log spam : meta_wayland_buffer_try_acquire_scanout: assertion 'scanout' failed

Bug #2019225 reported by scytlae
This bug affects 1 person
Affects Status Importance Assigned to Milestone
Fix Released
mutter (Ubuntu)
Status tracked in Mantic
Fix Released
Fix Released
Daniel van Vugt

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:


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


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)

Revision history for this message
scytlae (scytale-gmail) wrote :
tags: added: logspam
Changed in mutter (Ubuntu):
assignee: nobody → Daniel van Vugt (vanvugt)
importance: Undecided → Medium
status: New → Fix Committed
tags: added: fixed-in-mutter-44.1 fixed-upstream
Changed in mutter:
status: Unknown → Fix Released
Revision history for this message
Launchpad Janitor (janitor) wrote :

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 address hidden> Fri, 19 May 2023 16:24:49 -0400

Changed in mutter (Ubuntu):
status: Fix Committed → Fix Released
Changed in mutter (Ubuntu Lunar):
status: New → Fix Committed
importance: Undecided → Medium
Changed in mutter (Ubuntu Lunar):
status: Fix Committed → Fix Released
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