Info that may help reproduce this:
xorg and compiz were killed
upon starting them again manually in a gnome terminal there was corrupt graphics
after reboot it was the same
ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: xorg 1:7.5+5ubuntu1
ProcVersionSignature: Ubuntu 2.6.32-22.33-generic 2.6.32.11+drm33.2
Uname: Linux 2.6.32-22-generic i686
Architecture: i386
CurrentDmesg:
[ 11.679002] ppdev: user-space parallel port driver
[ 659.017656] eth0: link up, 100Mbps, full-duplex, lpa 0x41E1
[ 659.018125] ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[ 669.097044] eth0: no IPv6 routers present
Date: Sun May 16 20:55:37 2010
DkmsStatus: Error: [Errno 2] No such file or directory
InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release i386 (20100429)
MachineType: Hewlett-Packard Compaq Presario A900 Notebook PC
ProcCmdLine: BOOT_IMAGE=/vmlinuz-2.6.32-22-generic root=UUID=caebd479-b786-4b3f-b93f-4fd758a867cf ro quiet splash
ProcEnviron:
LANG=en_GB.utf8
SHELL=/bin/bash
SourcePackage: xorg
Symptom: display
dmi.bios.date: 09/25/2008
dmi.bios.vendor: Hewlett-Packard
dmi.bios.version: F.34
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: 30ED
dmi.board.vendor: Hewlett-Packard
dmi.board.version: 83.21
dmi.chassis.type: 10
dmi.chassis.vendor: Hewlett-Packard
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnHewlett-Packard:bvrF.34:bd09/25/2008:svnHewlett-Packard:pnCompaqPresarioA900NotebookPC:pvrF.34:rvnHewlett-Packard:rn30ED:rvr83.21:cvnHewlett-Packard:ct10:cvrN/A:
dmi.product.name: Compaq Presario A900 Notebook PC
dmi.product.version: F.34
dmi.sys.vendor: Hewlett-Packard
glxinfo: Error: [Errno 2] No such file or directory
system:
distro: Ubuntu
codename: lucid
architecture: i686
kernel: 2.6.32-22-generic
[lspci]
00:02.0 VGA compatible controller [0300]: Intel Corporation Mobile GM965/GL960 Integrated Graphics Controller [8086:2a02] (rev 03)
Subsystem: Hewlett-Packard Company Device [103c:30d9]
I have reassigned this issue to intel driver package