Same here. HDMI video output becomes available automatically when hooked up, but HDMI sound output does not. (It is not listed in Sound Settings dialog.)
My machine has not proprietary drivers installed, so that can't be the source of the problem. If I restart pulseaudio while HDMI is hooked up, the HDMI sound output becomes available. Essentially, the list of available outputs is not being refreshed automatically. My pulseaudio is version 1:1.1-0ubuntu15. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/961286 Title: HDMI audio device detected by the system but not listed in Sound Settings To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/961286/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs