[buster2209]

In XBMC, I have configured the sound as follows;

Audio ouput > HDMI

Audio output device > Defaults
Custom audio device > hw:1,7

These settings enable sound through my HDMI port.

One minor problem I am having is that when I the turn the volume up or down within XBMC I get the error message 'Passthrough Audio In Use'.

Is there a work a round for this?

BTW, I'm running Ubuntu 10.10 on a Revo 3700.

[buster2209]

Found this thread after a deeper search within.

It seems internal volume doesn't work when audio is set to a pass through device....

[ronie]

that's not an error message. ;-)

it's xbmc notifying you that it can not control the volume.
when passthrough is in use, the sound (bitstream) is send unaltered to your receiver / tv. you should control the volume on those devices.