Thanks for the feedback. I'm in awe. I think it unlikely to be a cable matter but will get hw to test.
I have the digital pass-through configured with Mythtv (ALSA:hw:CARD=NVidia,DEV=3) as has worked well for months (The PulseAudio observation was a red herring, sorry. I don't use it.). Tried other configurations but no dice. DD 5.1 displays DD 3/2 on the receiver but stays silent. DTS still shows on the receiver as DD 3/2 but is silent. PCM works fine through the same optical cable. Perhaps a MoBo fault? But don't know how to test. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/981416 Title: Passthrough via SPDIF stopped working To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mythtv/+bug/981416/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs