I am using Catalyst version 11.12 from AMD's website. I have enabled Tear free desktop. When I try to use gnome shell, everything works fine, until I use an app that uses the notification area in the activities overview (ex: Desura) Gnome shell starts to lag heavily and sometimes crash/restart (shell and windows disappear for 2 seconds then comeback). Anyone have a fix?
closed as too localized by Jjed, James♦, jokerdino♦, Stefano Palazzo♦ Feb 1 '12 at 11:27
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Apparently AMD confirmed that the bug is gone with the release of 12.1.
Please refer to this question to remove this and install the newest version.
If the problem maintains this should be reported to AMD as a new bug for the new driver version, I do not believe there us much you can further do.