Comment 19 for bug 1509950

the critial point is node 0xf lack HP amp , only node 0xA has pincap HP

Node 0x0f [Pin Complex] wcaps 0x400181: Stereo
  Pincap 0x00000037: IN OUT Detect Trigger ImpSense
  Pin Default 0x02011020: [Jack] Line Out at Ext Front
    Conn = 1/8, Color = Black
    DefAssociation = 0x2, Sequence = 0x0
  Pin-ctls: 0x40: OUT
  Unsolicited: tag=01, enabled=1
  Connection: 1
     0x05