@David

There are some script errors when I run the analyser and the node editor
is blank, but I can get the text dump

Mic plugged in:

0x1a: 
Node 0x1a [Pin Complex] wcaps 0x400481: Stereo
  Pincap 0x00001324: IN Detect
    Vref caps: HIZ 50 80
  Pin Default 0x04a190f0: [Jack] Mic at Ext Right
    Conn = 1/8, Color = Pink
    DefAssociation = 0xf, Sequence = 0x0
  Pin-ctls: 0x24: IN VREF_80
  Unsolicited: tag=0x00, enabled=0
  Power: setting=D0, actual=D0
0x17:
Node 0x17 [Audio Selector] wcaps 0x30050d: Stereo Amp-Out
  Amp-Out caps: ofs=0x00, nsteps=0x04, stepsize=0x27, mute=0
  Amp-Out vals: [0x04 0x04]
  Power: setting=D0, actual=D0
  Connection: 4
     0x1a* 0x1b 0x1d 0x1e
0x14:
Node 0x14 [Audio Input] wcaps 0x100d1b: Stereo Amp-In R/L
  Amp-In caps: ofs=0x4a, nsteps=0x50, stepsize=0x03, mute=1
  Amp-In vals: [0x50 0x50] [0x80 0x80] [0x50 0x50] [0x80 0x80]
  Converter: stream=0, channel=0
  SDI-Select: 0
  PCM:
    rates [0x160]: 44100 48000 96000
    bits [0xe]: 16 20 24
    formats [0x1]: PCM
  Power: setting=D0, actual=D0
  Connection: 4
     0x17 0x18 0x23* 0x24

Mic unplugged:

0x23:
Node 0x23 [Pin Complex] wcaps 0x40040b: Stereo Amp-In
  Amp-In caps: ofs=0x00, nsteps=0x04, stepsize=0x2f, mute=0
  Amp-In vals: [0x00 0x00]
  Pincap 0x00000020: IN
  Pin Default 0x95a601f0: [Fixed] Mic at Int Top
    Conn = Digital, Color = Unknown
    DefAssociation = 0xf, Sequence = 0x0
    Misc = NO_PRESENCE
  Power: setting=D0, actual=D0
0x14:
Node 0x14 [Audio Input] wcaps 0x100d1b: Stereo Amp-In R/L
  Amp-In caps: ofs=0x4a, nsteps=0x50, stepsize=0x03, mute=1
  Amp-In vals: [0x50 0x50] [0x80 0x80] [0x50 0x50] [0x80 0x80]
  Converter: stream=0, channel=0
  SDI-Select: 0
  PCM:
    rates [0x160]: 44100 48000 96000
    bits [0xe]: 16 20 24
    formats [0x1]: PCM
  Power: setting=D0, actual=D0
  Connection: 4
     0x17 0x18 0x23* 0x24


** Attachment added: "alsa-info.txt"
   
https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/725265/+attachment/1989780/+files/alsa-info.txt

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https://bugs.launchpad.net/bugs/725265

Title:
  [Vostro 1015] Internal/external microphone is non-functional

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