OK. Since this version of PulseAudio hasn't really changed since October I suspect what changed for you was the recent redesign of gnome-control- center's Sound panel (or a kernel change).
What version did you upgrade from where it was working? Can you please try live booting 18.10 and tell us if that has the same problem? http://releases.ubuntu.com/18.10/ -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1817338 Title: HDMI sound output not available To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/1817338/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs