NVidia HDMI audio output

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http://askubuntu.com – I'm trying to get HDMI audio output from a ION system but I'm running out of ideas. After the install process (12.10 server, xorg, alsa, nvidia-current) I immediately un-muted channels in alsamixer and run xbmc@htpc:~$ aplay -l **** List of PLAYBACK Hardware Devices **** card 0: NVidia [HDA NVidia], device 0: ALC662 rev1 Analog [ALC662 rev1 Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 card 0: NVidia [HDA NVidia], device 3: HDMI 0 [HDMI 0] Subdevices: 1/1 Subdevice #0: subdevice #0 and then just to be sure xbmc@htpc:~$ aplay -D plughw:0,3 /usr/share/sounds/alsa/Front_Center.wav (HowTos)