[Nouveau] Blank screen at startup (conflict with VESA VGA)

[Marcin Slusarz]

Ok, let's CC nouveau list back.

On Mon, Apr 12, 2010 at 12:31:58PM +0200, Didier Spaier wrote:
> >> One thing I didn't check before sending my last mail: can I go back
> >> to console mode after having started X with say, the nv X module ?
> >>
> >> Unfortunately this doesn't work: be it from Fluxbox or KDE, when 
> >> I logout or use Alt+Ctrl+Fn I see a black screen.
> > 
> > nv or nouveau?
> > running nv (X) with nouveau kernel module is unsupported
> 
> Running nv (X).
> 
> I understand that running nv (X) with nouveau kernel module is unsupported,
> but if a nVidia GPU is detected the nouveau kernel module is automatically
> loaded during startup (unless blacklisted, of course).
> 
> This don't prevent to run X with the nv module (in a distribution in which
> nouveau (X) is not available, for instance), but going back to console mode
> doen't work in that case.
> 
> Is there any way to make it working, as some distributions do not include
> (yet) all components needed for nouveau (mainly matching libdrm and X module) ?

I'm not aware of any trick to make both nv and nouveau working.
Maybe there should be a way to prevent nv (and vesa, but not fbdev) from loading
when KMS is in use?

>  > nouveau kernel module works only with nouveau and fbdev X drivers
> 
> I'll will try with fbdev then.



Marcin