(In reply to Luca from comment #181)
> (In reply to Takashi Iwai from comment #173)
> > Created attachment 284117 [details]
> > Test fis patch no.5
> 
> Tested on 1022:1457 also on my MSI AMD B350M, on ALC892 codec, Kernel 5.2.5
> 
> Works fine, thanks.
> 
> I'll try to build an ubuntu package with this kernel patch for 5.0

Oh sorry I spoke too soon!

However, sound capture definitely works fine when tested on
https://webcammictest.com/check-microphone.html (it didn't before this
patch)

However, the sound still crackles on both input/output when using
Discord.

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Touch seeded packages, which is subscribed to pulseaudio in Ubuntu.
https://bugs.launchpad.net/bugs/1801540

Title:
  Microphone distorted sound on ALC892/1220 on AMD chipsets

Status in Linux:
  Confirmed
Status in linux package in Ubuntu:
  Won't Fix
Status in pulseaudio package in Ubuntu:
  Won't Fix

Bug description:
  Not sure if I'll report this upstream but there is definitely an issue
  with microphone recording on my desktop, this is not happening on my
  laptop which has a different codec.

  Already tried all workarounds possible, no luck. Only with my desktop
  with this particular motherboard. No issues in Windows, the sound
  recorded in there is distorted and has some static and robotic tone on
  high-pitch.

  alsa-info on the attachments

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