Comment 0 for bug 891300

after few day of work some artefacts present on my display: missed symbols(characters), icons

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: linux-image-generic 3.0.0.13.15
ProcVersionSignature: Ubuntu 3.0.0-13.22-generic 3.0.6
Uname: Linux 3.0.0-13-generic i686
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
AplayDevices:
 **** List of PLAYBACK Hardware Devices ****
 card 0: Intel [HDA Intel], device 0: ALC660-VD Analog [ALC660-VD Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
ApportVersion: 1.23-0ubuntu4
Architecture: i386
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: Intel [HDA Intel], device 0: ALC660-VD Analog [ALC660-VD Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: knorr 25931 F.... pulseaudio
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xfeaf8000 irq 45'
   Mixer name : 'Realtek ALC660-VD'
   Components : 'HDA:10ec0660,1179ff40,00100001 HDA:11c11040,11790001,00100200'
   Controls : 15
   Simple ctrls : 10
Date: Thu Nov 17 04:14:24 2011
HibernationDevice: RESUME=UUID=f679f6ab-5d7b-4870-a139-d82fff1e392a
InstallationMedia: Lubuntu 10.10 "Maverick Meerkat" - i386 (20101010)
MachineType: TOSHIBA Satellite L40
ProcEnviron:
 LANG=ru_RU.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.0.0-13-generic root=UUID=7ad42228-d254-4203-ada2-1f54a1f27093 ro quiet splash vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-3.0.0-13-generic N/A
 linux-backports-modules-3.0.0-13-generic N/A
 linux-firmware 1.60
RfKill: Error: [Errno 2] Нет такого файла или каталога
SourcePackage: linux
UpgradeStatus: Upgraded to oneiric on 2011-09-11 (66 days ago)
dmi.bios.date: 09/19/2007
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: V1.60
dmi.board.asset.tag: To Be Filled By O.E.M.
dmi.board.name: Satellite L40
dmi.board.vendor: TOSHIBA
dmi.board.version: 1.0
dmi.chassis.type: 10
dmi.chassis.vendor: TOSHIBA
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrV1.60:bd09/19/2007:svnTOSHIBA:pnSatelliteL40:pvr:rvnTOSHIBA:rnSatelliteL40:rvr1.0:cvnTOSHIBA:ct10:cvr:
dmi.product.name: Satellite L40
dmi.sys.vendor: TOSHIBA