Please try deleting any local extensions:
cd ~/.local/share/gnome-shell/
rm -rf extensions
and then log in again.
If the problem keeps happening after that then the next thing to try is
to avoid using the HDMI port. Because the HDMI port is likely wired to
the Nvidia GPU and that requires extra processing to copy between GPUs.
Instead I would recommend using an adapter on one of the USB-C ports to
get direct access to the integrated GPU.
** Changed in: gnome-shell (Ubuntu)
Status: New => Incomplete
--
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to gnome-shell in Ubuntu.
https://bugs.launchpad.net/bugs/2120349
Title:
Playing YouTube in Firefox increase gnome-shell CPU usage
Status in GNOME Shell:
Unknown
Status in gnome-shell package in Ubuntu:
Incomplete
Bug description:
During normal work load on gnome-shell, it's CPU usage is less than 1%.
But while playing a YouTube video in Firefox, usage jump to 10-15% and causes
the fan to spin loud.
Distro: Ubuntu 25.04
Gnome-shell: 48.0
Firefox: 141.0.3 (snap)
"HARDWARE_VIDEO_DECODING" default available
The CPU is Intel i7-1165G7.
https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/8591#note_2519468
ProblemType: Bug
DistroRelease: Ubuntu 25.04
Package: gnome-shell 48.0-1ubuntu1
ProcVersionSignature: Ubuntu 6.14.0-27.27-generic 6.14.6
Uname: Linux 6.14.0-27-generic x86_64
ApportVersion: 2.32.0-0ubuntu5.3
Architecture: amd64
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
Date: Tue Aug 12 05:02:52 2025
DisplayManager: gdm3
InstallationDate: Installed on 2025-05-18 (85 days ago)
InstallationMedia: Ubuntu 25.04 "Plucky Puffin" - Release amd64 (20250415.3)
RelatedPackageVersions: mutter-common 48.1-1ubuntu3.1
SourcePackage: gnome-shell
UpgradeStatus: No upgrade log present (probably fresh install)
To manage notifications about this bug go to:
https://bugs.launchpad.net/gnome-shell/+bug/2120349/+subscriptions
--
Mailing list: https://launchpad.net/~desktop-packages
Post to : [email protected]
Unsubscribe : https://launchpad.net/~desktop-packages
More help : https://help.launchpad.net/ListHelp
