[Bug 2132339] Re: Unsupported V4L2 pixel format M420

Launchpad Bug Tracker 2132339 at bugs.launchpad.net
Wed Mar 18 04:17:21 UTC 2026


[Expired for wireplumber (Ubuntu) because there has been no activity for
60 days.]

** Changed in: wireplumber (Ubuntu)
       Status: Incomplete => Expired

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https://bugs.launchpad.net/bugs/2132339

Title:
  Unsupported V4L2 pixel format M420

Status in libcamera package in Ubuntu:
  Expired
Status in wireplumber package in Ubuntu:
  Expired

Bug description:
  In Google Chrome and Firefox I am not able to use my camera anymore.
  It has been working fine previously.

  Journalctl shows this error:

  wireplumber[3530]: [0:00:30.305634929] [3530]  INFO Camera camera_manager.cpp:326 libcamera v0.5.0
  wireplumber[3530]: [0:00:30.310411086] [3736]  WARN V4L2 v4l2_pixelformat.cpp:346 Unsupported V4L2 pixel format M420

  ProblemType: Bug
  DistroRelease: Ubuntu 26.04
  Package: wireplumber 0.5.12-1
  ProcVersionSignature: Ubuntu 6.17.0-6.6-generic 6.17.1
  Uname: Linux 6.17.0-6-generic x86_64
  ApportVersion: 2.33.1-0ubuntu3
  Architecture: amd64
  CasperMD5CheckResult: unknown
  CurrentDesktop: KDE
  Date: Mon Nov 24 16:25:48 2025
  InstallationDate: Installed on 2025-07-10 (137 days ago)
  InstallationMedia: Kubuntu 25.10 "Questing Quokka" - Daily amd64 (20250710)
  SourcePackage: wireplumber
  UpgradeStatus: Upgraded to resolute on 2025-11-24 (0 days ago)

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