if the subwoofer is at mono node 0x10, you need a pin fixup or model
Node 0x10 [Pin Complex] wcaps 0x400500: Mono
Pincap 0x00000010: OUT
Pin Default 0x40f000f0: [N/A] Other at Ext N/A
Conn = Unknown, Color = Unknown
DefAssociation = 0xf, Sequence = 0x0
Pin-ctls: 0x00:
Power: setting=D0, actual=D0
Connection: 1
0x1a
Node 0x13 [Audio Output] wcaps 0xd0c05: Stereo Amp-Out R/L
Control: name="Speaker Playback Volume", index=0, device=0
ControlAmp: chs=3, dir=Out, idx=0, ofs=63
Control: name="Speaker Playback Switch", index=0, device=0
ControlAmp: chs=3, dir=Out, idx=0, ofs=0
Device: name="STAC92xx Analog", type="Audio", device=0
Amp-Out caps: N/A
Amp-Out vals: [0x5e 0x5e]
Converter: stream=5, channel=0
Power: setting=D0, actual=D0
Delay: 13 samples
Node 0x19 [Audio Selector] wcaps 0x300501: Stereo
Power: setting=D0, actual=D0
Connection: 3
0x13* 0x14 0x1c
Node 0x1a [Audio Mixer] wcaps 0x200500: Mono
Power: setting=D0, actual=D0
Connection: 1
0x19
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https://bugs.launchpad.net/bugs/923250
Title:
subwoofer and headphone won't play nicely on dv7
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