Thanks. And good catch, yes it should be
MUTTER_DEBUG_ENABLE_ATOMIC_KMS=0 on 22.04
It sounds like the main issue is the input rate of the Razer DeathAdder
V2 and gnome-shell's inefficient processing of a high event rate. You
should be able to bring it under control with kernel parameter
usbhid.mousepoll=2 (or 4 or 8). But this is still a gnome-shell
performance bug.
** Summary changed:
- gnome-shell high CPU utilization when moving mouse cursor
+ gnome-shell high CPU utilization when moving a high frequency mouse
** Changed in: gnome-shell (Ubuntu)
Status: Incomplete => New
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https://bugs.launchpad.net/bugs/2051383
Title:
gnome-shell high CPU utilization when moving a high frequency mouse
Status in gnome-shell package in Ubuntu:
New
Bug description:
When I simply move my mouse cursor on an empty desktop, gnome-shell's
CPU usage goes up from 20% (when idle) to 60%, which causes
stuttering.
ProblemType: Bug
DistroRelease: Ubuntu 22.04
Package: gnome-shell 42.9-0ubuntu2
ProcVersionSignature: Ubuntu 6.5.0-15.15~22.04.1-generic 6.5.3
Uname: Linux 6.5.0-15-generic x86_64
NonfreeKernelModules: zfs
ApportVersion: 2.20.11-0ubuntu82.5
Architecture: amd64
CasperMD5CheckResult: unknown
CurrentDesktop: ubuntu:GNOME
Date: Fri Jan 26 23:31:26 2024
DisplayManager: gdm3
EcryptfsInUse: Yes
InstallationDate: Installed on 2018-03-17 (2140 days ago)
InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Alpha amd64 (20180316)
RebootRequiredPkgs: Error: path contained symlinks.
RelatedPackageVersions: mutter-common 42.9-0ubuntu5
SourcePackage: gnome-shell
UpgradeStatus: Upgraded to jammy on 2022-06-02 (603 days ago)
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