Comment 2 for bug 1080282

when independent hp is OFF and headphon is plugged . it is normal that rear line out is muted be default

dou you mean hp jack detect is incorrect

Simple mixer control 'Independent HP',0
  Capabilities: enum
  Items: 'OFF' 'ON'
  Item0: 'OFF'

 control.43 {
  iface CARD
  name 'Front Headphone Jack'
  value true
  comment {
   access read
   type BOOLEAN
   count 1
  }
 }