[ubuntu] Trying to figure out the best 5.1 Surround Setup for HTPC

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http://ubuntuforums.org – My HTPC has been running on Ubuntu 11.10 (plan to upgrade to 12.04 some day, but too many things broke right off the bat for me to want to deal with it now). I use XBMC and MythTV, and have an nVidia GT520 video card that is handling the audio via HDMI as well. For too long I was only able to play 2.0 PCM through my old receiver, as 2.0 PCM was all it could handle, and I could never get any of the passthroughs to work right. I recently bought a new receiver that handles 5.1 PCM, as well as all the other audio modes (DTS, AC3, etc). I first set the system up to be able to use the surround soun (Hardware)