Last LTS version of ubuntu use a deprecated gnome version with crashes and known performance issues

[Yhojann Aguilera]

Sometimes gnome becomes too slow and consumes too much CPU, during the day sometimes it runs very smoothly and suddenly it gets extremely slow and the cpu consumption gets too high.

I have notified the Gnome development team of this, providing all possible evidence, but they have told me that my system uses an outdated and unsupported version of Gnome: https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/6788

It is the version that comes by default in the latest updated version of Ubuntu 22.04 LTS.

Why is Ubuntu using an outdated version that has known performance issues?, how can I fix the problem I'm currently having with my system?

The main problem:

Enviroment:

whk@whk-MS-7D53:~$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 22.04.2 LTS
Release: 22.04
Codename: jammy
whk@whk-MS-7D53:~$ gnome-shell --version
GNOME Shell 42.5

I don't use third party extensions in gnome shell, the problem is observed in xorg and in wayland.
My hardware:

- CPU: AMD Ryzen 7 5800X3D.
- RAM: 128 GB 3200Mhz.
- Disk: WD BLACK 2TB SN770 NVMe.
- Motherboard: MSI MPG X570S Edge.
- GPU: XFX Speedster MERC319 AMD Radeon RX 6800 XT.

Sometimes gnome becomes too slow and consumes too much CPU, during the day sometimes it runs very smoothly and suddenly it gets extremely slow and the cpu consumption gets too high, the dock barely responds, the windows move very slowly, but at the same time I can open a new generation game and run excellently at 60fps (need for speed heat over steam), so I doubt it's a graphic driver problem.
I don't know why this happens, it happens randomly during the course of the day. I've checked the computer logs but currently I don't see anything relevant.

Some time ago I raised a similar problem: https://gitlab.gnome.org/GNOME/tracker/-/issues/342 , i still have the same symptoms but without the log messages in rsyslog.

I have created a video reproducing this problem: https://www.youtube.com/watch?v=aRhgkfbu4AI
Some points to consider:

- I don't use gnome shell extensions.
- Gnome software and Snap store are uninstalled so the consumption issue doesn't go that way.
- All my apps are closed, I don't have any personal apps open in the background.
- The open directory has no files so I rule out that it could be a high load due to content rendering.
- Disk usage is low so there are no IO blocks.
- The whole gnome environment gets slow, not just the windows, but also the context menu display, side dock navigation and top menu display when trying to shut down the computer, but the content of the other applications is very fast, so I don't think it's a general problem with the equipment or hardware, otherwise the other applications would have a very bad performance, but it's not like that. I think the problem is caused solely by gnome, but I don't know how to diagnose this.

If you need more information or to run some kind of diagnostic, let me know.

ProblemType: Bug
DistroRelease: Ubuntu 22.04
Package: gnome-shell 42.5-0ubuntu1
ProcVersionSignature: Ubuntu 5.19.0-45.46~22.04.1-generic 5.19.17
Uname: Linux 5.19.0-45-generic x86_64
ApportVersion: 2.20.11-0ubuntu82.5
Architecture: amd64
CasperMD5CheckMismatches: ./pool/restricted/l/linux-restricted-modules/linux-objects-nvidia-510-5.15.0-43-generic_5.15.0-43.46+1_amd64.deb
CasperMD5CheckResult: fail
CurrentDesktop: ubuntu:GNOME
Date: Fri Jun 23 14:57:20 2023
DisplayManager: gdm3
InstallationDate: Installed on 2022-12-20 (184 days ago)
InstallationMedia: Ubuntu 22.04.1 LTS "Jammy Jellyfish" - Release amd64 (20220809.1)
RelatedPackageVersions: mutter-common 42.5-0ubuntu1
SourcePackage: gnome-shell
UpgradeStatus: No upgrade log present (probably fresh install)
mtime.conffile..etc.logrotate.d.apport: 2023-03-04T17:49:04.367382

[Jeremy Bícha (jbicha)]

We are testing gnome-shell 42.9 for Ubuntu 22.04 LTS now. Therefore, I am marking this a duplicate of the tracking bug for that update.