This is due to some remains from trying desktop-effects with feisty. I backed up my home directory and created an empty one. After logging in everything works fine.
-- [Gusty] Workspaces switch incorrectly using Compiz, Twinview and dual monitoras https://bugs.launchpad.net/bugs/130659 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs