I had mpd/mpc running on my Ubuntu 12.04.3 LTS headless, X-less server. I decided to switch out the songs; I moved the old songs out of the /Music directory, moved the new songs in, and ran mpc update, but it failed to resume playing.

Naturally, I started changing things, according to what I could find on Google, but nothing seems to work.

When I run mpc commands, like mpc status, I get the error message Failed to read mixer for 'My ALSA Device': no such mixer control: PCM.

I can play music when I use the command sudo aplay piano.wav, and similar commands.

Here's some diagnostic info: http://pastebin.com/1CzbeYBC. It contains

• /etc/mpd.conf


• aplay -L


• aplay -l


• mpd verbose from the command line


• amixer & amixer contents

I would appreciate any pointers! Thank you.