https://bugs.freedesktop.org/show_bug.cgi?id=41592
mirandir@orange.fr changed:
What |Removed |Added ---------------------------------------------------------------------------- Status|REOPENED |RESOLVED Resolution| |FIXED
--- Comment #17 from mirandir@orange.fr 2011-11-01 10:44:43 PDT --- I uninstalled gnome-shell-extensions-mediaplayer, and it seems that it solves my problem.
Thanks to everybody, and sorry for the noise, it wasn't the fault of radeon driver or gnome-shell.