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Date: Thu, 30 Dec 2010 00:09:56 +0100
Message-ID: <AANLkTikk3Z_p+-uRB4iF8CUuMAyuKVtPbuht=hQOm2uH@mail.gmail.com>
Subject: Re: Linux 2.6.37-rc8 (no fb)
From: Alex Riesen <raa.lkml@gmail.com>
To: Jesse Barnes <jbarnes@virtuousgeek.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
        Randy Dunlap <randy.dunlap@oracle.com>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        dri-devel@lists.freedesktop.org, Jeff Chua <jeff.chua.linux@gmail.com>
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On Wed, Dec 29, 2010 at 22:53, Jesse Barnes <jbarnes@virtuousgeek.org> wrote:
>> > Doesn't change anything here. Display stays blank.
>>
>> Sounds like your problem is separate from SSC then, more likely related
>> to panel power or backlight control.  Have you tried bisecting for the
>> problem between 2.6.35 and 2.6.36?
>
> Nevermind, I just checked out the bug, looks like it is panel power
> related.  Can you try this patch?

Tried. Does not work.

> If it doesn't work, can you send me the output of intel_reg_dumper from
> before you turn off the display and after you try to turn it back on?

See the links below (sorry, they files are a bit large):

Before running "xset dpms force standby":

  http://vin-soft.org/~raa/public/test/intel_gpu_dump-before

After running "sleep 3"

  http://vin-soft.org/~raa/public/test/intel_gpu_dump-after-suspend

After running "xset dpms force on"

  http://vin-soft.org/~raa/public/test/intel_gpu_dump-after-xset-on

After closing and opening the lid (displays backlight is back)

  http://vin-soft.org/~raa/public/test/intel_gpu_dump-after-lid
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