Desktop freezes for one second then keeps going (when the gsconnect extension is loaded)

[Paolo Montrasio]

> What you expected to happen

Normal operation: no delays when typing or moving windows around

> What happened instead

Since a few days ago I started noticing occasional lag when typing (sometimes three words appearing together, as on a slow netword connection) and when moving windows, as if the system was on a high load. If I close almost everything it gets a little better, if I restart Gnome Shell with ALT-F2 r RETURN it gets better for a few minutes.

Ghome Shell is always one of the top consumers of CPU and RAM, but this was always the case. I don't have particular problems with RAM, I'm usually not using more than 20 GB out of 32 with many long running programs (VMs, browsers, etc).

Sometimes I notice a Gnome Shell crash in the logs, as the one I attached.

> The release of Ubuntu you are using, via 'lsb_release -rd' or System -> About Ubuntu

Description: Ubuntu 20.04.2 LTS
Release: 20.04

> The version of the package you are using, via 'apt-cache policy pkgname' or by checking in Software Center

gnome-shell:
  Installed: 3.36.7-0ubuntu0.20.04.1
  Candidate: 3.36.7-0ubuntu0.20.04.1
  Version table:
 *** 3.36.7-0ubuntu0.20.04.1 500
        500 http://it.archive.ubuntu.com/ubuntu focal-updates/main amd64 Packages
        100 /var/lib/dpkg/status
     3.36.4-1ubuntu1~20.04.2 500
        500 http://security.ubuntu.com/ubuntu focal-security/main amd64 Packages
     3.36.1-5ubuntu1 500
        500 http://it.archive.ubuntu.com/ubuntu focal/main amd64 Packages

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: gnome-shell 3.36.7-0ubuntu0.20.04.1
ProcVersionSignature: Ubuntu 5.4.0-70.78-generic 5.4.94
Uname: Linux 5.4.0-70-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.11-0ubuntu27.16
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Mon Apr 19 11:28:45 2021
DisplayManager: gdm3
InstallationDate: Installed on 2019-10-19 (548 days ago)
InstallationMedia: Ubuntu 19.10 "Eoan Ermine" - Release amd64 (20191017)
RelatedPackageVersions: mutter-common 3.36.7+git20201123-0.20.04.1
SourcePackage: gnome-shell
UpgradeStatus: Upgraded to focal on 2020-07-05 (288 days ago)

[Daniel van Vugt (vanvugt)]

Thanks for the bug report.

Please start by uninstalling all of these extensions and then reboot:

'<email address hidden>', '<email address hidden>', '<email address hidden>', '<email address hidden>', '<email address hidden>', '<email address hidden>', '<email address hidden>', 'notification-center@Selenium-H', '<email address hidden>', '<email address hidden>', '<email address hidden>', '<email address hidden>', '<email address hidden>', '<email address hidden>', '<email address hidden>', '<email address hidden>', '<email address hidden>', '<email address hidden>'

[Paolo Montrasio (paolo-paolomontrasio)]

Hi Daniel, I did that a few days ago. The extension that triggers the problem is gsconnect. There is a related open bug on that extension at https://github.com/GSConnect/gnome-shell-extension-gsconnect/issues/1028

I waited to report it here because we were doing some investigations then I forgot. My bad.

It could be a problem completely due to the extension or split between the extension and the shell. I don't know how to help investing it.

[Erich Eickmeyer (eeickmeyer)]

As the repository version of this extension (installed via package) cannot possibly work in focal, I'm closing this bug as invalid.