This is probably a bit of a long shot but here goes...
I have my TBS6280 sitting alongside a Zotac GT210 graphics card in a HP N40L microserver. I intend using this as a Ubuntu HTPC if I can get it going. The problem I'm having is that I can get pictures from the Tv card from the HDMI output of the GT210 but I can't get any sound. I know there is some sound working because typing aplay /path/to/sound.wav plays the sound from my speakers (HDMI out).
Is there something to do with the TBS6280 that may be causing this or is it more likely to be an issue with config of the PC? I've looked in the mixer settings and all four outputs are unmuted. I can even see the audio levels changing in Pulseaudio Control centre (pavucontrol).
Any suggestions?