I have intel onboard audio and am trying to get surround sound working over the digital coax spdif port. I followed these instructions: https://help.ubuntu.com/community/DigitalAC-3Pulseaudio ...which got me to the point where I can use speakertest -c 6 and successfully hear sound out of all my speakers independently, but I can't actually select this new device from VLC, the built-in "videos" app, or mplayer without getting errors and/or no sound whatsoever.
Anyone using 14.04 and getting surround sound (via DTS/AC3 passthrough)? If so, how!?