Bug#988200: xserver-xorg-video-nvidia: user-specified xorg configuration can't find nvidia driver

[Andreas Beckmann]

On 26/12/2023 18.58, Ian Eure wrote:
> Alternative 'glx':
> glx - manual mode
>    link best version is /usr/lib/nvidia
>    link currently points to /usr/lib/mesa-diverted

There we are ;-)

You have the nvidia driver installed, but it is disabled (i.e. only MESA 
gets used). Therefore no nvidia driver alternatives are placed anywhere 
(and manually attempting to use it (with your custom xorg.conf) fails by 
not finding it).
Yes, there are use cases where the nvidia driver needs to be installed 
(even multiple variants of it in parallel) without being enabled.

The alternatives must have been modified manually, as the packaging will 
always leave them in "auto" mode. Of course the packages won't override 
such local customization.

You probably want to run
   update-glx --auto nvidia
   update-glx --auto glx
to re-enable automatic control of the alternatives by the system.


Andreas