Re: [VirtualGL-Users] Woes with onboard VGA

['DRC' via VirtualGL User Discussion/Support]

You probably need to configure the X server such that the Intel GPU is on Screen 0 and the nVidia GPU is on Screen 1. (You can probably make the nVidia GPU headless, so only the Intel GPU is actually driving a display.) Then you can set VGL_DISPLAY=:0.1 to use VGL with the nVidia GPU. However, please note that you cannot log into the local X server (the “3D X server”) while users are using VirtualGL, as doing so would cause all of VirtualGL’s GLX back end connections to the 3D X server to hang. VirtualGL’s EGL back end addresses that problem by avoiding the use of a 3D X server altogether, but the EGL back end still has some compatibility issues that are being ironed out. I generally recommend using the EGL back end only if you have verified that it works properly for the entire suite of 3D applications that your organization intends to use. Unfortunately, I cannot provide more specific advice without diagnosing the specific system, which is a paid service. On Dec 20, 2023, at 6:35 AM, 'Torkil Svensgaard' via VirtualGL User Discussion/Support <virtualgl-users@googlegroups.com> wrote: Hi  We have using VirtualGL on thin client servers for a while on our HPC installation  and it works well. However, when the OS (RHEL 9.3) / xorg starts up it disables onboard VGA which also makes IPMI Remote Console unavailable.  I can get VGA back by doing these changes: " # cat /etc/X11/xorg.conf.d/10-nvidia.conf Section "OutputClass"     Identifier "nvidia"     MatchDriver "nvidia-drm"     Driver "nvidia"     Option "AllowEmptyInitialConfiguration"     Option "PrimaryGPU" "no" <--- changed from yes     Option "SLI" "Auto"     Option "BaseMosaic" "on" EndSection Section "OutputClass"     Identifier "intel"     MatchDriver "i915"     Driver "modesetting"     Option "PrimaryGPU" "yes" <---- added this line EndSection " But then VirtualGL stops working. Any suggestions on how to fix this?  Reinstalled made no difference. Mvh. Torkil -- 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/4277950b-4fa9-43a9-bffd-26ae40e9f2ffn%40googlegroups.com. -- 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/183AEB63-3F61-4AED-9B4E-09F86CE4F0F4%40virtualgl.org.