When plugging in a USB headset which provides an input device and an audio device, I can select and control its volume via alsamixer but pulseaudio does not recognize it as an available audio sink.
After restarting the service with systemctl --user restart pulseaudio.service, the log reads:
I have not seen this exact error, but there is some trouble with secondary sound cards which is I think caused by the custom pulseaudio profile I made for Reform. It was necessary to support the setup of mono input and stereo output of the internal WM8960. Maybe disabling these changes can help: reform2-imx8mq/template-etc/pulse · main · Reform / reform-system-image · GitLab