I'm trying to list available devices with 'webcamd -l' but it doesn't exit in 5 minutes. It should have a timeout when it communicates to devices and it should never take minutes to query devices.
I think I found the immediate cause: same as in bug#194727 May 24 22:00:28 yv kernel: pcm6: Waiting for sound application to exit! May 24 22:00:28 yv kernel: pcm6: unregister: mixer busy May 24 22:00:28 yv kernel: pcm6: Waiting for sound application to exit! May 24 22:00:28 yv kernel: pcm6: unregister: mixer busy May 24 22:00:28 yv kernel: pcm6: Waiting for sound application to exit! May 24 22:00:28 yv kernel: pcm6: unregister: mixer busy Once pulseaudio was killed - 'webcamd -l' began to return immediately.