https://bugs.freedesktop.org/show_bug.cgi?id=28517
--- Comment #20 from Sven Arvidsson sa@whiz.se 2010-08-25 13:55:55 PDT --- With latest git master (commit b5c07b9226d8e7de78f6367b5799b39caf820ef3) I only get a black background and a mouse cursor.
As for performance, it is much much slower than on my Intel IGP, slow enough that you need to wait for the mouse cursor to move, so something seems to be wrong.