According to this thread
PulseAudio 14.0-1 is supposed to solve the problem that output doesn’t automatically switch when headphones are plugged in. I have a fully up-to-date Manjaro system (I assume stable - how do I tell?) on a Dell Precision 5220, including a number of pulseaudio 14.0-1 packages
extra/pulseaudio 14.0-1 [installed] extra/pulseaudio-alsa 1:1.2.2-2 [installed] extra/pulseaudio-bluetooth 14.0-1 [installed] extra/pulseaudio-equalizer 14.0-1 [installed] extra/pulseaudio-jack 14.0-1 [installed] extra/pulseaudio-lirc 14.0-1 [installed] extra/pulseaudio-zeroconf 14.0-1 [installed] community/pulseaudio-ctl 1.67-1 [installed]
When I plug in my earbugs (USB-C) I still have to manually switch outputs using the PulseAudio Volume Control widget. When it displays, it shows them as available, but the switch isn’t made. If I unplug them, they disappear (and output reverts to the speakers automatically).
Is there something I can do to remedy this problem or more input I can provide to help others figure out what’s going wrong?