Please check if the Xorg.0.log gives, in addition to ati blurb, finally something like "No Mach64 device detected" (a bit longer line, though). If there is such, just mark this as duplicate of bug #28925.
-- New ATI chipset not recognized (PCI 1002:71c4) [also radeonfb] https://launchpad.net/bugs/36316 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
