Date: Mon, 26 Oct 2009 08:25:25 +0100
From: Paul Rolland <rol@as2917.net>
To: Jesse Barnes <jbarnes@virtuousgeek.org>
Cc: Frans Pop <elendil@planet.nl>, Theodore Tso <tytso@mit.edu>,
       "Carlos R. Mafra" <crmafra2@gmail.com>, Eric Anholt <eric@anholt.net>,
       linux-kernel@vger.kernel.org, Keith Packard <keithp@keithp.com>,
       Chris Wilson <chris@chris-wilson.co.uk>
Subject: Re: 2.6.32 regression (bisected): Video tearing/glitching with T400
 laptops
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In-Reply-To: <20091019101526.5496d5ed@jbarnes-x200>
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Organization: AS2917.net
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Hello,

On Mon, 19 Oct 2009 10:15:26 +0900
Jesse Barnes <jbarnes@virtuousgeek.org> wrote:

> On Mon, 19 Oct 2009 10:04:37 +0900
> Jesse Barnes <jbarnes@virtuousgeek.org> wrote:
> 
> > On Thu, 15 Oct 2009 00:02:04 -0400
> > Theodore Tso <tytso@mit.edu> wrote:
> > 
> > > On Wed, Oct 14, 2009 at 10:26:45PM -0400, Theodore Tso wrote:
> > > > 
> > > > If I need to live with a display glitch every 5-10 minutes or so
> > > > to get better power savings, I'll take it....
> > > > 
> > > 
> > > While mail reading and composing responses in a tty based mail
> > > reader (mutt/emacs -nw), I'm seeing display glitches every 3-5
> > > minutes.  Each time it's quite minor so it's the sort of thing
> > > which is definitely "blink at the wrong time and you'll miss it".
> > > 
> > > Being a battery lifetime freak, I'll definitely take the tradeoff,
> > > but given that it occurs even when I'm plugged into AC mains, I
> > > could see some users being annoyed by it, and I could see them
> > > wanting to be able to switch off the feature when they are on AC,
> > > if we find a complete fix.
> > 
> > Ok, hopefully this is the "correct" patch.  It works for me, can you
> > give it a try?
> 
> Here's an even more "final" patchset with some spurious hunks removed.
> 

This is also fixing the problem I had with my Vostro !:)
Thanks Frans for pointing my to this patches.

Tested-By: Paul Rolland <rol@as2917.net>

Regards,
Paul


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