Ubuntu
ubuntu-drivers-common package

  1. Bug #1394653
  2. Comment #6

Comment 6 for bug 1394653

Revision history for this message
Paul Kenyon (rixoff) wrote :

I've been struggling with this for the past year, but never thought to file a bug report. My use case is a little different, but the base request - allow customization of the Xorg config - is the same.

My system is an Intel Skull Canyon NUC with Iris Pro integrated graphics. I also have an external GPU box with an Nvidia 1080 Ti that connects to the system with a Thunderbolt interface. Two displays are connected - one to the main system's port, and one to external video card's port.

The Nvidia driver requires an option added to the Xorg config to use the external GPU:

    Option "AllowExternalGpus" "True"

If this is not set, the Nvidia section of the Xorg config will fail, and this cascades to Xorg not starting (i.e. login screen immediately drops back to login screen.) Currently I work around this by editing /usr/share/X11/xorg.conf.d/11-nvidia-prime.conf, which is generated by gpu-manager. The problem comes when a system update occurs, and gpu-manager is run again, re-generating the config file. Thus, it would be beneficial to have a way to save customizations of gpu-manager's configs.