Bug 982786

seem auto Mic is enabled when there are only internal mic and Mic jack


did pulseaudio expect to find internal Mic boot ?

post the pulseaudio verbose log when you plugged and unplugged extra mic

pulseaudio -vvvv


Node 0x14 [Audio Input] wcaps 0x100d1b: Stereo Amp-In R/L
  Control: name="Capture Volume", index=0, device=0
    ControlAmp: chs=3, dir=In, idx=0, ofs=0
  Control: name="Capture Switch", index=0, device=0
    ControlAmp: chs=3, dir=In, idx=0, ofs=0
  Device: name="CX20585 Analog", type="Audio", device=0
  Amp-In caps: ofs=0x4a, nsteps=0x50, stepsize=0x03, mute=1
  Amp-In vals:  [0x4a 0x4a] [0x80 0x80] [0x80 0x80] [0x80 0x80]
  Converter: stream=4, channel=0
  SDI-Select: 0
  PCM:
    rates [0x160]: 44100 48000 96000
    bits [0xe]: 16 20 24
    formats [0x1]: PCM
  Power states:  D0 D1 D2 D3 D3cold
  Power: setting=D0, actual=D0
  Connection: 4
     0x17* 0x18 0x23 0x24

Node 0x17 [Audio Selector] wcaps 0x30050d: Stereo Amp-Out
  Control: name="Mic Boost Volume", index=0, device=0
    ControlAmp: chs=3, dir=Out, idx=0, ofs=0
  Amp-Out caps: ofs=0x00, nsteps=0x04, stepsize=0x27, mute=0
  Amp-Out vals:  [0x03 0x03]
  Power states:  D0 D1 D2 D3 D3cold
  Power: setting=D0, actual=D0
  Connection: 4
     0x1a* 0x1b 0x1d 0x1e
Node 0x18 [Audio Selector] wcaps 0x30050d: Stereo Amp-Out
  Amp-Out caps: ofs=0x00, nsteps=0x04, stepsize=0x27, mute=0
  Amp-Out vals:  [0x00 0x00]
  Power states:  D0 D1 D2 D3 D3cold
  Power: setting=D0, actual=D0
  Connection: 4
     0x1a* 0x1b 0x1d 0x1e

Node 0x1a [Pin Complex] wcaps 0x400481: Stereo
  Control: name="Internal Mic Phantom Jack", index=0, device=0
  Pincap 0x00001324: IN Detect
    Vref caps: HIZ 50 80
  Pin Default 0x90a70120: [Fixed] Mic at Int N/A
    Conn = Analog, Color = Unknown
    DefAssociation = 0x2, Sequence = 0x0
    Misc = NO_PRESENCE
  Pin-ctls: 0x24: IN VREF_80
  Unsolicited: tag=00, enabled=0
  Power states:  D0 D1 D2 D3 D3cold
  Power: setting=D0, actual=D0
Node 0x1b [Pin Complex] wcaps 0x400581: Stereo
  Control: name="Mic Jack", index=0, device=0
  Pincap 0x00011334: IN OUT EAPD Detect
    Vref caps: HIZ 50 80
  EAPD 0x2: EAPD
  Pin Default 0x04a11030: [Jack] Mic at Ext Right
    Conn = 1/8, Color = Black
    DefAssociation = 0x3, Sequence = 0x0
  Pin-ctls: 0x24: IN VREF_80
  Unsolicited: tag=02, enabled=1
  Power states:  D0 D1 D2 D3 D3cold
  Power: setting=D0, actual=D0
  Connection: 2
     0x10* 0x11

http://cgit.freedesktop.org/pulseaudio/pulseaudio/tree/src/modules/alsa/mixer/paths/analog-input-internal-mic.conf 

the work around may be keep Mic boost on instead of off

(In reply to Raymond from comment #1)
> seem auto Mic is enabled when there are only internal mic and Mic jack
> 
> 
> did pulseaudio expect to find internal Mic boot ?
> 
> post the pulseaudio verbose log when you plugged and unplugged extra mic

This notebook has an external microphone jack, but nothing is plugged into it. The internal microphone appears to work OK once the mic boost is enabled.

I have attached a pulseaudio -vvvv log. After starting pulseaudio, I turned the mic boost up a bit in alsamixer, then switched to "Analog Input" and back to the internal microphone as described earlier.

I'll give the suggested patch a go.

Created attachment 774507 [details]
pulseaudio -vvvv output

(In reply to Raymond from comment #2)
> http://cgit.freedesktop.org/pulseaudio/pulseaudio/tree/src/modules/alsa/
> mixer/paths/analog-input-internal-mic.conf 
> 
> the work around may be keep Mic boost on instead of off

Using the linked .conf file, PA leaves the mic boost alone. There is only one input device present, "Analog Input - Built-In Audio". I don't have my headset to hand right now to test whether another device appears when a microphone is plugged in. I'll let you know when I've tested it.

I'll close this and create a new bug as I've now moved to F21.