Comment 2 for bug 1078924

you have retasked mic in jack as line in jack

Simple mixer control 'Mic Jack Mode',0
  Capabilities: enum
  Items: 'Mic In' 'Line In'
  Item0: 'Line In'

 active profile: <output:analog-stereo+input:analog-stereo>
 sinks:
  alsa_output.pci-0000_00_1b.0.analog-stereo/#1: Built-in Audio Analog Stereo
 sources:
  alsa_output.pci-0000_00_1b.0.analog-stereo.monitor/#1: Monitor of Built-in Audio Analog Stereo
  alsa_input.pci-0000_00_1b.0.analog-stereo/#2: Built-in Audio Analog Stereo
 ports:
  analog-output: Analog Output (priority 9900, available: unknown)
   properties:

  analog-output-headphones: Headphones (priority 9000, available: yes)
   properties:

  analog-input-microphone-internal: Internal Microphone (priority 8900, available: no)
   properties:

  analog-input-microphone-dock: Dock Microphone (priority 7800, available: no)
   properties:

  analog-input-microphone: Microphone (priority 8700, available: yes)
   properties:

  analog-input-linein: Line In (priority 8100, available: unknown)
   properties: