[Intel-gfx] i915: GPU hung

[Knut Petersen]

Hi everybody!

Steps to reproduce problem:

1: start X11
2: open e.g. konsole window (not maximized)
3: move window around on screen

Problem:

With todays X (git) , the screen freezes within seconds,
mouse and keyboard are unusable, a network
login shows X11 eating all available cpu time.
Find the full Xorg log and the error messages
taken from the kernel log attached.

With X.Org X Server 1.9.3 (opensuse 11.4)
the screen will be corrupted within seconds,
the system and X might freeze, if it does not freeze there
are messages about newly detected monitors,
EDID errors, etc.

Systems: several AOpen i915GMm-hfs motherboards
(these are desktop mobos with mobile chipset and
Pentium M (Dothan)).

Tested configurations:

Working system  #1 (opensuse 11.2):
============================
X.Org X Server 1.6.5
Release Date: 2009-10-11
X Protocol Version 11, Revision 0
Build Operating System: openSUSE SUSE LINUX
Current Operating System: Linux linux 2.6.38.2-kape #2 PREEMPT Mon Mar 28 15:29:53 CEST 2011 i686
Build Date: 23 September 2010  03:43:55PM

Working system #2 (opensuse 11.3):
============================
X.Org X Server 1.8.0
Release Date: 2010-04-02
[   863.196] X Protocol Version 11, Revision 0
[   863.196] Build Operating System: openSUSE SUSE LINUX
[   863.196] Current Operating System: Linux linux-iffr 2.6.38-kape #40 PREEMPT Fri Mar 18 15:06:22 CET 2011 i686
[   863.196] Kernel command line: root=/dev/hda2 acpi_enforce_resources=lax
[   863.196] Build Date: 19 August 2010  03:34:17PM

Broken system #1 (opensuse 11.4, standard X):
=====================================
X.Org X Server 1.9.3
Release Date: 2010-12-13
[  1031.690] X Protocol Version 11, Revision 0
[  1031.690] Build Operating System: openSUSE SUSE LINUX
[  1031.690] Current Operating System: Linux golem 2.6.38.2-kape #5 PREEMPT Thu Mar 31 13:33:10 CEST 2011 i686
[  1031.690] Kernel command line: root=/dev/sdb5 acpi_enforce_resources=lax drm.debug=0 3
[  1031.691] Build Date: 22 February 2011  10:15:34PM

Broken system #2 (opensuse 11.4, todays git - X 11):
=========================================
X.Org X Server 1.10.99.1
Release Date: unreleased
[ 21052.698] X Protocol Version 11, Revision 0
[ 21052.698] Build Operating System: Linux 2.6.38.2-kape i686
[ 21052.698] Current Operating System: Linux linux-iffr 2.6.38.2-kape #6 PREEMPT Sun Apr 3 17:09:30 CEST 2011 i686
[ 21052.698] Kernel command line: root=/dev/hda2 acpi_enforce_resources=lax
[ 21052.698] Build Date: 07 April 2011  07:53:09AM

cu,
 Knut
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