it mainly depend on your computer chassis 's front audio panel is hda
(with jack dectection) and bios setup select the front audio panel type
Misc = NO_PRESENCE imply no jack detection circuit
Node 0x28 [Pin Complex] wcaps 0x40058d: Stereo Amp-Out
Control: name="Headphone Playback Switch", index=0, device=0
ControlAmp: chs=3, dir=Out, idx=0, ofs=0
Control: name="Independent HP", index=0, device=0
Amp-Out caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
Amp-Out vals: [0x00 0x00]
Pincap 0x0000233c: IN OUT HP Detect
Vref caps: HIZ 50 100
Pin Default 0x0221411f: [Jack] HP Out at Ext Front
Conn = 1/8, Color = Green
DefAssociation = 0x1, Sequence = 0xf
Misc = NO_PRESENCE
Pin-ctls: 0xc0: OUT HP VREF_HIZ
Unsolicited: tag=00, enabled=0
Power states: D0 D1 D2 D3
Power: setting=D0, actual=D0
Connection: 1
0x1bp
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https://bugs.launchpad.net/bugs/976076
Title:
Can't switch between speakers and headphones
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