tuchkata@tuchkata ~ $ pulseaudio
E: [pulseaudio] pid.c: Daemon already running.
E: [pulseaudio] main.c: pa_pid_file_create() failed.
sudo killall pulseaudio
So it has problems after you've been playing loud audio for any length of time. But while the sound isn't working, if you plug in your power supply it plays the chime. Is that correct?