Im a having problem with catalyst 8.5 and 8.6 where right when ubuntu goes to load X and show the login screen, nothing happens and im left with a black screen. Im using the chipID hack so I can at least use part of my 3870x2 (i know its unsupported). The last release that worked was 8.3. Im still using gutsy 64bit because I get hit with the mtrr bug in hardy.

Has anyone else gotten this working?