I updated the modular X drivers, but didn't beat the morning rawhide
sync scripts, so they didn't get into the tree today, or at least
not all of them. The older drivers should work too, but the new ones
are the X11R7 RC2 drivers.
If you experience X video problems today, please update to these new
drivers:
ftp://people.redhat.com/mharris/testing/unstable
If you still have problems, be sure to file a bug report in X.Org
bugzilla at
http://bugs.freedesktop.org in the "xorg" component, and
attach your X server log and config file.
Happy testing.