Comment 20 for bug 1256646

you have to follow up with tiwai how to fix up node 0x20 of your vt1708b

since it prevent your nvidia hdmi codec

Node 0x20 [Pin Complex] wcaps 0x400701: Stereo Digital
  Control: name="SPDIF Phantom Jack", index=0, device=0
  Pincap 0x00000010: OUT
  Pin Default 0x985601f0: [Fixed] Digital Out at Int HDMI
    Conn = Digital, Color = Unknown
    DefAssociation = 0xf, Sequence = 0x0
    Misc = NO_PRESENCE
  Pin-ctls: 0x40: OUT
  Power states: D0 D1 D2 D3
  Power: setting=D0, actual=D0
  Connection: 1
     0x12