So, let's debug with the pulseaudio log. Enable the debugging log in the pulsaudio: edit /usr/lib/systemd/user/pulseaudio.service, comment out the line starting with ExecStart=..., add a new line "ExecStart=/user/bin/pulseaudio -vvvv --log-target=file:/home/your_user_name/pa.log
reboot Then tail -f ~/pa.log Plug the hdmi monitor, and select the hdmi audio as output device from UI. now check the pa.log, could you find the "configured_default_sink" from the log, it indicates the change of configured_default_sink. If the hdmi audio is set to configured_default_sink and keeps unchanged during the suspend and resume, the hdmi audio should be the output device after resume. So please check the changing about configured_default_sink in the pa.log. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1888598 Title: pulseaudio has is buggy with hdmi audio and sleep/wake To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/1888598/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
