Your errors similar to things mentioned in this bugzilla entry, means with XKB?
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=125722
That was it.
using Option "XkbRules" "xorg" instead of Option "XkbRules" "xfree86"
did the trick.
I guess upgrading meant no xorg.conf file was written and the old XFree86CONFIG was used instead but didn't quite work.
Anyway, thanks.
-- Shawn
Karma is immutable, so act accordingly!