Public bug reported:
I have had recurring screen freezes ever since upgrading to 12.10, on
the order of days or weeks apart. It happened two or three times,
several weeks apart, while running 3.5 kernels; then 4 times in 10 days
running 3.2 (to test a filesystem problem); then today (6 days later),
running 3.8.
When it occurs, it's always while switching windows. The switcher stays
on the screen, and usually it just freezes. Today it flipped to text
mode to display a GPU lockup error, then flipped back to a corrupted
graphics mode.
ProblemType: Bug
DistroRelease: Ubuntu 12.10
Package: xorg 1:7.7+1ubuntu4
Uname: Linux 3.8.0-996-generic i686
.tmp.unity.support.test.0:
ApportVersion: 2.6.1-0ubuntu9
Architecture: i386
CompizPlugins: No value set for
`/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: compiz
Date: Tue Jan 15 15:37:04 2013
DistUpgraded: 2012-10-21 07:16:39,989 DEBUG enabling apt cron job
DistroCodename: quantal
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes, including running git bisection searches
GraphicsCard:
NVIDIA Corporation C68 [GeForce 7050 PV / nForce 630a] [10de:053b] (rev a2)
(prog-if 00 [VGA controller])
Subsystem: Elitegroup Computer Systems Device [1019:2609]
InstallationDate: Installed on 2012-06-03 (226 days ago)
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release i386 (20120423)
Lsusb:
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
MachineType: ECS GeForce7050M-M
MarkForUpload: True
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.8.0-996-generic
root=UUID=294c9363-eb96-44ab-9084-d4e09c11ecad ro quiet splash vt.handoff=7
SourcePackage: xorg
UpgradeStatus: Upgraded to quantal on 2012-10-21 (86 days ago)
dmi.bios.date: 09/12/2008
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 080014
dmi.board.name: GeForce7050M-M
dmi.board.vendor: ECS
dmi.board.version: 1.0
dmi.chassis.type: 3
dmi.chassis.vendor: ECS
dmi.modalias:
dmi:bvnAmericanMegatrendsInc.:bvr080014:bd09/12/2008:svnECS:pnGeForce7050M-M:pvr1.0:rvnECS:rnGeForce7050M-M:rvr1.0:cvnECS:ct3:cvr:
dmi.product.name: GeForce7050M-M
dmi.product.version: 1.0
dmi.sys.vendor: ECS
version.compiz: compiz 1:0.9.8.6-0ubuntu1
version.libdrm2: libdrm2 2.4.39-0ubuntu1
version.libgl1-mesa-dri: libgl1-mesa-dri 9.0-0ubuntu1
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 9.0-0ubuntu1
version.xserver-xorg-core: xserver-xorg-core 2:1.13.0-0ubuntu6.1
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.3-0ubuntu2
version.xserver-xorg-video-ati: xserver-xorg-video-ati
1:6.99.99~git20120913.8637f772-0ubuntu1
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.20.9-0ubuntu2
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.2-0ubuntu3
** Affects: xorg (Ubuntu)
Importance: Undecided
Status: New
** Tags: apport-bug compiz-0.9 i386 quantal ubuntu
** Attachment added: "dmesg.txt after screen freeze"
https://bugs.launchpad.net/bugs/1100017/+attachment/3484246/+files/dmesg.txt
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https://bugs.launchpad.net/bugs/1100017
Title:
screen freeze while switching windows
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