[Intel-gfx] regression after: drm/i915: Warn if we run out of FIFO space for a mode

[Alexey Fisher]

Hallo all,
i have regression coused by this patch:

commit b9421ae8f30958deea98d71477b4a77a066856b4
Author: Chris Wilson <chris at chris-wilson.co.uk>
Date: Mon Jul 19 21:46:08 2010 +0100

drm/i915: Warn if we run out of FIFO space for a mode

Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
Cc: Jesse Barnes <jbarnes at virtuousgeek.org>
Signed-off-by: Eric Anholt <eric at anholt.net>


If i start openarena, i'll get black background with big mousepointer
(it can be moved). Nothing else happening, i can't kill openarena or
reboot xserver.

reverting this patch, solve the problem.

My hardware Intel DG45ID board, Core 2 Duo CPU E8400, 4 GB RAM.
Ubuntu 10.10 64bit. 

 apt-cache policy  xserver-xorg-video-intel
xserver-xorg-video-intel:
  Installiert: 2:2.12.0+git20100730.0be3e95c-0ubuntu0sarvatt
  Kandidat:    2:2.12.0+git20100801.fe7dee7f-0ubuntu0sarvatt
  Versionstabelle:
     2:2.12.0+git20100801.fe7dee7f-0ubuntu0sarvatt 0
        500 http://ppa.launchpad.net/xorg-edgers/ppa/ubuntu/
maverick/main amd64 Packages
 *** 2:2.12.0+git20100730.0be3e95c-0ubuntu0sarvatt 0
        100 /var/lib/dpkg/status
     2:2.12.0-1ubuntu2 0


Xorg crashes with this message:
[   233.461] [mi] EQ overflowing. The server is probably stuck in an
infinite loop.


Regards,
	Alexey
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