Bah, I got the versions completely wrong, mixed up radeonhd in my head. Of course I originally tried 6.12.1-0ubuntu2 (as shipped in jaunty) and then tried the listed 6.12.2-0ubuntu1~xup~1.
Bah, I got the versions completely wrong, mixed up radeonhd in my head. Of course I originally tried 6.12.1-0ubuntu2 (as shipped in jaunty) and then tried the listed 6.12.2- 0ubuntu1~ xup~1.