I am running Ubuntu 11.04 and I have an ASRock H67M-ITX/HT motherboard which is the Intel Sandy Bridge architecture.
I can't get sound to play through my TV on the HDMI interface. I have plugged in headphones and they work. I have also tried changing the device in sound preferences to the HDMI options provided
- Digital Stereo (HDMI) Output
- Digital Stereo (HDMI) Output + Analog Stereo Input
- Digital Stereo Duplex (IEC958)
- Digital Stereo (IEC958) Output + Analog Stereo Input
When I run the following command it plays sound fine.
aplay -D plughw:0,7 /usr/share/sounds/alsa/Front_Center.wav