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[Daedalus Prime <778283@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

Binary package hint: xorg

After upgrading to natty, the screen saver freezes frequently.
Sometimes I can get a terminal with CTL-ALT-Fx, but other times it
requires a power cycle to recover.  Browsing the log files, I noticed
the following 2 messages repeated every 1-2 seconds at the time of the
hang:

May  5 17:45:17 david-laptop kernel: [73747.356256] [drm:i915_hangcheck_elapsed] *ERROR* Hangcheck timer elapsed... GPU hung
May  5 17:45:17 david-laptop kernel: [73747.356266] [drm:kick_ring] *ERROR* Kicking stuck wait on render ring

Note that I was also having severe problems with Unity so have switched
to Classic, which is mostly usable....

ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: xorg 1:7.6+4ubuntu3
ProcVersionSignature: Ubuntu 2.6.38-9.43-generic 2.6.38.4
Uname: Linux 2.6.38-9-generic i686
NonfreeKernelModules: wl
Architecture: i386
CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: compiz
DRM.card0.HDMI.A.1:
 status: disconnected
 enabled: disabled
 dpms: Off
 modes: 
 edid-base64:
DRM.card0.LVDS.1:
 status: connected
 enabled: enabled
 dpms: On
 modes: 1440x900
 edid-base64: AP///////wBMo1cxAAAAAAARAQOAIRV4Cof1lFdPjCcnUFQAAAABAQEBAQEBAQEBAQEBAQEBkiegnFGEDDBAIDMAL74QAAAZAAAADwAAAAAAAAAAAHjmAiMAAAAA/gBXMzQ1QwAxNTRXMQogAAAA/gAXJjlFaZHD/wIBCiAgAHs=
DRM.card0.VGA.1:
 status: connected
 enabled: enabled
 dpms: On
 modes: 1024x768 1024x768 1024x768 1024x768 832x624 800x600 800x600 800x600 800x600 640x480 640x480 640x480 640x480 720x400
 edid-base64: AP///////wAe+fIFr9sAAAgMAQNoHxeC6pe1n1ZNlSUbUFS/7gAxT0VPYU8BAQEBAQEBAQEBZBkAQEEAJjAYiDYAM+YQAAAYAAAA/QA4Sx89CAAKICAgICAgAAAA/ABGUEQxNTIwCiAgICAgAAAA/gBHQVRFV0FZCiAgICAgAK8=
Date: Thu May  5 21:59:58 2011
DistUpgraded: Log time: 2011-04-28 19:18:34.927080
DistroCodename: natty
DistroVariant: ubuntu
DkmsStatus:
 bcmwl, 5.100.82.38+bdcom, 2.6.38-9-generic, i686: installed 
 bcmwl, 5.100.82.38+bdcom, 2.6.35-29-generic, i686: installed 
 bcmwl, 5.100.82.38+bdcom, 2.6.38-8-generic, i686: installed
GraphicsCard:
 Intel Corporation Mobile GM965/GL960 Integrated Graphics Controller (primary) [8086:2a02] (rev 0c) (prog-if 00 [VGA controller])
   Subsystem: Dell Device [1028:022f]
   Subsystem: Dell Device [1028:022f]
InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release i386 (20100429)
MachineType: Dell Inc. Inspiron 1525
ProcEnviron:
 LANGUAGE=en_US:en
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.38-9-generic root=UUID=5486b944-b545-4c3d-b484-d7255620e72d ro quiet splash vt.handoff=7
Renderer: Unknown
SourcePackage: xorg
Symptom: display
Title: Xorg freeze
UpgradeStatus: Upgraded to natty on 2011-04-29 (6 days ago)
dmi.bios.date: 10/27/2009
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A17
dmi.board.name: 0U990C
dmi.board.vendor: Dell Inc.
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvrA17:bd10/27/2009:svnDellInc.:pnInspiron1525:pvr:rvnDellInc.:rn0U990C:rvr:cvnDellInc.:ct8:cvr:
dmi.product.name: Inspiron 1525
dmi.sys.vendor: Dell Inc.
version.compiz: compiz 1:0.9.4+bzr20110415-0ubuntu2
version.libdrm2: libdrm2 2.4.23-1ubuntu6
version.libgl1-mesa-dri: libgl1-mesa-dri 7.10.2-0ubuntu2
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 7.10.2-0ubuntu2
version.xserver-xorg: xserver-xorg 1:7.6+4ubuntu3
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.0-0ubuntu4
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.14.0-4ubuntu7.1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20110107+b795ca6e-0ubuntu7

** Affects: xorg (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: apport-bug compiz-0.9 freeze i386 natty regression-update ubuntu

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https://bugs.launchpad.net/bugs/778283

Title:
  Xorg freeze