I have exactly the same problem here. I'm unable to produce any AC3/DTS output out of S/PDIF interface. Only PCM digital stereo.The same thing happened in 9.04 an 9.10 release.
$ aplay -l **** Lista PLAYBACK urządzeń **** karta 0: Intel [HDA Intel], urządzenie 0: AD198x Analog [AD198x Analog] Urządzenia podrzędne: 1/1 Urządzenie podrzędne #0: subdevice #0 karta 0: Intel [HDA Intel], urządzenie 1: AD198x Digital [AD198x Digital] Urządzenia podrzędne: 1/1 Urządzenie podrzędne #0: subdevice #0 $ lsb_release -rd Description: Ubuntu lucid (development branch) Release: 10.04 -- 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