After some digging I noticed that the S/PDIF output was simply muted by ALSA. I unmuted it in alsamixer and now it works. I _did_ try to do this before submitting a bug report, but for some reason, I couldn't get it to work.
Sorry for the false alarm. ** Changed in: linux (Ubuntu) Status: Incomplete => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1174332 Title: Digital audio output not working To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1174332/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs