Node 0x0b [Pin Complex] wcaps 0x410101: Stereo
  Control: name="Speaker Phantom Jack", index=0, device=0
  Pincap 0x00000050: OUT Balanced
  Pin Default 0x90100112: [Fixed] Speaker at Int N/A
    Conn = Unknown, Color = Unknown
    DefAssociation = 0x1, Sequence = 0x2
    Misc = NO_PRESENCE
  Pin-ctls: 0x00:
  Delay: 1 samples
  Connection: 1

how many speaker since the node support balanced  mode ?

speaker is muted by the driver when headphone is plugged


control.17 {
                iface CARD
                name 'Headphone Jack'
                value true
                comment {
                        access read
                        type BOOLEAN
                        count 1
                }
        }

do you mean Jack detection of headphone in incorrect ?

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https://bugs.launchpad.net/bugs/1355984

Title:
  Built in speakers do not work on iMac 14,2 and iMac 14,4

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