Remember bluetooth profile for headphones a.k.a. restore _High Fidelity Playback (A2DP Sink)_

pulseaudio restore high-fidelity a2dp-sink

Source(s)

• https://askubuntu.com/a/1413936/1152691
• https://askubuntu.com/a/1307375/1152691

• create a file called e.g. restore-bluetooth-profile.pa in /etc/pulse/default.pa.d/ with the following content

load-module module-card-restore restore_bluetooth_profile=true

• ensure that in /etc/pulse/default.pa there is no line that also loads module-card-restore
  • if there is, comment it out (or remove it), since pulseaudio will not load the same module twice, thus not respecting our custom option
• then restart pulseaudio

OR

• edit /etc/pulse/default.pa and find the entry load-module module-bluetooth-policy (it should be guarded by an .ifexists as seen below)
• add auto_switch=2

.ifexists module-bluetooth-policy.so
load-module module-bluetooth-policy auto_switch=2
.endif

• then restart pulseaudio