[ubuntu] Unable to get HDMI Surround 5.1 working

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http://ubuntuforums.org – I am working on setting up an HTPC running Ubuntu 12.10. I have been searching for hours for a solution to get 5.1 surround sound working through HDMI, to no avail. I do not know a lot about audio standards or how they are managed in Linux. Right now, I am able to get what I think is 2 channel audio through HDMI. In PulseAudio Volume Control, I only get the following two profile options for HDMI: Digital Stereo (HDMI) Output + Analog Stereo InputDigital Stereo (HDMI) Output The computer is connected via HDMI to the TV which in turn is connected to the speaker system. Possibly relevant co (Hardware)