I found in the NVidia forums where it has been asked and the answer is that audio over HDMI is NOT currently supported in the NVidia Linux drivers and it may be supported sometime in the future.
http://www.nvnews.net/vbulletin/showthread.php?t=97993&highlight=hdmi+audio
I found in the NVidia forums where it has been asked and the answer is that audio over HDMI is NOT currently supported in the NVidia Linux drivers and it may be supported sometime in the future.
http:// www.nvnews. net/vbulletin/ showthread. php?t=97993& highlight= hdmi+audio