svxlink takes control of soundcard, blocking it for other applications

[wwortel]

After a Linux Debian11 upgrade I was left without sound in general. Only a dummy output was shown under Sound Preferences.
Some googling revealed this sometimes is a symptom of some user having taken control of the audio card and driver. Pulseaudio then cannot access it. The application blocking sound for other applications turned out to be svxlink, even though svxlink was not active at the time.

sudo fuser -v /dev/snd/*
USER PID ACCESS COMMAND
/dev/snd/pcmC0D0c: svxlink 916 F...m remotetrx

Removal of the svxlink Debian packages returned audio functionality.
sudo fuser -v /dev/snd/*
USER PID ACCESS COMMAND
/dev/snd/controlC0: wwortel 1985 F.... pulseaudio

Please adapt the audio functionality such that it uses Pulseaudio but not blocks it.

[Dloranger]

Depending on your usage, we at open repeater team actually disable the remotetrx service as it would even cause svxlink to fail to run many years ago due to lack of a sound card.