does the enter playback volume has and effect on the suboofer ?

there are only three DAC with volume control , the headphone will have
to share the volume control in 5.1

the reason why you change the spdif out to speaker is just a hack to
trick the driver to config 5.1 with the headphone playback volume
control

do you mean model=auto

echo 0x16 0x99130111 > /sys/class/sound/hwC0D0/user_pin_configs

and dynamic reconfig is not enough for the driver to create the bass
speaker playback volume using the new generic auto conf ?



Node 0x16 [Pin Complex] wcaps 0x40058d: Stereo Amp-Out
  Control: name="Center Playback Switch", index=0, device=0
    ControlAmp: chs=1, dir=Out, idx=0, ofs=0
  Control: name="LFE Playback Switch", index=0, device=0
    ControlAmp: chs=2, dir=Out, idx=0, ofs=0
  Amp-Out caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
  Amp-Out vals:  [0x00 0x00]
  Pincap 0x00000034: IN OUT Detect
  Pin Default 0x99130111: [Fixed] Speaker at Int ATAPI
    Conn = ATAPI, Color = Unknown
    DefAssociation = 0x1, Sequence = 0x1
    Misc = NO_PRESENCE
  Pin-ctls: 0x40: OUT
  Unsolicited: tag=00, enabled=0
  Power states:  D0 D1 D2 D3 EPSS
  Power: setting=D0, actual=D0
  Connection: 1

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https://bugs.launchpad.net/bugs/1040873

Title:
  [N56VZ, Realtek ALC663, Black Headphone Out, Right] No sound at all:
  Subwoofer not working

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