https://bugs.kde.org/show_bug.cgi?id=503198
Bug ID: 503198
Summary: Zoom problems when "Mouse Pointer" set to "Keep"
Classification: Plasma
Product: kwin
Version: 6.3.4
Platform: Gentoo Packages
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: effects-various
Assignee: kwin-bugs-n...@kde.org
Reporter: i...@semyonov.xyz
Target Milestone: ---
Created attachment 180543
--> https://bugs.kde.org/attachment.cgi?id=180543&action=edit
pointer shows as inside the dropdown area, but dropdown is not highlighted
SUMMARY
Mouse pointer is not scaled properly and not at expected position when "Mouse
Pointer" is set to "Keep"
As I zoom in, the mouse absolute size (the width of it on my screen) gets
smaller. It also moves to the left of where I expect it to be and where the
actual click location is.
I imagine this may be related: I am using a display with resolution 3440x1440
(ultrawide 43:18) aspect ratio).
I am also running 130% scaling.
My guess is that the ultrawide aspect ratio is causing the pointer drift and
the scaling is causing the pointer to get smaller as I zoom in.
"Scaled" works well, although the mouse pointer is a constant size, relative to
the content. I think calling this "scaled" is confusing. As a user, it seems
like this should be called something like "Same size as content". I am
obviously bad at naming things.
I think I understand why it's called scaled, as the pointer is being scaled up
as we zoom in.
STEPS TO REPRODUCE
1. Configure the "Zoom" desktop effect. Set "Mouse Pointer" to "Keep" and
"Mouse Tracking" to either "Centered" or "Proportional".
2. Zoom in, with either Meta + = or Meta + Ctrl + Scroll Up
3. Observe location of pointer and location of click location by mousing over
screen elements that change with mouseover.
OBSERVED RESULT
EXPECTED RESULT
Mouse cursor stays the same absolute size on screen as I zoom in
Mouse pointer stays at click location
SOFTWARE/OS VERSIONS
Operating System: Gentoo Linux 2.17
KDE Plasma Version: 6.3.4
KDE Frameworks Version: 6.10.0
Qt Version: 6.8.2
Kernel Version: 6.12.21-gentoo (64-bit)
Graphics Platform: Wayland
Processors: 24 × AMD Ryzen 9 3900X 12-Core Processor
Memory: 62.7 GiB of RAM
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