On Wednesday 13 November 2019 04:40:53 am Nick Koretsky wrote:
> On Wed, 13 Nov 2019 10:04:39 +0100
>
> "ajh-valmer" <ajh.valmer@...> wrote:
> > Here is the result of  "grep EE /var/log/Xorg.0.log" :
> >
> >  (WW) warning, (EE) error, (NI) not implemented, (??) unknown.
> > [   350.468] (EE) Failed to load module "nv" (module does not exist, 0)
> > [   350.472] (EE) Failed to load module "vesa" (module does not exist, 0)
> > [   350.501] (EE) [drm] Failed to open DRM device for (null): -22
> > [   350.502] (EE) [drm] Failed to open DRM device for pci:0000:02:00.0:
> > -22 [   350.503] (EE) Unable to find a valid framebuffer device
> > [   350.504] (EE) Screen 0 deleted because of no matching config section.
> > [   350.520] (II) Initializing extension MIT-SCREEN-SAVER
> > [   350.525] (EE) Failed to initialize GLX extension
> > (Compatible NVIDIA X driver not found)
> >
> > Shame on me, many errors.
> > I want to install the nvidia driver non-free,
> > this one is installed, downloaded on nvidia site :
> > "NVIDIA-Linux-x86-340.107.run"
>
> Oops. Never install nvidia .run files in debian, ever. You fuck up all the
> gl redirection libs this way. Only install nvidia drivers from debian
> repo (self compile using apt-src from experimental if you really need the
> latest ones). You now need to uninstall using nvidia installer, force
> reinstall all the gl related stuff (mesa, etc), than install nvidia drivers
> from repo.

From personal experience with MX Linux (non-systemd Debian 9 stretch), I 
concur with Nik and Nick (and I'll add nvidia is a twitchy little asshat).

- Get a working system with nouveau.
- Install nvidia only from repo.

You probably can find info on the MX forums on how to completely remove 
nvidia.  Thankfully when I needed to do it the MX script 'just' worked, so I 
can't give you any specifics.

Best,
Michael

https://forum.mxlinux.org/