the volume control seem have large gain (0x2e - 0x11)
you have to post the pulseaudio verbose log
did the crackling occur when capture volume is over 0dB ?
post the output of alsa-info.sh
Node 0x08 [Audio Input] wcaps 0x10011b: Stereo Amp-In
Control: name="Capture Switch", index=0, device=0
Control: name="Capture Volume", index=0, device=0
Device: name="ALC269 Analog", type="Audio", device=0
Amp-In caps: ofs=0x11, nsteps=0x2e, stepsize=0x03, mute=1
Amp-In vals: [0x0e 0x0e]
Converter: stream=2, channel=0
SDI-Select: 0
PCM:
rates [0x160]: 44100 48000 96000
bits [0xe]: 16 20 24
formats [0x1]: PCM
Connection: 1
0x23
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https://bugs.launchpad.net/bugs/1056795
Title:
Internal mic doesn't work on Dell mini 1010.
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