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Date:      Mon, 18 Apr 2022 01:05:25 +0000
From:      bugzilla-noreply@freebsd.org
To:        bugs@FreeBSD.org
Subject:   [Bug 263385] Sound pops using Realtek ALC897 Intel Alder Lake.
Message-ID:  <bug-263385-227@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D263385

            Bug ID: 263385
           Summary: Sound pops using Realtek ALC897 Intel Alder Lake.
           Product: Base System
           Version: 13.1-RELEASE
          Hardware: amd64
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: kern
          Assignee: bugs@FreeBSD.org
          Reporter: verm@darkbeer.org

Created attachment 233292
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=3D233292&action=
=3Dedit
Output of /dev/sndstat

I am having sound pops on an Asus PRIME Z690-P WIFI using a i9 12900KF CPU.=
=20
The sound hardware is an ALC897.  Video card is an NVIDIA 3060.

I get frequent audio pops that seems to somehow be related to the video car=
d.=20
If I am playing a video through a web browser and scroll fast in another ta=
b or
window I get pops that coincide with my scrolling.  Also if I probe the vid=
eo
card say with 'vdpauinfo' it will do it as well.

There are no sounds when audio is not playing.  I'm exporting the audio via
Optical (ch6) to an external amp.  This does happen with headphones directly
connected to the back audio port (ch4) as well.

It's most noticeable playing through Firefox while being extremely faint/qu=
ick
playing the same video downloaded with mpv.

With hw.snd.verbose set to 4 I get these messages on my console:

  kernel: pcm4: WARNING: PCMDIR_PLAY DMA completion too fast/slow ! hwptr=
=3D896,
old=3D896 delta=3D0 amt=3D0 ready=3D2048 free=3D0
  kernel: pcm4: WARNING: PCMDIR_PLAY DMA completion too fast/slow ! hwptr=
=3D1152,
old=3D1152 delta=3D0 amt=3D0 ready=3D2048 free=3D0
  kernel: pcm4: WARNING: PCMDIR_PLAY DMA completion too fast/slow ! hwptr=
=3D256,
old=3D256 delta=3D0 amt=3D0 ready=3D2048 free=3D0

Attached is output from /dev/sndstat

Thank you.

--=20
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