I did some testing on 10.10. No surround sound on S/PDIF no matter what I've tried. VLC gives static noise instead of surround sound. mplayer with -ao alsa -ac hwac3 gives nothing, just silence, using Alsa directly in any media player with possibility of S/PDIF passthrough gives silence. Only using pulseaudio defaults gives just stereo output and system sounds working, but on very low volume level.
Everything unmuted, set to 100%, tried and checked two times..... -- PulseAudio doesn't allow AC3 output through S/PDIF https://bugs.launchpad.net/bugs/520157 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs