Slow fps with Quadro RTX 4000

[Bennie Lunsford]

I have loaded virtual gl on a RHEL 7.9 machine with a quadro rtx 4000 card. I also have a 7.8 machine with the same card. Only getting 1FPS running GLXgears through VGL. 

These machines are identical, but one was built a few months ago. I never noticed the slow frame rate, because the machine isn't production yet. 

I got this error while setting up the new machine and I am not sure if I got it on the other one during setup. I dropped to init 3 and tried to run the command, but it fails too. I also killed all X running to try and run the command with no luck. 

Any help would be appreciated.

... Modifying /etc/security/console.perms to disable automatic permissions

    for DRI devices ...

... Creating /etc/modprobe.d/virtualgl.conf to set requested permissions for

    /dev/nvidia* ...

... Attempting to remove nvidia module from memory so device permissions

    will be reloaded ...

rmmod: ERROR: Module nvidia is in use by: nvidia_modeset

... Granting write permission to /dev/dri/card0 for all users ...

... Modifying /etc/X11/xorg.conf.d/99-virtualgl-dri to enable DRI permissions

    for all users ...

... /etc/X11/xorg.conf has been saved as /etc/X11/xorg.conf.orig.vgl ...

... Modifying /etc/X11/xorg.conf to enable DRI permissions

    for all users ...

... /etc/gdm/Init/Default has been saved as /etc/gdm/Init/Default.orig.vgl ...

... Adding xhost +LOCAL: to /etc/gdm/Init/Default script ...

... Creating /usr/share/gdm/greeter/autostart/virtualgl.desktop ...

... Enabling XTEST extension in /etc/gdm/custom.conf ...

... Setting default run level to 5 (enabling graphical login prompt) ...

... Commenting out DisallowTCP line (if it exists) in /etc/gdm/custom.conf ...

Done. You must restart the display manager for the changes to take effect.

IMPORTANT NOTE: Your system uses modprobe.d to set device permissions. You

must execute rmmod nvidia with the display manager stopped in order for the

new device permission settings to become effective.

[DRC]

Known issue with nVidia 440.xx.  Refer to:

https://github.com/VirtualGL/virtualgl/issues/120#issuecomment-614331680

https://github.com/VirtualGL/virtualgl/issues/120#issuecomment-624904532

for workaround and further information.

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[Bennie Lunsford]

Thank you that worked.