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[Bug 2122556] Re: 3.5mm microphone recognized but can’t be used as audio input

 

re #9: Ok, could the patch for Plucky then please be updated to also
include commit d42bfa56b7c94afa113048529d430c811c8ba651 – ideally as a
merge-proposal (e.g. based upon
https://code.launchpad.net/~slyon/ubuntu/+source/pipewire/+git/pipewire/+merge/493968)?

re #10: Thanks for the explanation. I'm not part of the SRU team, so
cannot give an definitive answer here. I like the idea of adding "block-
proposed-noble" until it is verified on all machines in the
certification pool and then maybe additionally use an extended phasing
period, which is possible. But you should probably reach out to the SRU
team directly to clarify those topics.

You can reach the SRU team on Matrix (#sru:ubuntu.com) -
https://matrix.to/#/#sru:ubuntu.com

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https://bugs.launchpad.net/bugs/2122556

Title:
  3.5mm microphone recognized but can’t be used as audio input

Status in OEM Priority Project:
  New
Status in pipewire package in Ubuntu:
  Fix Released
Status in pipewire source package in Noble:
  New
Status in pipewire source package in Plucky:
  New

Bug description:
  [ Impact ]
  Plug-in 3.5mm headset to Dell Pro 14 Premium PA14250.
  Microphone can be recognized, but it can't capture audio in g-c-c or any sound record application

  Restart pipewire can workaround the issue.
  $ systemctl --user restart pipewire

  [ Test Plan ]
  Find Dell Pro 14 Premium PA14250, plugin 3.5mm headset. Microphone can be recognized and able to record sound with applications

  [ Where problems could occur ]
  This SRU going to improve UCM handling and may affect the audio behavior.
  The large patch sets added from pipewire 1.1.83. And been landed and tested in Plucky.

  [ Other Info ]
  * Apport information
   ProblemType: Bug
   ApportVersion: 2.28.1-0ubuntu3.8
   Architecture: amd64
   CasperMD5CheckMismatches: ./casper/initrd ./casper/vmlinuz ./casper/minimal.standard.live.hotfix.manifest ./casper/minimal.standard.live.hotfix.size ./casper/minimal.standard.live.size ./casper/minimal.manifest ./casper/minimal.standard.manifest ./casper/minimal.standard.size ./casper/minimal.hotfix.size ./casper/minimal.standard.live.hotfix.squashfs ./casper/minimal.standard.hotfix.squashfs ./casper/minimal.standard.hotfix.size ./casper/minimal.hotfix.squashfs ./casper/minimal.standard.live.manifest ./casper/minimal.size ./boot/grub/grub.cfg
   CasperMD5CheckResult: fail
   DistributionChannelDescriptor:
     # This is the distribution channel descriptor for Ubuntu 24.04 for Dell
     # For more information see http://wiki.ubuntu.com/DistributionChannelDescriptor
     canonical-oem-somerville-noble-oem-24.04b-next-20250317-202
   DistroRelease: Ubuntu 24.04
   InstallationDate: Installed on 2025-09-05 (6 days ago)
   InstallationMedia: Ubuntu OEM 24.04.1 LTS "Noble Numbat" - Release amd64 (20250316)
   Package: pipewire 1.0.5-1ubuntu3.1
   PackageArchitecture: amd64
   ProcEnviron:
    LANG=en_US.UTF-8
    PATH=(custom, no user)
    SHELL=/bin/bash
    TERM=xterm-256color
    XDG_RUNTIME_DIR=<set>
   ProcVersionSignature: User Name 6.14.0-29.29~24.04.1-generic 6.14.8
   Tags: noble
   Uname: Linux 6.14.0-29-generic x86_64
   UpgradeStatus: No upgrade log present (probably fresh install)
   UserGroups: adm cdrom dip lxd sudo
   _MarkForUpload: True

  * Related upstream patches
   - UCM updates
     - https://gitlab.freedesktop.org/pipewire/pipewire/-/merge_requests/1800
   - vendor suggested fix
     - https://gitlab.freedesktop.org/pipewire/pipewire/-/commit/b9e130fd8c4893368613fb57ec87a0d70460f6b5
     - https://gitlab.freedesktop.org/pipewire/pipewire/-/commit/d42bfa56b7c94afa113048529d430c811c8ba651

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References