Set active sound port to headphones on Linux Fedora Gnome

 HOWTO

•   https://bbs.archlinux.org/viewtopic.php?id=269199
  

•   https://unix.stackexchange.com/questions/459240/changing-audio-output-from-terminal

• https://wolfgang-ziegler.com/blog/prevent-changing-of-default-ubuntu-sound-device
  

Get current sound settings

[dave@dave ~]$ pactl list short sinks
44    alsa_output.pci-0000_00_1f.3.analog-stereo    PipeWire    s32le 2ch 48000Hz    RUNNING

[dave@dave ~]$ more ~/.local/state/wireplumber/default-routes 
[default-routes]
alsa_card.pci-0000_00_1f.3:input:analog-input-headset-mic:channelMap=FL;FR;
alsa_card.pci-0000_00_1f.3:input:analog-input-headset-mic:channelVolumes=0.39999160170555;0.39999160170555;
alsa_card.pci-0000_00_1f.3:input:analog-input-headset-mic:latencyOffsetNsec=0
alsa_card.pci-0000_00_1f.3:output:analog-output-headphones:channelMap=FL;FR;
alsa_card.pci-0000_00_1f.3:output:analog-output-headphones:channelVolumes=1.0;1.0;
alsa_card.pci-0000_00_1f.3:output:analog-output-headphones:latencyOffsetNsec=0
alsa_card.pci-0000_00_1f.3:output:analog-output-speaker:channelMap=FL;FR;
alsa_card.pci-0000_00_1f.3:output:analog-output-speaker:channelVolumes=0.39999160170555;0.39999160170555;
alsa_card.pci-0000_00_1f.3:output:analog-output-speaker:latencyOffsetNsec=0
alsa_card.pci-0000_00_1f.3:profile:output:analog-stereo+input:analog-stereo=analog-output-headphones;

Set active port - change to headphones

[dave@dave ~]$ man pactl
[dave@dave ~]$ pactl list sinks |& grep -E "Sink|Ports|analog-ou"
Sink #44
        media.class = "Audio/Sink"
    Ports:
        analog-output-speaker: Speakers (type: Speaker, priority: 10000, availability group: Legacy 3, availability unknown)
        analog-output-headphones: Headphones (type: Headphones, priority: 9900, availability group: Legacy 2, availability unknown)
    Active Port: analog-output-speaker
[dave@dave ~]$ pactl set-sink-port 44  analog-output-headphones
[dave@dave ~]$ pactl list sinks |& grep -E "Sink|Ports|analog-ou"
Sink #44
        media.class = "Audio/Sink"
    Ports:
        analog-output-speaker: Speakers (type: Speaker, priority: 10000, availability group: Legacy 3, availability unknown)
        analog-output-headphones: Headphones (type: Headphones, priority: 9900, availability group: Legacy 2, availability unknown)
    Active Port: analog-output-headphones
[dave@dave ~]$ pactl set-sink-port 44  analog-output-headphones