PipeWire showing only dummy output

After the latest PipeWire upgrade on Debian, sound stopped working for. The bluetooth headset would not connect, and in the output options I had only one device labeled dummy output.

This was caused by a recent upgrade of the pipewire-media-session package to version 0.4.1-3. Debian decided that media-session is deprecated in favor of WirePlumber. As part of the package installation, the /usr/share/pipewire/media-session.d/with-pulseaudio file, signalling media-session it should handle audio, gets removed. As I didn’t have WirePlumber installed, nothing managed the audio configuration. The solution is to recreate the file and restart the relevant PipeWire servcies.

$ sudo touch /usr/share/pipewire/media-session.d/with-pulseaudio 
$ systemctl restart --user pipewire pipewire-media-session pipewire-pulse

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