLockedDisplayDevice( new DisplayImpl.DisplayRunnable<int[]>() {
-            public int[] run(long dpy) {
-                return rAndR.getScreenModeFirstImpl(dpy, screen_idx);
-            } } );
+    protected final void collectNativeMonitorModesAndDevicesImpl(MonitorModeProps.Cache cache) {
+        if( null == rAndR ) { return; }
+        final AbstractGraphicsDevice device = getDisplay().getGraphicsDevice();
+        device.lock();
+        try {
+            if( rAndR.beginInitialQuery(device.getHandle(), this) ) {
+                try {
+                    final int crtCount = rAndR.getMonitorDeviceCount(device.getHandle(), this);
+                    
+                    // Gather all available rotations
+                    final ArrayHashSet<Integer> availableRotations = new ArrayHashSet<Integer>();
+                    for(int i = 0; i < crtCount; i++) {
+                        final int[] rotations = rAndR.getAvailableRotations(device.getHandle(), this, i);
+                        if( null != rotations ) {
+                            final List<Integer> rotationList = new ArrayList<Integer>(rotations.length);
+                            for(int j=0; j<rotations.length; j++ ) { rotationList.add(rotations[j]); }
+                            availableRotations.addAll(rotationList);
+                        }
+                    }
+                    
+                    // collect all modes, while injecting all available rotations
+                    {
+                        int modeIdx = 0;
+                        int[] props;
+                        do {
+                            props = rAndR.getMonitorModeProps(device.getHandle(), this, modeIdx++);
+                            if( null != props ) {
+                                for(int i = 0; i < availableRotations.size(); i++) {
+                                    props[MonitorModeProps.IDX_MONITOR_MODE_ROT] = availableRotations.get(i);
+                                    MonitorModeProps.streamInMonitorMode(null, cache, props, 0);
+                                }
+                            }
+                        } while( null != props);
+                    }
+                    if( cache.monitorModes.size() > 0 ) {
+                        for(int i = 0; i < crtCount; i++) {
+                            final int[] monitorProps = rAndR.getMonitorDeviceProps(device.getHandle(), this, cache, i);
+                            if( null != monitorProps ) { // enabled
+                                MonitorModeProps.streamInMonitorDevice(null, cache, this, monitorProps, 0);
+                            }
+                        }
+                    }
+                } finally {
+                    rAndR.endInitialQuery(device.getHandle(), this);
+                }
+            }
+        } finally {
+            device.unlock();
+        }
     }
 
     @Override
-    protected int[] getScreenModeNextImpl() {
-        if( null == rAndR ) { return null; }
-        
-        // assemble: w x h x bpp x f x r        
-        return runWithLockedDisplayDevice( new DisplayImpl.DisplayRunnable<int[]>() {
-            public int[] run(long dpy) {
-                return rAndR.getScreenModeNextImpl(dpy, screen_idx);
-            } } );
+    protected Rectangle getNativeMonitorDeviceViewportImpl(MonitorDevice monitor) {
+        final AbstractGraphicsDevice device = getDisplay().getGraphicsDevice();
+        device.lock();
+        try {
+            int[] viewportProps = rAndR.getMonitorDeviceViewport(device.getHandle(), this, monitor.getId());
+            return new Rectangle(viewportProps[0], viewportProps[1], viewportProps[2], viewportProps[3]);
+        } finally {
+            device.unlock();
+        }
     }
-
+    
     @Override
-    protected ScreenMode getCurrentScreenModeImpl() {
+    protected MonitorMode queryCurrentMonitorModeImpl(final MonitorDevice monitor) {
         if( null == rAndR ) { return null; }
         
-        return runWithLockedDisplayDevice( new DisplayImpl.DisplayRunnable<ScreenMode>() {
-            public ScreenMode run(long dpy) {
-                return rAndR.getCurrentScreenModeImpl(dpy, screen_idx);
+        return runWithLockedDisplayDevice( new DisplayImpl.DisplayRunnable<MonitorMode>() {
+            public MonitorMode run(long dpy) {
+                final int[] currentModeProps = rAndR.getCurrentMonitorModeProps(dpy, ScreenDriver.this, monitor.getId());
+                return MonitorModeProps.streamInMonitorMode(null, null, currentModeProps, 0);
             } } );
     }
 
     @Override
-    protected boolean setCurrentScreenModeImpl(final ScreenMode screenMode) {
+    protected boolean setCurrentMonitorModeImpl(final MonitorDevice monitor, final MonitorMode mode) {
         if( null == rAndR ) { return false; }
         
-        final List<ScreenMode> screenModes = this.getScreenModesOrig();
-        final int screenModeIdx = screenModes.indexOf(screenMode);
-        if(0>screenModeIdx) {
-            throw new RuntimeException("ScreenMode not element of ScreenMode list: "+screenMode);
-        }
         final long t0 = System.currentTimeMillis();
         boolean done = runWithTempDisplayHandle( new DisplayImpl.DisplayRunnable<Boolean>() {
             public Boolean run(long dpy) {
-                final int resIdx = getScreenModesIdx2NativeIdx().get(screenModeIdx);
-                return Boolean.valueOf( rAndR.setCurrentScreenModeImpl(dpy, screen_idx, screenMode, screenModeIdx, resIdx) );
+                return Boolean.valueOf( rAndR.setCurrentMonitorMode(dpy, ScreenDriver.this, monitor, mode) );
             }            
         }).booleanValue();
         
         if(DEBUG || !done) {
             System.err.println("X11Screen.setCurrentScreenModeImpl: TO ("+SCREEN_MODE_CHANGE_TIMEOUT+") reached: "+
-                               (System.currentTimeMillis()-t0)+"ms; Current: "+getCurrentScreenMode()+"; Desired: "+screenMode);
+                               (System.currentTimeMillis()-t0)+"ms; "+monitor.getCurrentMode()+" -> "+mode);
         }
         return done;
     }
@@ -149,6 +199,7 @@ public class ScreenDriver extends ScreenImpl {
             return new Boolean(X11Util.XineramaIsEnabled(dpy)); 
         } };
     
+    @Override
     protected int validateScreenIndex(final int idx) {
         final DisplayDriver x11Display = (DisplayDriver) getDisplay();
         final Boolean r = x11Display.isXineramaEnabled();
@@ -159,13 +210,14 @@ public class ScreenDriver extends ScreenImpl {
         }
     }
         
-    protected void getVirtualScreenOriginAndSize(final Point virtualOrigin, final Dimension virtualSize) {
+    @Override
+    protected void calcVirtualScreenOriginAndSize(final Rectangle vOriginSize) {
         runWithLockedDisplayDevice( new DisplayImpl.DisplayRunnable<Object>() {
             public Object run(long dpy) {
-                virtualOrigin.setX(0);
-                virtualOrigin.setY(0);
-                virtualSize.setWidth(getWidth0(dpy, screen_idx));
-                virtualSize.setHeight(getHeight0(dpy, screen_idx));
+                vOriginSize.setX(0);
+                vOriginSize.setY(0);
+                vOriginSize.setWidth(getWidth0(dpy, screen_idx));
+                vOriginSize.setHeight(getHeight0(dpy, screen_idx));
                 return null;
             } } );        
     }