Hi Aaron, This bug sounds a lot like a upowerd bug that was recently fixed. I found that the upowerd daemon was polling the monitors every 30 sec under some circumstances (such as when in a docking station). We changed that functionality to default to off.
Can you confirm whether this issue is still affecting you? If not, it may just have been a dupe of that now-fixed issue. ** Changed in: xserver-xorg-video-ati (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-ati in Ubuntu. https://bugs.launchpad.net/bugs/752493 Title: 11.04 Beta: Screen flicker and horizontal bands every 30 seconds _______________________________________________ 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