[alsa-devel] mic doesn't work with hda-intel/AD1983 driver

[Takashi Iwai]

At Wed, 29 Aug 2007 10:49:43 +0800,
Shuduo Sang wrote:
> 
> $alsactl -f sound store
> $ cat sound
>         control.10 {
>                 comment.access 'read write'
>                 comment.type BOOLEAN
>                 comment.count 2
>                 iface MIXER
>                 name 'Mic Playback Switch'
>                 value.0 true
>                 value.1 true
>         }

You should mute this.  Otherwise you'll hear the sound from mic as
analog-loopback.

>         control.15 {
>                 comment.access 'read write'
>                 comment.type INTEGER
>                 comment.count 2
>                 comment.range '0 - 3'
>                 iface MIXER
>                 name 'Mic Boost'
>                 value.0 0
>                 value.1 0
>         }

Raise this volume.

>         control.17 {
>                 comment.access 'read write'
>                 comment.type BOOLEAN
>                 comment.count 2
>                 iface MIXER
>                 name 'Capture Switch'
>                 value.0 false
>                 value.1 false
>         }

Turn on this.  Otherwise you cannot record.


Takashi