Looking again, it was actually just a corruption of the gnome panel, not a notification window.
I probably wasn't very clear before: this is happening *instead of* the normal 'brightness changed' notification, which doesn't show up at all. Attached a photo of Lucid.. ** Attachment added: "lucid-brightness3.png" http://launchpadlibrarian.net/41671664/lucid-brightness3.png -- On brightness change, corrupted notification appears https://bugs.launchpad.net/bugs/543489 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