This bug was fixed in the package mutter - 44.1-1ubuntu1

---------------
mutter (44.1-1ubuntu1) mantic; urgency=medium

  * Merge with Debian (LP: #2020225, LP: #2012100, LP: #2012717,
    LP: #2013216, LP: #2019225, LP: #2006044, LP: #2015861, LP: #1999578,
    LP: #2011251, LP: #2016308)
  * Remaining changes:
    - Add x11-Add-support-for-fractional-scaling-using-Randr.patch
    - Add window-Add-ability-to-override-the-edge-constraints.patch
      + Make possible for extensions (such as Tiling Assistant) to override
        window constraints. (LP: #2007710, #2011611)

mutter (44.1-1) experimental; urgency=medium

  [ Jeremy Bícha ]
  * New upstream release
  * Drop bash patch applied in new release
  * debian/libmutter-12-0.symbols: Add new symbols

  [ Daniel van Vugt ]
  * Update triple buffering patch for Mutter 44.1

  [ Marco Trevisan (Treviño) ]
  * Fix issue with Firefox opening black window in wayland sessions
    - Add d/p/display-Set-compositor-selection-earlier-on-XWayland.patch
      (LP: #1987976)

 -- Jeremy Bícha <[email protected]>  Fri, 19 May 2023 16:24:49 -0400

** Changed in: mutter (Ubuntu)
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/2019225

Title:
  log spam : meta_wayland_buffer_try_acquire_scanout: assertion
  'scanout' failed

Status in Mutter:
  Fix Released
Status in mutter package in Ubuntu:
  Fix Released

Bug description:
  every second this is appended to the system logs:

  ```
  sudo journalctl -f
  ...
   
  ... gnome-shell[3849]: meta_wayland_buffer_try_acquire_scanout: assertion 
'scanout' failed
  ```

  This is a bug in mutter - here is the upstream bug report:

  https://gitlab.gnome.org/GNOME/mutter/-/issues/2702

  and here is the fix, which just disables the log spam

  https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2918

  which was merged into the main branch on March 20th, 2023

  ProblemType: Bug
  DistroRelease: Ubuntu 23.04
  Package: mutter 44.0-2ubuntu4
  ProcVersionSignature: Ubuntu 6.2.0-20.20-generic 6.2.6
  Uname: Linux 6.2.0-20-generic x86_64
  ApportVersion: 2.26.1-0ubuntu2
  Architecture: amd64
  CasperMD5CheckResult: unknown
  CurrentDesktop: ubuntu:GNOME
  Date: Thu May 11 16:09:25 2023
  InstallationDate: Installed on 2020-01-02 (1225 days ago)
  InstallationMedia: Ubuntu 19.04 "Disco Dingo" - Release amd64 (20190416)
  SourcePackage: mutter
  UpgradeStatus: Upgraded to lunar on 2023-04-24 (17 days ago)

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