linux-kernel - Re: no video output after suspend after "drm/i915: force mode set at lid open time"

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Message-ID: <20091026090234.32ae7656@jbarnes-g45>
Date:	Mon, 26 Oct 2009 09:02:34 -0700
From:	Jesse Barnes <jbarnes@...tuousgeek.org>
To:	Peter Stuge <peter@...ge.se>
Cc:	Riccardo Magliocchetti <riccardo.magliocchetti@...il.com>,
	linux-kernel@...r.kernel.org, mjg@...hat.com, eric@...olt.net
Subject: Re: no video output after suspend after "drm/i915: force mode set
 at lid open time"

On Mon, 26 Oct 2009 02:52:30 +0100
Peter Stuge <peter@...ge.se> wrote:
> (Before this I tried 2.6.31.1 with KMS, but it didn't do Xv.)
> 
> (Oh, and Xv performance with a83a44+1556c6 is lower than 2.6.30 nofb,
> but that's somewhat secondary. MPlayer performs worse than VLC, but
> both are worse than MPlayer with 2.6.30+2.7.1.)
> 
> Can I help solve this somehow?

I posted a patch that fixed an X40 I was testing:
drm/i915: save/restore BLC histogram control reg across suspend/resume

can you give it a try and see if it works for you?

It may not be related to Riccardo's report, since the above patch isn't
really related to the lid switch problem.

-- 
Jesse Barnes, Intel Open Source Technology Center
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