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Why can't I set a default output audio device in Ubuntu 19.10?
November 4, 2019
Edited: November 8, 2019
November 24, 2022
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This is a bug reported here three days ago:
PulseAudio reverts the sound to HDMI all the time when a HDMI related
power event occurs. That means, although I have set another USB sound
device plugged in and set as default under sound settings, when an
application like Kodi or the system shuts off the HDMI monitor and I
reactivate the monitor, the sound is set to HDMI output again and
That probably has to do with the fix to the reported Bug # 1711101 and
definitely not happened at Ubuntu 19.04. I switched to Ubuntu 19.10
two days ago.
Setting the USB device as default does not help, even when done by
PulseAudio mixer (gui) and removing HDMI output from the alternatives
Only one person is effected by the bug (on November 4, 2019). Visit the link, click that it effects you and subscribe to the bug email.
11 people are now effected as of November 8, 2019. Comment #11 presents a solution though:
I think i found a solution. I’m commenting this lines
#load-module module-switch-on-port-available #load-module module-switch-on-connect in `etc/pulse/default.pa` and all work for me.