5.1 Surround on Ubuntu 14.04 with ALC888
First install a few programs and drivers sudo apt-get install pavucontrol libasound2-plugins-extra liba52-0.7.4 Add the file /usr/share/alsa/alsa.conf.d/a52.conf Add >> pcm.a52 { @args [CARD] @args.CARD { type string } type rate slave { pcm { type a52 bitrate 448 channels 6 card $CARD } rate 48000 #required somehow, otherwise nothing happens in PulseAudio } } << Testing: run in terminal speaker-test -c 6 I later added to /etc/modprobe.d/alsa-base.conf >> options snd-hda-intel model=6stack-dig << Notes: I tried changing /etc/pulse/daemon.conf and setting the following config without success >> default-sample-rate = 48000 default-sample-channels = 6 default-channel-map = front-left,front-right,front-center,rear-left,rear-right,lfe << Help found on: https://help.ubuntu.com/community/DigitalAC-3Pulseaudio http://ubuntuforums.org/showthread.php?t=2064526 http://ubuntuforums.org/...