Can you patch your xserver-xorg-video-nouveau with this debdiff and see if it fixes this issue?
** Patch added: "debdiff for 1:1.0.2-0ubuntu3+bug1010794~try1" https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-nouveau/+bug/1010794/+attachment/3408705/+files/xserver-xorg-video-nouveau_1.0.2-0ubuntu3%2Bbug1010794%7Etry1.debdiff ** Changed in: xserver-xorg-video-nouveau (Ubuntu) Status: Confirmed => In Progress -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-nouveau in Ubuntu. https://bugs.launchpad.net/bugs/1010794 Title: Graphics/text corruptions in some applications with nouveau drivers To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-nouveau/+bug/1010794/+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