Public bug reported:
I've lately been noticing a substantial lag that consumes an entire core
on my CPU (CPU% 1.00+). It's most noticeable with the cursor, where it
starts "jumping" around instead of moving smoothly across the screen.
It seems to stem from `gnome-shell` but I'm not sure how to further
debug this and find the root cause. I've included a couple screenshots
as well as debug information from `ubuntu-bug gnome-shell`.
If I reboot, it tends to go away. It only seems to happen after 4-5
hours of uptime.
Please let me know how to further debug this problem or if any other
information is needed.
```
$ lsb_release -rd
No LSB modules are available.
Description: Ubuntu 23.10
Release: 23.10
```
```
$ apt-cache policy gnome-shell
gnome-shell:
Installed: 45.2-0ubuntu1.1
Candidate: 45.2-0ubuntu1.1
Version table:
*** 45.2-0ubuntu1.1 500
500 http://us.archive.ubuntu.com/ubuntu mantic-updates/main amd64
Packages
500 http://security.ubuntu.com/ubuntu mantic-security/main amd64
Packages
100 /var/lib/dpkg/status
45.0-1ubuntu2 500
500 http://us.archive.ubuntu.com/ubuntu mantic/main amd64 Packages
```
ProblemType: Bug
DistroRelease: Ubuntu 23.10
Package: gnome-shell 45.2-0ubuntu1.1
ProcVersionSignature: Ubuntu 6.5.0-41.41-generic 6.5.13
Uname: Linux 6.5.0-41-generic x86_64
ApportVersion: 2.27.0-0ubuntu5
Architecture: amd64
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
Date: Mon Jun 24 14:09:02 2024
DisplayManager: gdm3
InstallationDate: Installed on 2023-11-01 (236 days ago)
InstallationMedia: Ubuntu 23.10.1 "Mantic Minotaur" - Release amd64 (20231016.1)
ProcEnviron:
LANG=en_US.UTF-8
PATH=(custom, no user)
SHELL=/bin/bash
TERM=xterm-256color
XDG_RUNTIME_DIR=<set>
RelatedPackageVersions: mutter-common 45.2-0ubuntu4
SourcePackage: gnome-shell
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: gnome-shell (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug mantic wayland-session
** Attachment added: "screenshot"
https://bugs.launchpad.net/bugs/2070313/+attachment/5792078/+files/Screenshot%20from%202024-06-24%2014-11-39.png
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/2070313
Title:
gnome-shell has high cpu usage and causes significant lag
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/2070313/+subscriptions
--
ubuntu-bugs mailing list
[email protected]
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
