Is this related to https://bugs.freedesktop.org/show_bug.cgi?id=63435 ? Can you test if reverting that patch works?
** Bug watch added: freedesktop.org Bugzilla #63435 https://bugs.freedesktop.org/show_bug.cgi?id=63435 ** Changed in: xserver-xorg-video-nouveau (Ubuntu) Status: New => Incomplete -- 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/1202058 Title: Monitor flickers when using the nouveau driver on 13.10. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-nouveau/+bug/1202058/+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