This bug has been finally fixed (at least in 12.04) with yesterday (18 Jun 2013) updates.
** Changed in: linux (Ubuntu) Status: Confirmed => Fix Released -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1133244 Title: Display flickering in 12.10 amd64 UPDATES (with workaround) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1133244/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs