Since some updates (I have not figured out what is the exact problem here) AC3 passthrough using pulseaudio does not work anymore. The yum.log is attached. AC3 Passthrough did work on the 14th of may. Smolt-Profile: http://www.smolts.org/client/show/pub_b75f1860-8199-486a-b3b8-5047dd56f614
Created attachment 306584 [details] yum log of the latest updates on my machine
Disabling pulseaudio via /etc/alsa/alsa.conf "fixes" this problem for me: @hooks [ { func load files [ # "/etc/alsa/pulse-default.conf" "/etc/asound.conf" "~/.asoundrc" ] errors false } ]
PulseAudio doesn't do AC3 pass-through. If you want to use it, then you have to use the spdif ALSA plugin and bypass PA. If PA is blocking access to the audio device you might want to wrap your call in "pasuspender".