Comment 2 for bug 38502

I did not have libnotify installed, so the update manager and the like probably use something else.

I can, however, confirm that libnotify popups are still popping up on top of gksu promts on Hardy by following your instructions.

I wonder what else have "access" to override/manipulate gksu promts. This could lead to security problems.

Reported to official GKSu bug tracker: http://savannah.nongnu.org/bugs/index.php?23332