'vglserver_config +egl' configures the system so that it can only use VirtualGL's EGL back end. VirtualGL tries to use the GLX back end with a 3D X server by default.  That probably worked the first time because you were logged into the machine locally, and Display :0 was available, but it became unavailable when you rebooted.  If you only need to use VirtualGL's EGL back end, then pass '-d egl' or '-d {path_to_DRI_device}' to vglrun or set the VGL_DISPLAY environment variable to 'egl' or the path of a DRI device.  If you need to use both the GLX and EGL back ends, then run 'vglserver_config +glx' to configure the system.

On 2/15/24 5:07 AM, Roland S wrote:
Hi,

New server.
RedHat 8.9, VirtualGL 3.1, NVIDIA A2 with driver 545.23.08
Running XFCE desktop in ThinLinc VNC manager.

running
init 3
/opt/VirtualGL/bin/vglserver_config +egl +s +f
init 5

vglrun /opt/VirtualGL/bin/glxspheres64
works fine, FPS 600
reboot
vglrun doesnt work

So vglserver_config will not survive a reboot
Whats missing?

- Roland
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