Bug 472774

Summary:	High resolution scrolling broken under Plasma-Wayland
Product:	[Plasma] kwin	Reporter:	kde
Component:	general	Assignee:	KWin default assignee <kwin-bugs-null>
Status:	RESOLVED FIXED
Severity:	normal	CC:	aleixpol, nicolas.fella, xaver.hugl
Priority:	NOR
Version First Reported In:	5.27.6
Target Milestone:	---
Platform:	Other
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:

Description kde 2023-07-29 16:13:09 UTC

SUMMARY
High resolution scrolling is broken when starting Plasma in Wayland mode.


STEPS TO REPRODUCE
1. have a mouse capable of high resolution scrolling (MX Master 3 in my case)
2. launch Plasma in Wayland mode

OBSERVED RESULT
mouse behaves like an oldschool mouse with a stepped scroll wheel

EXPECTED RESULT
mouse should scroll smoothly like under X11

SOFTWARE/OS VERSIONS
Operating System: openSUSE Tumbleweed 20230727
KDE Plasma Version: 5.27.6
KDE Frameworks Version: 5.108.0
Qt Version: 5.15.10
Kernel Version: 6.4.6-1-default (64-bit)
Graphics Platform: Wayland

Comment 1 Zamundaaa 2023-08-30 13:27:21 UTC

Applications need to support high resolution scrolling for it to be used, and Qt 5 has no support for it. This will be fixed as apps upgrade to Qt 6