Bug#686611: xserver-xorg-video-nouveau: Distorted graphics with GeForce 4200Go (NV28)

["r.ductor@gmail.com" <r.ductor@gmail.com>]

Dear Sven

On Monday 03 September 2012 22:44:54 Sven Joachim wrote:
> On 2012-09-03 21:32 +0200, r.ductor wrote:
> 
> > in a newly installed wheezy (no non-free nvidia drivers around)
> > nouveau gives distorted graphics with a Geforce 4200Go (Dell inspiron
> > 8500), see png attached.
> 
> Seems to be the same problem as #595447, see also
> https://bugs.freedesktop.org/show_bug.cgi?id=50403.

Yes, they seem to describe the same thing, maybe you should merge 595477.

> > The mouse pointer is distorted and the desktop difficultly usable, so
> > that, in absence of suggestions, I will switch to vesa drivers.
> 
> Try disabling acceleration (e.g. boot with nouveau.noaccel=1), it will
> be very slow but should at least support the 1900x1200 resolution on the
> external display, something you probably won't get with the vesa driver.

I tried also

/etc/modprobe.d/nouveau.conf
options nouveau noaccel=1

and then

/etc/modprobe.d/nouveau.conf
options nouveau nofbaccel=1

but the results are worse in both cases: no text is readable, even in tty (and I had to blindly write to get back to original status). I guess that "boot with nouveau.noaccel=1" is equivalent to what I've done. Thanks anyway.

Regards
ric