Radeon versus Catalyst

[Bruno Wolff III]

On Wed, Jun 22, 2011 at 09:47:22 -0400,
  Tom Horsley <horsley1953 at gmail.com> wrote:
> 
> Does anyone happen to know the magic voo-doo I must have
> missed to get decent video from the catalyst drivers, or
> am I doomed to using Windows 7 if I want both audio and
> video at the same time :-).

HDMI support already exists for r600/r700 based cards.

The following commit seems relevant:
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=805c22168da76a65c978017d0fe0d59cd048e995

It indicates that audio is disabled by default because of problems on some
systems. You can add radeon.audio=1 to the boot parameters to try to turn
it back on.