Comment 6 for bug 1284466

 ports:
  analog-output-speaker: Speakers (priority 10000, latency offset 0 usec, available: unknown)
   properties:
    device.icon_name = "audio-speakers"
  analog-output-headphones: Headphones (priority 9000, latency offset 0 usec, available: unknown)
   properties:
    device.icon_name = "audio-headphones"
 active port: <analog-output-speaker>

try hda-jack-sense-test to check the jack detection is correct

speaker should be muted since this jack is plugged

 control.30 {
  iface CARD
  name 'Front Headphone Surround Jack'
  value true