linux-kernel - [Regression] i915: Commit 0e442c60 causes flickering in 2.6.32

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Date:	Wed, 09 Dec 2009 22:44:11 +0530
From:	David John <davidjon@...ontk.org>
To:	Jesse Barnes <jbarnes@...tuousgeek.org>
CC:	eric@...olt.net, hohndel@...radead.org, airlied@...il.com,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: [Regression] i915: Commit 0e442c60 causes flickering in 2.6.32

Hi All,

I have a Dell Inspiron with a GM45 Express chipset and an Acer 23"
display connected to the VGA out. I switch off the internal LVDS LCD
on X start-up with xrandr. X works fine but if I switch to a console,
it flickers horribly with the text all pushed to the right. Switching
back to X causes X to start flickering as well. Turning the internal
LVDS back _on_ solves the issue. It works like a switch so it is easily
reproducible. Reverting commit 0e442c60 also fixes the problem.

There isn't anything unusual in the kernel or X logs that I could see,
but they're attached.

Regards,
David.

View attachment "kernel.log" of type "text/plain" (38703 bytes)

View attachment "Xorg.0.log" of type "text/plain" (81384 bytes)

View attachment "config-2.6.32" of type "text/plain" (89745 bytes)