From mboxrd@z Thu Jan  1 00:00:00 1970
From: Alexey Fisher <bug-track@fisher-privat.net>
Subject: Re: [regression] suspend/resume problemm
Date: Sat, 19 Mar 2011 17:16:05 +0100
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To: Chris Wilson <chris@chris-wilson.co.uk>
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Am Samstag, den 19.03.2011, 10:28 +0000 schrieb Chris Wilson:
> On Sat, 19 Mar 2011 11:19:38 +0100, Alexey Fisher <bug-track@fisher-privat.net> wrote:
> > Hi,
> > i have regression between 2.6.38 and 2.6.38-05646-g08351fc on 945GME.
> > It can suspend but on resume graphic will freeze.
> > I can access the netbook per ssh. Here is the interisting part of log:
> > [  388.392062] [drm:i915_hangcheck_elapsed] *ERROR* Hangcheck timer
> > elapsed... GPU hung
> > [  388.392083] [drm] capturing error event; look for more information
> > in /debug/dri/0/i915_error_state
> > [  388.399567] [drm:i915_wait_request] *ERROR* i915_wait_request returns
> > -11 (awaiting 2 at 0, next 3)
> > [  388.399825] [drm:i915_reset] *ERROR* Failed to reset chip.
> > [  388.402142] [drm:drm_mode_getfb] *ERROR* invalid framebuffer id
> > 
> > 
> > i915_error_state is in attachment.
> > 
> > Is this regression known? Or should i bisect it?
> 
> No, that's no known. Looks like the GPU was processing commands as
> expected after resume, but the seqno was not updated.
> 
> Try reverting a7a75c8f70d6f6a2f16c9f627f938bbee2d32718 first.

reverting solves this problem. Only error i get is:
[drm:drm_mode_getfb] *ERROR* invalid framebuffer id