https://bugs.kde.org/show_bug.cgi?id=391234
Bug ID: 391234
Summary: Joystick always detected in plasma wayland, causing
high CPU usage by system calls
Product: kwayland-integration
Version: unspecified
Platform: Archlinux Packages
OS: Linux
Status: UNCONFIRMED
Keywords: reproducible, usability, wayland
Severity: normal
Priority: NOR
Component: general
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: ---
Created attachment 111090
--> https://bugs.kde.org/attachment.cgi?id=111090&action=edit
Perf report on the left, and the pseudo-joystick on the right, as seen by KDE
Using Plasma on wayland (doesn't append on X), there are a lot of system calls
(seen as kworker activity) (see: screenshot and perf report) that are made and
lead to a constant 60% use on one of the cpus (=30% total CPU usage) to a
joystick that doesn't exist (similar to
https://bugs.kde.org/show_bug.cgi?id=336907 except for the unusual CPU usage
part). Reproductible all the time, because constant.
Using arch linux with KDE unstable repos, and up to date.
Not sure if this is the right product, feel free to move it to the right place.
Package versions:
-linux-ck 4.15.6-1
-kwayland 5.43.0.1
-kwayland integration 5.12.2-1
-plasma-wayland-session 5.12.2-1
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