[i855] GPU lockup bb654f5e

Binary package hint: xserver-xorg-video-intel

X crashed and offered a list of options:

1) to restart in low graphics mode <<< (this mode returns to funny looking right-handed (?MAC?like) theme
looks like X or a glitch in underlying intel driver crashes compiz and emerald as well. this time i've enabled crash handler in CCSM with 'metacity --replace' line. hopefully next time it will fail back to metacity without crashing session)

2)reconfigure X <<< (have not tried custom xorg.conf yet)

3)restart X <<< (this simply blackscreens everything and X never completes restart. escape to other tty1-6 consoles is impossible, have to reboot)

i have skipped two other options. somehow the crash occurs during the launch of Update Manager

ProblemType: Crash
Architecture: i386
Chipset: i855
Date: Mon Mar 22 22:29:55 2010
DistroRelease: Ubuntu 10.04
DkmsStatus: Error: [Errno 2] No such file or directory
DumpSignature: bb654f5e
ExecutablePath: /usr/share/apport/apport-gpu-error-intel.py
InstallationMedia: Ubuntu 10.04 "Lucid Lynx" - Alpha i386 (20100301)
InterpreterPath: /usr/bin/python2.6
Lsusb:
 Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
 Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
 Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: Dell Inc. Latitude D505
Package: xserver-xorg-video-intel 2:2.9.1-1ubuntu16
PccardctlIdent:
 Socket 0:
   no product info available
PccardctlStatus:
 Socket 0:
   no card
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.32-16-generic root=UUID=2cee640b-b3d2-4316-bae0-36da0f0552b1 ro
ProcCmdline: /usr/bin/python /usr/share/apport/apport-gpu-error-intel.py
ProcEnviron:

ProcVersionSignature: Ubuntu 2.6.32-16.25-generic
SourcePackage: xserver-xorg-video-intel
Title: [i855] GPU lockup bb654f5e
Uname: Linux 2.6.32-16-generic i686
UserGroups:

dmi.bios.date: 11/03/2006
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A11
dmi.board.vendor: Dell Inc.
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvrA11:bd11/03/2006:svnDellInc.:pnLatitudeD505:pvr:rvnDellInc.:rn:rvr:cvnDellInc.:ct8:cvr:
dmi.product.name: Latitude D505
dmi.sys.vendor: Dell Inc.
system:
 distro: Ubuntu
 codename: lucid
 architecture: i686
 kernel: 2.6.32-16-generic