I've submitted the bug upstream with a possible patch to fix it. I believe that this bug is related to metacity's focus-stealing prevention and use of stale X11 timestamps to activate windows. Please see the upstream bug for more details: https://bugzilla.gnome.org/show_bug.cgi?id=676076
** Bug watch added: GNOME Bug Tracker #676076 https://bugzilla.gnome.org/show_bug.cgi?id=676076 ** Also affects: policykit-gnome via https://bugzilla.gnome.org/show_bug.cgi?id=676076 Importance: Unknown Status: Unknown -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/946171 Title: Authentication dialog window loses focus easily - Ubuntu 12.04 To manage notifications about this bug go to: https://bugs.launchpad.net/policykit-gnome/+bug/946171/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs