nouveau/ NV11: 3.12 freezes if X.org is started headless

Stefan Lippers-Hollmann s.L-H at gmx.de
Tue Nov 26 17:35:14 PST 2013


Hi

On Wednesday 27 November 2013, Ilia Mirkin wrote:
> On Tue, Nov 26, 2013 at 7:18 PM, Stefan Lippers-Hollmann <s.L-H at gmx.de> wrote:
> > Hi
> >
> > On Tuesday 26 November 2013, Ilia Mirkin wrote:
> >> On Tue, Nov 26, 2013 at 6:03 PM, Stefan Lippers-Hollmann <s.L-H at gmx.de> wrote:
> >> > v3.11 is fine, with and without monitor attached.
> >> > v3.12 is fine as long as X.org isn't started (but may fail to reboot
> >> >       cleanly). If a monitor is connected I don't observe any problems,
> >> >       it freezes without a monitor connected.
> >> > v3.13-rc1-95-gb975dc3 appears not to freeze without a monitor anymore
> >> >       (I didn't confirm that it's fine with a monitor attached), but I
> >> >       end up with the following Oops (this is before X.org is started).
> 
> One more idea -- try it with nouveau.runpm=0 -- I've had some odd
> results with it on my older cards (but I don't remember hangs, but I
> also didn't spend a lot of time on it, just plopped the option in and
> moved on). This is a feature that got in in 3.12, and is really the
> only major nouveau-affecting change in that kernel for your card
> revision.

You're spot on, that does the trick.

# cat /sys/module/nouveau/parameters/agpmode 
-1
# cat /sys/module/nouveau/parameters/runpm 
0

  v3.13-rc1-95-gb975dc3 
+ http://cgit.freedesktop.org/~darktama/nouveau/commit/?id=0397aaaa009092427dc60aea8b3c21c00526d8ba
+ nouveau.runpm=0
is now stable, with and without a monitor attached; as is

  3.12.1 || v3.12.1-62-g4615252 (stable-queue.git)
+ nouveau.runpm=0

I don't need to override the agpmode parameter.

Thanks a lot!

Regards
	Stefan Lippers-Hollmann


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