Posted by MarcoNL on Sep 21, 2022; 7:03am
URL: https://forum.jogamp.org/JOGL-crash-on-system-with-dual-NVIDIA-Quadro-K600-dual-monitor-tp4041856p4041880.html

Hi all.

Finally, yesterday I had again the opportunity to connect to the workstation with two NVIDIA Quadro K600 adapter (each one connected to a dedicated medical display), and perform more tests.

I have used these two modified versions of my JOGL-only test cases:

JoglContextTestCase.java (using GLCanvas)

JoglJPanelContextTestCase.java (using GLJPanel)

Here are the results:

1) When I run JoglContextTestCase with command line parameter "0" (asking to open the JFrame containing GLCanvas on Device # 0 - i.e., the first medical display), I obtain a crash. Here is the log for this test:

JOGLTestLog_Device0.txt

2) When I run JoglContextTestCase with command line parameter "1" (asking to open the JFrame containing GLCanvas on Device # 1 - i.e., the second medical display), everything seems to work fine. Here is the log for this test:

JOGLTestLog_Device1.txt

3) When I run JoglJPanelContextTestCase with command line parameter "0" (asking to open the JFrame containing GLJPanel on Device # 0 - i.e., the first medical display), everything works fine. Here is the log for this test:

JOGLJPanelTestLog_Device0.txt

4) When I run JoglJPanelContextTestCase with command line parameter "1" (asking to open the JFrame containing GLJPanel on Device # 1 - i.e., the second medical display), everything works fine. Here is the log for this test:

JOGLJPanelTestLog_Device1.txt

So, in summary, using GLJPanel seems to work fine on this workstation, while using GLCanvas seems to work fine only on the second screen, while on the first screen (always connected to the same identical kind of graphics adapter - NVIDIA Quadro K600) it causes a JVM crash.

This exactly reflects the behavior of my VTK-based + JOGL-based application: I managed to set it to force VTK to use GLJPanel instead of GLCanvas, and in this mode it works fine (although with a performance penalty) and doesn't crash on this workstation. On the other side, when I set my application to force VTK to use GLCanvas, my application crashes on the first medical monitor, but works fine on the second medical monitor.

Let me know if all these logs are able to provide additional information and help in diagnosing eventual issues.

Thanks and best regards,

Marco Sambin