dv6745us, no data from mics.  I noticed that there seem to be 3 mics:

[EMAIL PROTECTED]:~$ amixer -c 0|grep Mic
Simple mixer control 'Docking Mic',0
Simple mixer control 'External Mic',0
Simple mixer control 'Internal Mic',0

wondering how I choose which apps are using?

[EMAIL PROTECTED]:~$ amixer -c 0
Simple mixer control 'Master',0
  Capabilities: pvolume pswitch pswitch-joined
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 74
  Mono:
  Front Left: Playback 61 [82%] [-13.00dB] [on]
  Front Right: Playback 61 [82%] [-13.00dB] [on]
Simple mixer control 'PCM',0
  Capabilities: pvolume
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 255
  Mono:
  Front Left: Playback 255 [100%] [0.00dB]
  Front Right: Playback 255 [100%] [0.00dB]
Simple mixer control 'IEC958',0
  Capabilities: pswitch pswitch-joined
  Playback channels: Mono
  Mono: Playback [off]
Simple mixer control 'IEC958 Default PCM',0
  Capabilities: pswitch pswitch-joined
  Playback channels: Mono
  Mono: Playback [on]
Simple mixer control 'Docking Mic',0
  Capabilities: volume pswitch
  Playback channels: Front Left - Front Right
  Capture channels: Front Left - Front Right
  Limits: 0 - 80
  Front Left: 80 [100%] [6.00dB] Playback [on]
  Front Right: 80 [100%] [6.00dB] Playback [on]
Simple mixer control 'External Mic',0
  Capabilities: volume pswitch
  Playback channels: Front Left - Front Right
  Capture channels: Front Left - Front Right
  Limits: 0 - 80
  Front Left: 80 [100%] [6.00dB] Playback [on]
  Front Right: 80 [100%] [6.00dB] Playback [on]
Simple mixer control 'Internal Mic',0
  Capabilities: volume pswitch
  Playback channels: Front Left - Front Right
  Capture channels: Front Left - Front Right
  Limits: 0 - 80
  Front Left: 80 [100%] [6.00dB] Playback [on]
  Front Right: 80 [100%] [6.00dB] Playback [on]



** Attachment added: "alsa-info.sh"
   http://launchpadlibrarian.net/20015338/alsa-info.txt

-- 
Microphone don't work 
https://bugs.launchpad.net/bugs/217562
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