change video driver

mick.crane

2024-07-10 06:10:01 UTC

Post by mick.crane
On [cough] Trixie, just how do I change the video driver.
I'm using driver xserver-xorg-video-nvidia-tesla-470 on older kernel
There must have been a reason, likely the available resolution.
With kernel 6.9.7-amd64 have to "startx" and then the available
displays in Xfce are low.
"modprobe nvidia" complains cannot find the module.
I revert to 6.7.12 kernel
Do I need to "apt remove" the xserver-xorg-video-nvidia-tesla-470,
Reboot to the 6.9.7-amd64 kernel and reinstall the tesla-470 driver?
Find the /lib/modules/6.7.12 nvidia-tesla-470 module and copy it to
/lib/modules/6.9.7-amd64 ?
What files would I want to find?

booting 6.7.12 kernel
"apt remove xserver-xorg-video-nvidia-tesla-470"
reboot to 6.9.7 kernel and
"apt install xserver-xorg-video-nvidia-tesla-470"
doesn't work, "startx" is low resolution as it reverts to the mesa or
nouveau driver.
I did this remove/install because I thought the nvidia module would be
in the directory of /usr/lib/modules/<kernel-version>
and maybe it couldn't find it but it seems to be in /usr/lib/nvidia.
installing the xserver-xorg-video-nvidia-tesla-470 driver with the 6.9.7
kernel
there is a message that link group glx is broken and on reboot
something flashes by that systemd failed to load the module.
I've no idea what to type to fix whatever is failing so I guess I stay
with the 6.7.12 kernel.

mick