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[Launchpad Bug Tracker <698120@xxxxxxxxxxxxxxxxxx>]

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Lenovo X301 laptop, 4G ram, Intel(R) Core(TM)2 Duo CPU U9400 @ 1.40GHz.
Intel GM45 Express graphic chipset, Kubuntu 10.4.1 LTS Lucid 32 bits,
Xorg driver "intel"

# uname -a
Linux wall-e 2.6.37-12-generic-pae #26~lucid1-Ubuntu SMP Wed Jan 5 22:54:38 UTC 2011 i686 GNU/Linux

# version.log
Ubuntu 2.6.37-12.26~lucid1-generic-pae 2.6.37

Symptoms:
When starting X with the external screen attached to the VGA connector, I can't type anything in the login/password at the kdm greeter dialog. I can switch to VT1. Then I can kill kdm. Restarting kdm gives fatal error with technical messages about gem.

Starting without the external screen is okay. If I plug the external
screen and start using it (xrandr), the cursor becomes corrupted when it
is inside a konsole window on the laptop screen, but gets back to normal
outside this window. Then X freezes after a while.

Working single-headed without plugging the external screen at all is
fine so far.

Previous versions  2.6.35 and 2.6.32 did not do this
Previous version 2.6.37-11 already had the problem.

ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: linux-image (not installed)
Regression: Yes
Reproducible: Yes
ProcVersionSignature: Ubuntu 2.6.37-12.26~lucid1-generic-pae 2.6.37
Uname: Linux 2.6.37-12-generic-pae i686
Architecture: i386
Date: Thu Jan  6 14:52:34 2011
ProcEnviron:
 LANGUAGE=
 PATH=(custom, user)
 LANG=fr_FR.UTF-8
 SHELL=/bin/bash
SourcePackage: linux

** Affects: xserver-xorg-video-intel (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: apport-bug i386 kconfig lucid needs-upstream-testing regression-potential
-- 
Dual head corruption on 2.6.37 lucid backport
https://bugs.launchpad.net/bugs/698120
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