Mouse cursor stutters if nothing else is animating on screen

Bug #2040977 reported by Daniel van Vugt
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
Mutter
New
Unknown
linux (Ubuntu)
Opinion
Undecided
Unassigned
mutter (Ubuntu)
Fix Released
Medium
Daniel van Vugt

Bug Description

Using the touchpad on an X1 Carbon G10 with 90Hz OLED the mouse cursor stutters, unless something else is changing on screen (like running glmark2-wayland).

Workaround:

Put this in /etc/environment:

  MUTTER_DEBUG_FORCE_KMS_MODE=simple

and reboot.

ProblemType: Bug
DistroRelease: Ubuntu 23.10
Package: mutter (not installed)
ProcVersionSignature: Ubuntu 6.5.0-9.9-generic 6.5.3
Uname: Linux 6.5.0-9-generic x86_64
ApportVersion: 2.27.0-0ubuntu5
Architecture: amd64
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
Date: Thu Oct 26 15:48:28 2023
InstallationDate: Installed on 2023-10-23 (3 days ago)
InstallationMedia: Ubuntu 23.10.1 "Mantic Minotaur" - Release amd64 (20231016.1)
RebootRequiredPkgs: Error: path contained symlinks.
SourcePackage: mutter
UpgradeStatus: No upgrade log present (probably fresh install)

CVE References

Revision history for this message
Daniel van Vugt (vanvugt) wrote :
description: updated
Changed in mutter (Ubuntu):
importance: Undecided → Medium
status: New → Triaged
summary: - Mouse cursor stutters if nothing else is animating on screen
+ [X1 Carbon 10 OLED] Mouse cursor stutters if nothing else is animating
+ on screen
Changed in mutter:
status: Unknown → New
Changed in mutter (Ubuntu):
status: Triaged → In Progress
summary: - [X1 Carbon 10 OLED] Mouse cursor stutters if nothing else is animating
- on screen
+ Mouse cursor stutters if nothing else is animating on screen
tags: added: noble
Revision history for this message
Daniel van Vugt (vanvugt) wrote :

Kernel 6.8 has fixed it for all machines tested so far.

Changed in linux (Ubuntu):
status: New → Fix Released
Revision history for this message
Daniel van Vugt (vanvugt) wrote :

I was wrong. Kernel 6.8 is now exhibiting the same bug.

Changed in linux (Ubuntu):
status: Fix Released → Opinion
Revision history for this message
Daniel van Vugt (vanvugt) wrote :
Changed in mutter (Ubuntu):
status: In Progress → Fix Committed
Revision history for this message
Launchpad Janitor (janitor) wrote :

This bug was fixed in the package mutter - 46.0-1ubuntu6

---------------
mutter (46.0-1ubuntu6) noble; urgency=medium

  * Rebuild for CVE-2024-3094

 -- Jeremy Bícha <email address hidden> Sun, 31 Mar 2024 10:24:22 -0400

Changed in mutter (Ubuntu):
status: Fix Committed → Fix Released
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