Comment 3 for bug 1080282

vt1708s is a 8 channel codec

as your motherboard has a grey jack

when independent hp is ON

only support 5.1 by rear panel and hp use 0x25 audio output

Node 0x1d [Pin Complex] wcaps 0x40058d: Stereo Amp-Out
  Control: name="Headphone Playback Switch", index=0, device=0
    ControlAmp: chs=3, dir=Out, idx=0, ofs=0
  Control: name="Independent HP", index=0, device=0
  Control: name="Front Headphone Jack", index=0, device=0
  Amp-Out caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
  Amp-Out vals: [0x00 0x00]
  Pincap 0x0000233c: IN OUT HP Detect
    Vref caps: HIZ 50 100
  Pin Default 0x0221401f: [Jack] HP Out at Ext Front
    Conn = 1/8, Color = Green
    DefAssociation = 0x1, Sequence = 0xf
  Pin-ctls: 0xc0: OUT HP VREF_HIZ
  Unsolicited: tag=01, enabled=1
  Power states: D0 D1 D2 D3
  Power: setting=D0, actual=D0
  Connection: 2
     0x16* 0x25

Simple mixer control 'Headphone',0
  Capabilities: pswitch penum
  Playback channels: Front Left - Front Right
  Mono:
  Front Left: Playback [on]
  Front Right: Playback [on]

  off: Off (priority 0)
 active profile: <output:analog-stereo>
 sinks:
  alsa_output.pci-0000_00_14.2.analog-stereo/#1: Built-in Audio Analogue Stereo
 sources:
  alsa_output.pci-0000_00_14.2.analog-stereo.monitor/#2: Monitor of Built-in Audio Analogue Stereo
 ports:
  analog-output: Analogue Output (priority 9900, available: unknown)
   properties:

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