From mboxrd@z Thu Jan  1 00:00:00 1970
From: Jani Nikula <jani.nikula@linux.intel.com>
Subject: Re: 3.11.0+ Laptop screen goes blank during kernelboot
Date: Tue, 10 Sep 2013 14:00:08 +0300
Message-ID: <87ob819c1z.fsf@intel.com>
References: <522AF1B5.4070605@xmsnet.nl>
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To: Hans de Bruin <jmdebruin@xmsnet.nl>, intel-gfx <intel-gfx@lists.freedesktop.org>
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Hi Hans -

On Sat, 07 Sep 2013, Hans de Bruin <jmdebruin@xmsnet.nl> wrote:
> Since a day or two the screen of my laptop goes blank when the kernel 
> switches resolution in the boot process. Happily the x-server turns it 
> on again.

Please try the drm-intel-nighly branch of
git://people.freedesktop.org/~danvet/drm-intel

I suspect this might be a regression from upstream
commit 045ac3b5629d9711531a408e92f9074db6afe7ce
Author: Jesse Barnes <jbarnes@virtuousgeek.org>
Date:   Tue May 14 17:08:26 2013 -0700

    drm/i915: add encoder get_config function v5

fixed by
commit 775e18a9561725e07ea68ada82880013e7b70cb7
Author: Imre Deak <imre.deak@intel.com>
Date:   Tue Jul 30 13:36:32 2013 +0300

    drm/i915: make user mode sync polarity setting explicit

in drm-intel-nightly.

The fix seems to apply cleanly on 3.11 too, could try that also.


BR,
Jani.


-- 
Jani Nikula, Intel Open Source Technology Center