Ubuntu
pulseaudio package

  1. Bug #1707611
  2. Comment #14

Comment 14 for bug 1707611

Revision history for this message
Marius Gedminas (mgedmin) wrote :

My laptop with Ubuntu 20.10 automatically switches to the HDMI output when I plug in my monitor (via a USB C cable connected to a dock station connected to the monitor via a HDMI cable).

And then, a second later, it switches to the USB dock's audio output (which has nothing plugged in), but that's a different bug.

Incidentally, module-switch-on-connect in PulseAudio 14 (and also Ubuntu 20.10's 13.99.2) has a blacklist of sink names that should not be switched to. The default value of this blacklist is a regexp matching "hdmi". The blacklist doesn't appear to work (which is also a different bug).
If it does start to work at some point, you may have to edit /etc/pulse/default.pa and change

    load-module module-switch-on-connect

to say

    load-module module-switch-on-connect blacklist=""

if you want HDMI outputs to be switched to.