Following is the log for vglserver_config,
1) Configure server for use with VirtualGL
2) Unconfigure server for use with VirtualGL
X) Exit
Choose:
1
Restrict 3D X server access to vglusers group (recommended)?
[Y/n]
Restrict framebuffer device access to vglusers group (recommended)?
[Y/n]
Disable XTEST extension (recommended)?
[Y/n]
... Creating vglusers group ...
groupadd: group 'vglusers' already exists
Could not add vglusers group (probably because it already exists.)
... Creating /etc/opt/VirtualGL/ ...
... Granting read permission to /etc/opt/VirtualGL/ for vglusers group ...
... 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_uvm nvidia_modeset
... Granting write permission to /dev/nvidia-uvm /dev/nvidia-uvm-tools
/dev/nvidia0 /dev/nvidiactl for vglusers group ...
chmod: changing permissions of '/dev/nvidia-uvm': Read-only file system
chmod: changing permissions of '/dev/nvidia-uvm-tools': Read-only file
system
chmod: changing permissions of '/dev/nvidiactl': Read-only file system
chown: changing ownership of '/dev/nvidia-uvm': Read-only file system
chown: changing ownership of '/dev/nvidia-uvm-tools': Read-only file system
chown: changing ownership of '/dev/nvidiactl': Read-only file system
... Granting write permission to /dev/dri/card0 for vglusers group ...
... Modifying /etc/X11/xorg.conf.d/99-virtualgl-dri to enable DRI
permissions
for vglusers group ...
... Modifying /etc/X11/xorg.conf to enable DRI permissions
for vglusers group ...
... Adding vglgenkey to /etc/gdm/Init/Default script ...
... Creating /usr/share/gdm/greeter/autostart/virtualgl.desktop ...
... Disabling 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.
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