I eventually decided that the display device on the laptop where I was having this problem was probably faulty. I replaced that laptop with a very similar one (the principle difference being an ATI x1400 instead of an x1300), and I haven't had this problem since. For what that's worth.
-- KMS & radeon in Lucid renders X unusable, but only since about April 26 https://bugs.launchpad.net/bugs/573983 You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-ati in ubuntu. _______________________________________________ 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