GNOME Bugzilla – Bug 654561
Gnome-shell draws beneath the primary monitor
Last modified: 2011-07-13 15:37:25 UTC
If you have a dual monitor setup with one monitor below the other and the top monitor as the primary monitor, the system-tray and pop-up notification are visible on the lower monitor, and block mouse events.
Thanks for the bug report. This particular bug has already been reported into our bug tracking system, but please feel free to report any further bugs you find. *** This bug has been marked as a duplicate of bug 636963 ***