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Now, to make this work at every restart, follow this :įirst, open the file /etc/pulse/default.pa using : sudo -H gedit /etc/pulse/default.pa Second: To set a default output device run the command pactl set-default-sink Įxample: pactl set-default-sink 'alsa_output.pci-0000_00_1f.3.analog-stereo' Here is a well explained tutorial to set a default audio input/output.įirst: List the audio output devices using pactl list short sourcesĮxample of the output: pactl list short sourcesĠ alsa_output.pci-0000_02_00.1.hdmi-stereo.monitor module-alsa-card.c s16le 2ch 44100Hz SUSPENDEDġ alsa_b-AVerMedia_Technologies_Inc._Live_Gamer_Portable_2_5202050100060-03.analog-stereo module-alsa-card.cĢ alsa_b-Blue_Microphones_Yeti_Stereo_Microphone_ module-alsa-card.c s16le 2ch 44100Hz SUSPENDEDģ alsa_b-Blue_Microphones_Yeti_Stereo_Microphone_REV8-00.analog-stereo module-alsa-card.c s16le 2ch 44100Hz RUNNING It seems that figured out a simpler solution. If you want to change the default device simply edit the device name in startup applications command. Your default audio device will be set on each boot and as such be persistent. Pactl set-default-sink 'Your-Device-Name'

Copy your command from above into the command field:.Open the application "Startup Applications" (Should be preinstalled on Ubuntu).This should work without giving you an error message. Note the device name you want to use as default.The simple workaround I found is adding the pactl set default sink command in startup applications.

It didn't work with device names in /etc/pulse/default.pa. It worked with device numbers in /etc/pulse/default.pa but as I connected for example my headset device numbers were changing and things stopped working. I couldn't get the solution proposed to persist on Ubuntu 19.10.