From mboxrd@z Thu Jan  1 00:00:00 1970
From: Dmitry Nezhevenko <dion@inhex.net>
Subject: Re: Another GPU hang
Date: Sun, 22 May 2011 14:49:30 +0300
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To: Chris Wilson <chris@chris-wilson.co.uk>
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On Sun, May 22, 2011 at 09:02:43AM +0100, Chris Wilson wrote:
> On Sun, 22 May 2011 01:47:01 +0300, Dmitry Nezhevenko <dion@inhex.net> wrote:
> > I've just tried to reproduce it again. It looks like I'm unable to do it when
> > external display (DVI connected via DMI->HDMI cable) is turned off via xrandr. 
> > 
> > However if display is active (LVDS turned off and HDMI1 active) it was
> > easy enough to reproduce this by just playing with HDMI connector. So
> > after 5-6 attempts to plug/unplug monitor I've got hung again:
> 
> Ok, and I just got another bug (37450) which makes me think that, at
> least, part of this problem is due to the stale DPMS values. (We depend
> upon the DPMS state for not feeding WAITs onto a disabled pipe).
> https://bugzilla.kernel.org/show_bug.cgi?id=24982
> -Chris
> 

There is a reference to commit 811aaa55ba21ab37407018cfc01770d6b037d3fb in
bugreport. I've double checked that this commit is present in 2.6.39
kernel I'm using. So this is probably not applicable to me. 

Should I create bugreport at kernel.org for this issue?

PS. In case if you've some patch or other things to do, I can try it. 
 
-- 
WBR, Dmitry