(In reply to Takashi Iwai from comment #207)
> Did you try to define AMD_FIXED_FIFO_IN_FRAMES in the patch, too?
> Also, try to increase the FIFO size defined there.  The current value (256
> bytes and 32 frames) is just a guess work and it might need larger size.
> 
> And, the delay happens even with the patch no.6?  Then my theory wasn't
> right, and it implies that the position reporting itself is delayed or the
> transfer is delayed by some reason.
> 
> For analyzing it, we'd need the even tracing.  Please try to get trace logs
> in /sys/kernel/debug/tracing/events/hda_controller while capturing and the
> retard playback.  Some instructions are found in
> Documentation/sound/hd-audio/notes.rst.

Compiling a *4 in the parameters, I'll report back shortly.

Yes, the only clean audio stream from PA and arecord was with the define
enabled in the source code.

If it doesen't change, i'll post a trace from the codec.

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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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