I have something similar on my Z61m with the standard ATI card. In my case, if I leave the machine running for a while, after some period of time the screen will go crazy. I can still see what's running, and I can carefully move the mouse and do things but it's really unusable. Logging out does not fix it, and it also does it when I switch to one of the virtual screens.
So far it has always happened while the machine was idle - I've been working on another machine while I sort out the various issues with 10.04, and periodically moving the mouse on the laptop, so it's always happened while the screensaver was running. But I don't know that's a requirement because the screensaver is running most of the time. I have found that putting the machine to sleep and then turning it back on fixes it - for a while. -- [RV515] [LENOVO T60] external screen display shows "shivering", horizontal refresh offset https://bugs.launchpad.net/bugs/541501 You received this bug notification because you are a member of Ubuntu-X, which is the registrant for xserver-xorg-driver-ati. _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp