Bug#798207: nvidia-legacy-340xx-driver: Wrong module loaded, X fails to start when legacy installed alongside mainline driver

Luca Boccassi luca.boccassi at gmail.com
Sat Sep 19 01:10:15 UTC 2015

On Sat, 2015-09-19 at 02:45 +0200, Andreas Beckmann wrote:
> On 2015-09-19 00:05, Luca Boccassi wrote:
> >> In the next round you could try to add this to
> >> /etc/nvidia/nvidia-modprobe.conf:
> >>
> >> alias	pci:v000010DEd00000E00sv*sd*bc04sc80i00*	nvidia
> >> alias	pci:v000010DEd00000AA3sv*sd*bc0Bsc40i00*	nvidia
> >> alias	pci:v000010DEd*sv*sd*bc03sc02i00*		nvidia
> >> alias	pci:v000010DEd*sv*sd*bc03sc00i00*		nvidia
> > 
> > This works and the right module is loaded, but then Gnome crashes
> > because of the error below :-( Still, progress is progress.
> if gdm crashes, try e.g. kdm/xdm/...
> So something tries to load the first fitting driver for some piece of
> hardware discovered. Duplicating the aliases that are already built into
> the module (well both modules in your test case) gives them a higher
> precendence.

Yes, and unfortunately there's nothing in the journal that points to
what that is. The first message mentioning the Nvidia module happens,
looking at the timestamps, at the same time as all the other devices are
discovered and the drivers loaded (intel sound chip, usb, etc).

> If you drop the aliases again and instead create
> /etc/modules-load.d/nvidia.conf with the content "nvidia" to have to
> module autoloaded on boot - does this work?

I'll try this next.

> Have you tried to use the driver without manual Xorg configuration? I.e.
> tested that starting X with nvidia driver automatically works with
> glx-alternative-nvidia 0.5.90. (Requires the nvidia kernel module to be
> loaded before X is started)

Yes, the tests I've done were without any xorg.conf configuration.

Kind regards,
Luca Boccassi
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