https://bugs.freedesktop.org/show_bug.cgi?id=41668
--- Comment #16 from Przemyslaw Kochanski przemyslaw@kochanski.biz 2011-12-14 17:38:59 PST --- Created attachment 54445 --> https://bugs.freedesktop.org/attachment.cgi?id=54445 output of glxinfo
I'm experiencing the same issue on Ubuntu 11.10. I'm ready to provide all necessary backtrace. I'm attaching gnome-shell backtrace and glxinfo output. Same issue is reported on gnome-shell bugtracker: https://bugzilla.gnome.org/show_bug.cgi?id=650857 but they claim its either X or the drivers fault.