if you have green. pink and blue jack at rear panel
0x15 , 0x16 and 0x17 should have front. surround center and lfe volume
control instead of speaker playback volume
you have to send email to alsa devel mailing list
Node 0x15 [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: [0x7f 0x7f]
Converter: stream=8, channel=0
Power: setting=D0, actual=D0
Delay: 13 samples
Node 0x16 [Audio Output] wcaps 0xd0c05: Stereo Amp-Out R/L
Control: name="Headphone Playback Volume", index=0, device=0
ControlAmp: chs=3, dir=Out, idx=0, ofs=63
Control: name="Headphone Playback Switch", index=0, device=0
ControlAmp: chs=3, dir=Out, idx=0, ofs=0
Amp-Out caps: N/A
Amp-Out vals: [0x7f 0x7f]
Converter: stream=8, channel=0
Power: setting=D0, actual=D0
Delay: 13 samples
Node 0x17 [Audio Output] wcaps 0xd0c05: Stereo Amp-Out R/L
Amp-Out caps: N/A
Amp-Out vals: [0xff 0xff]
Converter: stream=0, channel=0
Power: setting=D0, actual=D0
Delay: 13 samples
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https://bugs.launchpad.net/bugs/1074427
Title:
[SG41, IDT 92HD89C2, Green Headphone Out, Front] No sound at all
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