[Pkg-utopia-maintainers] Bug#1106569: pipewire: Audio intermittently crackles and distorts severely specifically on Trixie with Pipewire

[Roman Lebedev]

I also have started hearing occasional crackling in the last few
months in debian sid.
It was fine in Jan-Feb, and appeared maybe in March-April.
My PW has always been running with RT prio, maybe this is a kernel regression?

Roman.

On Mon, May 26, 2025 at 3:09 PM gigaqueen <debbug at 4-science.com> wrote:
>
> Package: pipewire
> Version: 1.4.2-1
> Severity: important
> X-Debbugs-Cc: debbug at 4-science.com
>
> Dear Maintainer,
> There is a problem with Trixie's current Pipewire version.
>
>    * What led up to the situation?
>         This issue began when I upgraded to Debian Trixie. It was not present in Bookworm.
>
>    * What exactly did you do (or not do) that was effective (or
>      ineffective)?
>         I attempted the following fixes:
>
>         Made a file in /etc/security/limits.d/50-pw-rlimits.conf
>         File Contents:
>         @pipewire   - rtprio  95
>         @pipewire   - nice    -19
>         @pipewire   - memlock 4194304
>
>    * What was the outcome of this action?
>         The issue remained unaffected.
>
>    * What outcome did you expect instead?
>         Not applicable - I was attempting to apply this fix
>
>
>
> -- System Information:
> Debian Release: 13.0
>   APT prefers testing
>   APT policy: (500, 'testing')
> Architecture: amd64 (x86_64)
> Foreign Architectures: i386
>
> Kernel: Linux 6.12.27-amd64 (SMP w/12 CPU threads; PREEMPT)
> Kernel taint flags: TAINT_PROPRIETARY_MODULE, TAINT_OOT_MODULE, TAINT_UNSIGNED_MODULE
> Locale: LANG=en_AU.UTF-8, LC_CTYPE=en_AU.UTF-8 (charmap=UTF-8), LANGUAGE=en_AU:en
> Shell: /bin/sh linked to /usr/bin/dash
> Init: systemd (via /run/systemd/system)
> LSM: AppArmor: enabled
>
> Versions of packages pipewire depends on:
> ii  adduser                  3.152
> ii  init-system-helpers      1.68
> ii  libpipewire-0.3-modules  1.4.2-1
> ii  pipewire-bin             1.4.2-1
>
> pipewire recommends no packages.
>
> pipewire suggests no packages.
>
> -- no debconf information
>