Hi, Sorry for posting this where it's maybe not the right place but I had the greeter issue and it's now fixed after updating to the most recent PPA (https://launchpad.net/~lightdm-gtk-greeter-team/+archive/daily) and it's all working fine for the greeter screen (thank you for the fix btw).
But once passed the greeter, it's exactly the same screen corruption as before (see this picture: http://i.imgur.com/rr5pa84.jpg). It seems that whatever you did on the greeter should also be applied to the main desktop manager. I hope this helps, All the best, Laurent -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xserver-xorg-video-nouveau in Ubuntu. https://bugs.launchpad.net/bugs/1267742 Title: Screen artifacts appear after restart and cold boot Status in LightDM GTK+ Greeter: Fix Released Status in “xserver-xorg-video-nouveau” package in Ubuntu: Confirmed Bug description: When I cold boot the login screen background is garbled - see screenshot attached ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: xserver-xorg-video-nouveau 1:1.0.10-1ubuntu1 ProcVersionSignature: Ubuntu 3.13.0-1.16-generic 3.13.0-rc7 Uname: Linux 3.13.0-1-generic x86_64 ApportVersion: 2.12.7-0ubuntu6 Architecture: amd64 CurrentDesktop: XFCE Date: Fri Jan 10 08:21:28 2014 InstallationDate: Installed on 2013-12-25 (15 days ago) InstallationMedia: Xubuntu 14.04 LTS "Trusty Tahr" - Alpha amd64 (20131225) SourcePackage: xserver-xorg-video-nouveau UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/lightdm-gtk-greeter/+bug/1267742/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp

