linux-kernel - Re: [PATCH] drm/i915: disable LVDS downclock by default

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Date:	Fri, 15 Jan 2010 10:54:05 +0200
From:	Pekka Enberg <penberg@...helsinki.fi>
To:	Nick Bowler <nbowler@...conx.ca>
Cc:	linux-kernel@...r.kernel.org,
	Jesse Barnes <jbarnes@...tuousgeek.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: [PATCH] drm/i915: disable LVDS downclock by default

Hi,

(Fixing CC.)

On Fri, Jan 15, 2010 at 3:15 AM, Nick Bowler <nbowler@...conx.ca> wrote:
> On Thu, 14 Jan 2010 12:48:02 -0800, Jesse Barnes wrote:
>> Nick and Pekka, please try this out and reply with your Tested-by
>> (assuming it works, if not I'll fix it up).
>
> Not surprisingly, your patch solves the issues on my T500, and allows me
> to re-enable the broken behaviour by adding the i915.lvds_downclock=1
> boot option.
>
> Tested-by: Nick Bowler <nbowler@...iptictech.com>

So, any suggestions how I should proceed with figuring out the
"flashing" problem I still see with Jesse's patch? I can do a full git
bisect if it comes to that but it's going to be bit difficult to
determine if a commit is good or bad as there seem to be _two_
different problems both of which cause screen flickering.

Heelp!

                        Pekka
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