Home / ubuntu / Questions / 1171614
In Process
Enrique Moreno Tent
Asked: 2019-09-08 14:29:35 +0800 CST

Output channel for audio resets after every reboot

  • 772

I use my "Line Out - Built-in Audio" for my speakers, but for some reason, every time I reboot my computer, it changes by default to "Digital Output (S/PDIF) - Built-in Audio".

The funny thing is that, if I unplug and re-plug my speaker connector, the channel changes by itself to "Line Out" without me having to do anything.

What could I do so that I can stop doing this annoying step every day?

enter image description here

sound

2 Answers

  1. You can have pulse audio stay on the last selected output source no matter what:

    sudo -H gedit /etc/pulse/default.pa

    Find this line:

    load-module module-switch-on-port-available

    and change it to:

    # load-module module-switch-on-port-available

    An additional step is needed as listed in:

    We need to add the line:

    set-sink-port <name|index>  analog-output-headphones

    The name or index of the active sink, and available ports can be displayed with pactl list sinks. The way I spelled analog-output-lineout may be incorrect.

    Save the file and exit.

    Restart pulse audio with:

    pulseaudio -k

    In your sound settings select "Line Out" and it will always stay connected even if you physically unplug it.

    • 3

  2. I have multiple audio devices connected:

    • Internal sound card
    • Speakers via HDMI monitor
    • USB Mic and headphone adapter

    As suggested by Enrique in a comment to WinnEunuuchs2Unix answer, I commented out the line load-module module-switch-on-connect in my /etc/pulse/default.pa and it solved my problems of having the primary audio device change every boot.

    • 0