Sorry, radeonhd is unmaintained and doesn't work with kernel modesetting, it's not coming back. Judging by your upstream bug report things should work out-of-the-box on natty (which has 2.6.38).
** Changed in: xserver-xorg-video-radeonhd (Ubuntu) Status: Confirmed => Won't Fix -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/663136 Title: xserver-xorg-video-radeonhd is missing in maverick -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs