alsactl init: Mute CD Playback volume by default

The CD analog playback line is seldom used these days, as all
modern players rip the CD and use the DAC on the sound card.
In addition, it causes background hum on some machines.
Therefore keep it muted by default.

Signed-off-by: David Henningsson <>
Signed-off-by: Takashi Iwai <>
1 file changed