linux-kernel - Re: [Bug #15043] Display goes off with i915.powersave=1 after suspend-resume

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Date:	Sat, 06 Feb 2010 06:53:55 +0100
From:	Soeren Sonnenburg <sonne@...ian.org>
To:	Jesse Barnes <jbarnes@...tuousgeek.org>
Cc:	"Rafael J\. Wysocki" <rjw@...k.pl>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Kernel Testers List <kernel-testers@...r.kernel.org>,
	dri-devel@...ts.sourceforge.net
Subject: Re: [Bug #15043] Display goes off with i915.powersave=1 after
 suspend-resume

On Sat, 2010-02-06 at 06:11 +0100, Soeren Sonnenburg wrote:
> On Fri, 2010-02-05 at 11:29 -0800, Jesse Barnes wrote:
> > On Thu, 4 Feb 2010 21:42:02 +0100
> > "Rafael J. Wysocki" <rjw@...k.pl> wrote:
> > 
> > > On Thursday 04 February 2010, Soeren Sonnenburg wrote:
> > > > On Mon, 2010-02-01 at 01:22 +0100, Rafael J. Wysocki wrote:
> > > > > This message has been generated automatically as a part of a
> > > > > report of recent regressions.
> > > > > 
> > > > > The following bug entry is on the current list of known
> > > > > regressions from 2.6.32.  Please verify if it still should be
> > > > > listed and let me know (either way).
> > > > > 
> > > > > 
> > > > > Bug-Entry	:
> > > > > http://bugzilla.kernel.org/show_bug.cgi?id=15043
> > > > > Subject		: Display goes off with i915.powersave=1
> > > > > after suspend-resume Submitter	: Soeren Sonnenburg
> > > > > <sonne@...ian.org> Date		: 2010-01-10 20:09 (22
> > > > > days old) References	:
> > > > > http://marc.info/?l=linux-kernel&m=126315457519505&w=4
> > > > 
> > > > yes still exists in current git.
> > > 
> > > Thanks for the update.
> > 
> > Just updated the corresponding FDO bug
> > (https://bugs.freedesktop.org/show_bug.cgi?id=24314).  There are some
> > hw bugs related to FBC handling on 945GM though, so we may have to
> > disable it on some machines.
> 
> FYI: With the patch from #14897 it was working for the last day and a
> half at least...

Just after I wrote that email it was happening again. So I take that
back. Flickering and display -> off just happened with that patch.

Soeren
-- 
For the one fact about the future of which we can be certain is that it
will be utterly fantastic. -- Arthur C. Clarke, 1962

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