From: Dave Airlie <airlied@redhat.com>
Date: Wed, 4 Aug 2010 05:52:19 +0000 (+1000)
Subject: i915: disable DAC on Ironlake also when doing CRT load detection.
X-Git-Tag: v2.6.36-rc2~2^2~6
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d5dd96cb280993a6096b42ab082f9cfd9c7ae0bd;p=pandora-kernel.git

i915: disable DAC on Ironlake also when doing CRT load detection.

Like on Sandybridge, disabling the DAC here when doing CRT load detect
avoids forever hangs waiting on the hardware.

test procedure on HP 2740p:
boot with no VGA plugged in, start X,
plug in VGA monitor (1280x1024)
chvt 3
machine hangs waiting forever.

Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
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