Do you have desktop effects switched on? Have a look at system / prefs / appearance at the visual effects tab and change to "none" and see if the problem continues.
There are a few bugs on similar hardware with similar issues. https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/541492 https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/259385 -- computer freezes on screensaver after upgrade to 10.04 https://bugs.launchpad.net/bugs/577308 You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-intel in ubuntu. _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : [email protected] Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp

