[X2Go-User] Matlab in X2go

[Thackeray, Neil L]

I'm having some issues using Matlab2018a in X2go. When using xfce4 (and KDE) desktop it causes some exception when the X2go window is hidden or resized. It also will hide all of the button widgets in Matlab until I mouse over them.

When I change the session type to 'Single Application: Terminal', and then typing 'matlab &' in the terminal it works perfectly fine.

This is the exception that Matlab throws, usually many times:

Exception in thread "AWT-EventQueue-0": java.lang.ClassCastException: sun.awt.image.BufImgSurfaceData cannot be cast to sun.java2d.xr.XRSurfaceData
at sun.java2d.xr.XRPMBlitLoops.cacheToTmpSurface(XRPMBlitLoops.java:148)
at sun.java2d.xr.XrSwToPMBlit.Blit(XRPMBlitLoops.java:356)
at sun.java2d.pipe.DrawImage.blitSurfaceData(DrawImage.java:959)
at sun.java2d.pipe.DrawImage.renderImageCopy(DrawImage.java:577)
at sun.java2d.pipe.DrawImage.copyImage(DrawImage.java:67)
at sun.java2d.pipe.DrawImage.copyImage(DrawImage.java:1014)
at sun.java2d.pipe.ValidatePipe.copyImage(ValidatePipe.java:186)
at sun.java2d.SunGraphics2D.drawImage(SunGraphics2D.java:3318)
at sun.java2d.SunGraphics2D.drawImage(SunGraphics2D.java:3296)
at javax.swing.ImageIcon.paintIcon(ImageIcon.java:425)
at com.mathworks.toolstrip.plaf.GalleryButtonUI.paintContent(GalleryButtonUI.java:115)
at com.mathworks.toolstrip.plaf.RegularButtonUI.paintContent(RegularButtonUI.java:65)
at com.mathworks.toolstrip.plaf.ToolstripButtonUI.paint(ToolstripButtonUI.java:198)
at javax.swing.plaf.ComponentUI.update(ComponentUI.java:161)
at javax.swing.JComponent.paintComponent(JComponent.java:780)
at com.mathworks.mwswing.MJButton.paintComponent(MJButton.java:432)
at javax.swing.JComponent.paint(JComponent.java:1056)
at com.mathworks.mwswing.MJButton.paint(MJButton.java:410)
at javax.swing.JComponent.paintChildren(JComponent.java:889)
at javax.swing.JComponent.paint(JComponent.java:1065)
at javax.swing.JComponent.paintChildren(JComponent.java:889)
at javax.swing.JComponent.paint(JComponent.java:1065)
at javax.swing.JComponent.paintChildren(JComponent.java:889)
at javax.swing.JComponent.paint(JComponent.java:1065)
at javax.swing.JComponent.paintChildren(JComponent.java:889)
at javax.swing.JComponent.paint(JComponent.java:1065)
at javax.swing.JComponent.paintToOffscreen(JComponent.java:5210)
at javax.swing.RepaintManager$PaintManager.paintDoubleBuffered(RepaintManager.java:1579)
at javax.swing.RepaintManager$PaintManager.paint(RepaintManager.java:1502)
at javax.swing.BufferStrategyPaintManager.paint(BufferStrategyPaintManager.java:306)
at javax.swing.RepaintManager.paint(RepaintManager.java:1272)
at javax.swing.JComponent._paintImmediately(JComponent.java:5158)
at javax.swing.JComponent.paintImmediately(JComponent.java:4969)
at javax.swing.RepaintManager$4.run(RepaintManager.java:831)
at javax.swing.RepaintManager$4.run(RepaintManager.java:814)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:80)
at javax.swing.RepaintManager.paintDirtyRegions(RepaintManager.java:814)
at javax.swing.RepaintManager.paintDirtyRegions(RepaintManager.java:789)
at javax.swing.RepaintManager.prePaintDirtyRegions(RepaintManager.java:738)
at javax.swing.RepaintManager.access$1200(RepaintManager.java:64)
at javax.swing.RepaintManager$ProcessingRunnable.run(RepaintManager.java:1732)
at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:311)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:756)
at java.awt.EventQueue.access$500(EventQueue.java:97)
at java.awt.EventQueue$3.run(EventQueue.java:709)
at java.awt.EventQueue$3.run(EventQueue.java:703)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:80)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:726)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)

[Ulrich Sibiller]

https://stackoverflow.com/questions/34188495/how-can-i-work-around-the-classcastexception-in-java2d-bug-id-7172749
describes that problem and offers a workaround (JVM option
-Dsun.java2d.xrender=false)
Unfortunately that workaround is bad for the x2go environment and will
probably slow down your desktop. Normally we recommend to do the
opposite and ENABLE xrender rendering because then the functions that
NX can accellerate are used.

Uli

I’m having some issues using Matlab2018a in X2go. When using xfce4 (and KDE) desktop it causes some exception when the X2go window is hidden or resized. It also will hide all of the button widgets in Matlab until I mouse over them.
When I change the session type to ‘Single Application: Terminal’, and then typing ‘matlab &’ in the terminal it works perfectly fine.
Exception in thread "AWT-EventQueue-0": java.lang.ClassCastException: sun.awt.image.BufImgSurfaceData cannot be cast to sun.java2d.xr.XRSurfaceData
at sun.java2d.xr.XRPMBlitLoops.cacheToTmpSurface(XRPMBlitLoops.java:148)
at sun.java2d.xr.XrSwToPMBlit.Blit(XRPMBlitLoops.java:356)
at sun.java2d.pipe.DrawImage.blitSurfaceData(DrawImage.java:959)
at sun.java2d.pipe.DrawImage.renderImageCopy(DrawImage.java:577)
at sun.java2d.pipe.DrawImage.copyImage(DrawImage.java:67)
at sun.java2d.pipe.DrawImage.copyImage(DrawImage.java:1014)
at sun.java2d.pipe.ValidatePipe.copyImage(ValidatePipe.java:186)
at sun.java2d.SunGraphics2D.drawImage(SunGraphics2D.java:3318)
at sun.java2d.SunGraphics2D.drawImage(SunGraphics2D.java:3296)
at javax.swing.ImageIcon.paintIcon(ImageIcon.java:425)
at com.mathworks.toolstrip.plaf.GalleryButtonUI.paintContent(GalleryButtonUI.java:115)
at com.mathworks.toolstrip.plaf.RegularButtonUI.paintContent(RegularButtonUI.java:65)
at com.mathworks.toolstrip.plaf.ToolstripButtonUI.paint(ToolstripButtonUI.java:198)
at javax.swing.plaf.ComponentUI.update(ComponentUI.java:161)
at javax.swing.JComponent.paintComponent(JComponent.java:780)
at com.mathworks.mwswing.MJButton.paintComponent(MJButton.java:432)
at javax.swing.JComponent.paint(JComponent.java:1056)
at com.mathworks.mwswing.MJButton.paint(MJButton.java:410)
at javax.swing.JComponent.paintChildren(JComponent.java:889)
at javax.swing.JComponent.paint(JComponent.java:1065)
at javax.swing.JComponent.paintChildren(JComponent.java:889)
at javax.swing.JComponent.paint(JComponent.java:1065)
at javax.swing.JComponent.paintChildren(JComponent.java:889)
at javax.swing.JComponent.paint(JComponent.java:1065)
at javax.swing.JComponent.paintChildren(JComponent.java:889)
at javax.swing.JComponent.paint(JComponent.java:1065)
at javax.swing.JComponent.paintToOffscreen(JComponent.java:5210)
at javax.swing.RepaintManager$PaintManager.paintDoubleBuffered(RepaintManager.java:1579)
at javax.swing.RepaintManager$PaintManager.paint(RepaintManager.java:1502)
at javax.swing.BufferStrategyPaintManager.paint(BufferStrategyPaintManager.java:306)
at javax.swing.RepaintManager.paint(RepaintManager.java:1272)
at javax.swing.JComponent._paintImmediately(JComponent.java:5158)
at javax.swing.JComponent.paintImmediately(JComponent.java:4969)
at javax.swing.RepaintManager$4.run(RepaintManager.java:831)
at javax.swing.RepaintManager$4.run(RepaintManager.java:814)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:80)
at javax.swing.RepaintManager.paintDirtyRegions(RepaintManager.java:814)
at javax.swing.RepaintManager.paintDirtyRegions(RepaintManager.java:789)
at javax.swing.RepaintManager.prePaintDirtyRegions(RepaintManager.java:738)
at javax.swing.RepaintManager.access$1200(RepaintManager.java:64)
at javax.swing.RepaintManager$ProcessingRunnable.run(RepaintManager.java:1732)
at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:311)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:756)
at java.awt.EventQueue.access$500(EventQueue.java:97)
at java.awt.EventQueue$3.run(EventQueue.java:709)
at java.awt.EventQueue$3.run(EventQueue.java:703)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:80)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:726)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)
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[Thackeray, Neil L]

Disabling xrender would be difficult to do since I think it would mean modifying the script that launches Matlab.

Just out of curiosity, what is the difference between launching Matlab directly through X2go, and launching it on a linux desktop in X2go? It works fine launching it directly.

-----Original Message-----
From: Ulrich Sibiller <***@gmx.de>
Sent: Tuesday, October 23, 2018 5:46 AM
To: Thackeray, Neil L <***@illinois.edu>
Cc: x2go users <x2go-***@lists.x2go.org>
Subject: Re: [X2Go-User] Matlab in X2go

https://stackoverflow.com/questions/34188495/how-can-i-work-around-the-classcastexception-in-java2d-bug-id-7172749
describes that problem and offers a workaround (JVM option
-Dsun.java2d.xrender=false)
Unfortunately that workaround is bad for the x2go environment and will probably slow down your desktop. Normally we recommend to do the opposite and ENABLE xrender rendering because then the functions that NX can accellerate are used.

Uli

I’m having some issues using Matlab2018a in X2go. When using xfce4 (and KDE) desktop it causes some exception when the X2go window is hidden or resized. It also will hide all of the button widgets in Matlab until I mouse over them.
When I change the session type to ‘Single Application: Terminal’, and then typing ‘matlab &’ in the terminal it works perfectly fine.
sun.awt.image.BufImgSurfaceData cannot be cast to
sun.java2d.xr.XRSurfaceData
at
sun.java2d.xr.XRPMBlitLoops.cacheToTmpSurface(XRPMBlitLoops.java:148)
at
sun.java2d.xr.XrSwToPMBlit.Blit(XRPMBlitLoops.java:356)
at
sun.java2d.pipe.DrawImage.blitSurfaceData(DrawImage.java:959)
at
sun.java2d.pipe.DrawImage.renderImageCopy(DrawImage.java:577)
at
sun.java2d.pipe.DrawImage.copyImage(DrawImage.java:67)
at
sun.java2d.pipe.DrawImage.copyImage(DrawImage.java:1014)
at
sun.java2d.pipe.ValidatePipe.copyImage(ValidatePipe.java:186)
at
sun.java2d.SunGraphics2D.drawImage(SunGraphics2D.java:3318)
at
sun.java2d.SunGraphics2D.drawImage(SunGraphics2D.java:3296)
at javax.swing.ImageIcon.paintIcon(ImageIcon.java:425)
at
com.mathworks.toolstrip.plaf.GalleryButtonUI.paintContent(GalleryButto
nUI.java:115)
at
com.mathworks.toolstrip.plaf.RegularButtonUI.paintContent(RegularButto
nUI.java:65)
at
com.mathworks.toolstrip.plaf.ToolstripButtonUI.paint(ToolstripButtonUI
.java:198)
at
javax.swing.plaf.ComponentUI.update(ComponentUI.java:161)
at
javax.swing.JComponent.paintComponent(JComponent.java:780)
at
com.mathworks.mwswing.MJButton.paintComponent(MJButton.java:432)
at javax.swing.JComponent.paint(JComponent.java:1056)
at
com.mathworks.mwswing.MJButton.paint(MJButton.java:410)
at
javax.swing.JComponent.paintChildren(JComponent.java:889)
at javax.swing.JComponent.paint(JComponent.java:1065)
at
javax.swing.JComponent.paintChildren(JComponent.java:889)
at javax.swing.JComponent.paint(JComponent.java:1065)
at
javax.swing.JComponent.paintChildren(JComponent.java:889)
at javax.swing.JComponent.paint(JComponent.java:1065)
at
javax.swing.JComponent.paintChildren(JComponent.java:889)
at javax.swing.JComponent.paint(JComponent.java:1065)
at
javax.swing.JComponent.paintToOffscreen(JComponent.java:5210)
at
javax.swing.RepaintManager$PaintManager.paintDoubleBuffered(RepaintMan
ager.java:1579)
at
javax.swing.RepaintManager$PaintManager.paint(RepaintManager.java:1502
)
at
javax.swing.BufferStrategyPaintManager.paint(BufferStrategyPaintManage
r.java:306)
at
javax.swing.RepaintManager.paint(RepaintManager.java:1272)
at
javax.swing.JComponent._paintImmediately(JComponent.java:5158)
at
javax.swing.JComponent.paintImmediately(JComponent.java:4969)
at
javax.swing.RepaintManager$4.run(RepaintManager.java:831)
at
javax.swing.RepaintManager$4.run(RepaintManager.java:814)
at java.security.AccessController.doPrivileged(Native Method)
at
java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPr
ivilege(ProtectionDomain.java:80)
at
javax.swing.RepaintManager.paintDirtyRegions(RepaintManager.java:814)
at
javax.swing.RepaintManager.paintDirtyRegions(RepaintManager.java:789)
at
javax.swing.RepaintManager.prePaintDirtyRegions(RepaintManager.java:73
8)
at
javax.swing.RepaintManager.access$1200(RepaintManager.java:64)
at
1732)
at
java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:311)
at
java.awt.EventQueue.dispatchEventImpl(EventQueue.java:756)
at java.awt.EventQueue.access$500(EventQueue.java:97)
at java.awt.EventQueue$3.run(EventQueue.java:709)
at java.awt.EventQueue$3.run(EventQueue.java:703)
at java.security.AccessController.doPrivileged(Native Method)
at
java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPr
ivilege(ProtectionDomain.java:80)
at
java.awt.EventQueue.dispatchEvent(EventQueue.java:726)
at
java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThrea
d.java:201)
at
java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.j
ava:116)
at
java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThrea
d.java:105)
at
java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
at
java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
at
java.awt.EventDispatchThread.run(EventDispatchThread.java:82)
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