https://bugs.kde.org/show_bug.cgi?id=457214
Bug ID: 457214
Summary: Xournal++: Highlighted cursor shows a flashing
rectangle and darkened highlighting using 200% scaling
Product: kwin
Version: 5.25.3
Platform: openSUSE RPMs
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: general
Assignee: kwin-bugs-n...@kde.org
Reporter: pos...@posteo.eu
Target Milestone: ---
Created attachment 150952
--> https://bugs.kde.org/attachment.cgi?id=150952&action=edit
Screen recording
STEPS TO REPRODUCE
1. Open Xournal++ 1.1.1+dev (b5da66c9)
2. File -> Preferences -> View: "Highlight cursor position", "Radius 30",
"Border width: 0", Cursor Icon for Pen "Small dot"
3. Draw something with your tablet or mouse in Xournal++ using the pen tool
OBSERVED RESULT
Using 200% scaling, the highlighting, which is a bright yellow by default,
becomes a dark yellow and every now and then a rectangle appears at the cursor
within the highlighting. I could not observe this when changing the scaling to
something lower, like 100% or 125%.
Please see the bad screen recording. I had to use my phone since OBS studio did
not record the highlighting.
I could not observe this using the nightly Appimage [1] on Fedora 36 with
Gnome 42 Wayland and 200% scaling, corresponding to the same git commit as my
local build on TW. So I guess it could be a kWin issue.
Though I could neither trigger it with the stable version of Xournal++ 1.1.1
from the openSUSE TW repo. So maybe a Xournal++ issue after all?
Hopefully someone can reproduce it.
[1] https://github.com/xournalpp/xournalpp/releases/tag/nightly
SOFTWARE/OS VERSIONS
Operating System: openSUSE Tumbleweed 20220725
KDE Plasma Version: 5.25.3
KDE Frameworks Version: 5.96.0
Qt Version: 5.15.5
Kernel Version: 5.18.11-1-default (64-bit)
Graphics Platform: Wayland
Graphics Processor: AMD Radeon RX 580 Series
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