https://bugs.freedesktop.org/show_bug.cgi?id=56405
--- Comment #26 from Michel Dänzer michel@daenzer.net --- (In reply to comment #25)
But now gnome starts in fallback mode with the new r600_dri.so.
Does
LIBGL_DEBUG=verbose glxinfo | grep render
give any hints as to what might be wrong with this r600_dri.so?