I am seeing the same error message when I click superkey to get the HUD search-"window" in 12.04.1.
Window manager warning: Buggy client sent a _NET_ACTIVE_WINDOW message with a timestamp of 0 for 0x1400002 (unity-2d-s) Window manager warning: meta_window_activate called by a pager with a 0 timestamp; the pager needs to be fixed. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/561540 Title: Buggy client sent a _NET_ACTIVE_WINDOW message with a timestamp of 0 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gdm/+bug/561540/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs