I'm wondering if anyone has actually got this working? I've read lots about HDMI Audio, and i have that working without any issue. The optical port on my Mac however seems to be a different story..

I followed the info here http://ubuntuforums.org/showthread.php?t=1670215#4 but that just dumps the audio to the HDMI port. Even if I modify the

aplay -D plughw:0,8 /usr/share/sounds/alsa/Front_Center.wav

command to different values (I tried 0,0 0,1 0,2 0,3 0,4 0,5 0,6 0,7 0,8)

All of them except 0,0 output through HDMI

has anyone got it working properly?