Acer Aspire v5 122p alsa, mpd

How to get it work

Alsa

~/.asoundrc :

pcm.dsp {
  type plug
  slave.pcm "dmix"
}

/etc/modprobe.d/50-alsa.conf:

options snd-hda-intel index=1

So, HDMI is second device, and sources mixings by dmix

mpd

/etc/mpd.conf: 
music_directory         "/home/{username}/Music"
playlist_directory      "/home/{username}/.mpd/playlists"
db_file                        "/home/{username}/.mpd/mpd.db"
log_file                "/home/{username}/.mpd/mpd.log"

audio_output {
        type                    "alsa"
        name                    "ALSA Device"
}

Last steps

remove pulseaudio, if exists, and:

mkdir -p ~/.mpd/playlists
sudo systemctl enable mpdsudo systemctl start mpd

mpc load <playlist_name>

mpc play 1