Thanks. That's at least great progress and we've narrowed the problem down to XMir.
** Changed in: mir Status: Incomplete => Invalid ** Changed in: xorg-server (Ubuntu) Status: Incomplete => New ** Also affects: xmir Importance: Undecided Status: New ** Also affects: xserver-xorg-video-ati (Ubuntu) Importance: Undecided Status: New ** Summary changed: - [radeon] Graphic glitches and screen corruption (vertical lines) + [radeon] Graphic glitches and screen corruption (vertical lines) on XMir surfaces only -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/1218815 Title: [radeon] Graphic glitches and screen corruption (vertical lines) on XMir surfaces only To manage notifications about this bug go to: https://bugs.launchpad.net/mir/+bug/1218815/+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