On or around April 17, a new version of mesa (9.1.1-0ubuntu1) was released which pulled in a pretty big upstream mesa release. I'm thinking this could be a source of the issue here, so I'm going to open up a mesa package task on this bug in the hopes that someone familiar with the mesa workings can take a look at this bug.
** Also affects: mesa (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to mesa in Ubuntu. https://bugs.launchpad.net/bugs/1170418 Title: Unity Launcher and window borders missing upon login when using 3 monitors To manage notifications about this bug go to: https://bugs.launchpad.net/unity/+bug/1170418/+subscriptions _______________________________________________ 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