Bug#761182: xserver-xorg-video-nouveau: NV94: screen black after resume from S3, floods of kernel errors

[Sven Joachim <svenjoac@gmx.de>]

On 2014-09-21 19:45 +0200, Zack Weinberg wrote:

> Sorry for the delay getting back to you.  nouveau.nofbaccel=1
> eliminates the kernel-level errors, but the screen still does not turn
> back on.  /var/log/messages shows some new errors instead:
>
> Sep 21 13:37:42 moxana gdm-Xorg-:0[781]: (WW) NOUVEAU(0):
> nouveau_dri2_flip_event_handler: Pageflip has impossible msc 817307 <
> target_msc 817308
> Sep 21 13:37:42 moxana gdm-Xorg-:0[781]: (WW) NOUVEAU(0):
> nouveau_dri2_flip_event_handler: Pageflip has impossible msc 817307 <
> target_msc 817308

I don't see those, but then I don't use gdm or a compositing window
manager.  Does it help to turn off the "PageFlip" option in xorg.conf
(see nouveau(4))?

> I can also confirm that suspend+resume works fine with the newer
> driver and kernel 3.14, so probably this should be reassigned to the
> kernel package.

There's a newer kernel in experimental, could you please test 3.17-rc5?

Thanks,
       Sven