OK, glad it's working. The only time I've ever seen 0x0502 is when the 3D X server was non-headless and someone switched to a different virtual console on the server, thus effectively disconnecting the GPU from the physical display. However, I suppose that error could also occur if the framebuffer device permissions were incorrect, and running vglserver_config would definitely fix that. It may not be clear in the documentation, but it's always a good idea to re-run vglserver_config after updating the nVidia or AMD proprietary drivers, because those driver installers may change some of the device permissions.
On 8/11/17 2:02 PM, Wei Liu wrote: > hmm. Right after I sent the message, I fixed it by re-run > vglserver_config. No idea why I need to re-run it after reboot, but now > I can have 3D application working. > > Thanks! > > On Friday, August 11, 2017 at 2:42:10 PM UTC-4, Wei Liu wrote: > > I recently upgrade my client side from windows 7 to windows 10, and > suddenly the vnc session that I created with TurboVNC stop working. > Here is the error that I got when running TurboVNC viewer on new > Windows 10 ( the TurboVNC version is 2.1.1): > > > ===== begin error ===== > ... > QPainter::begin: Paint device returned engine == 0, type: 3 > QPainter::setPen: Painter not active > QPainter::setFont: Painter not active > QPainter::begin: Paint device returned engine == 0, type: 3 > QPainter::setPen: Painter not active > QPainter::setFont: Painter not active > QOpenGLShaderProgram: could not create shader program > QOpenGLShader: could not create shader > Could not link shader program: > "" > [VGL] ERROR: OpenGL error 0x0502 > [VGL] ERROR: in readPixels-- > [VGL] 454: Could not Read Pixels > ===== end of error ======= > > Any one has seen this before? Any insights? This tool is now > critical to me. (I just verified that other people has same issue, > so it's not my new Windows 10's problem, but something on server > side. I rebooted the server recently) > > Thank you very much. -- You received this message because you are subscribed to the Google Groups "VirtualGL User Discussion/Support" group. To unsubscribe from this group and stop receiving emails from it, send an email to virtualgl-users+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/virtualgl-users/2950fed9-30b6-dcaa-2f1c-7be344d3ac21%40virtualgl.org. For more options, visit https://groups.google.com/d/optout.
