Public bug reported:
When no external monitor is connected Gnome Shell activities animation
is sluggish. Once an external monitor is connected the animation becomes
noticeably smoother. It looks like the OS is not properly responding to
the extra processing demands by raising the CPU/GPU performance, and
having an external monitor connected somehow triggers a higher
performance level.
This is on a System76 Darter Pro machine with Intel® Core™ i7-8565U and
Intel UHD 620 running Ubuntu 21.04 in Wayland session.
ProblemType: Bug
DistroRelease: Ubuntu 21.04
Package: gnome-shell 3.38.4-1ubuntu3~21.04.1
ProcVersionSignature: Ubuntu
5.11.0-7620.21~1624379747~21.04~3abeff8~dev-generic 5.11.21
Uname: Linux 5.11.0-7620-generic x86_64
ApportVersion: 2.20.11-0ubuntu65.1
Architecture: amd64
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
Date: Wed Jul 21 12:51:55 2021
DisplayManager: gdm3
InstallationDate: Installed on 2021-07-14 (7 days ago)
InstallationMedia: Ubuntu 21.04 "Hirsute Hippo" - Release amd64 (20210420)
RelatedPackageVersions: mutter-common 3.38.4-1ubuntu2
SourcePackage: gnome-shell
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: gnome-shell (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug hirsute third-party-packages wayland-session
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https://bugs.launchpad.net/bugs/1937127
Title:
Gnome-shell animations smoother when external monitor is connected
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