Thank you for your bug report, could you try if that's still an issue with the current version?
That could be that issue: unity-greeter (0.2.5-0ubuntu2) precise; urgency=low * debian/patches/fix_login_corruption.patch: - Fix setting of root window background pixmap. Fixes "corruption" seen between unity-greeter and Unity start, which was actually just random bits of VRAM in an uninitialised pixmap. (LP: #931967) you seem to use outdated versions though ** Changed in: unity (Ubuntu) Importance: Undecided => Low ** Changed in: unity (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/954486 Title: Weird videocard's behaviour To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/unity/+bug/954486/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs