I don't know if it's the same issue at hand, but in bug #40503 there are also things broken during the initial auto-configuration that work fine when "dpkg-reconfigure xserver-xorg" is run manually afterwards.
-- X chooses vesa driver for an ATI Radeon X300 https://launchpad.net/bugs/44924 -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
