Actually, the bug occurs with Unity 7 sessions too. That excludes mutter and gnome-shell. But I might have been too quick to eliminate xorg- server.
** Changed in: xorg-server (Ubuntu) Status: Invalid => Confirmed ** Changed in: gnome-shell (Ubuntu) Status: Confirmed => Invalid ** Changed in: mutter (Ubuntu) Status: Confirmed => Invalid -- 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/1753776 Title: Graphics corruption (or distortion?) in login animation to Xorg sessions To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1753776/+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