https://bugs.kde.org/show_bug.cgi?id=475165
Bug ID: 475165
Summary: Firefox 118 w/ fractional scaling enabled: Context
menus and hints are misplaced or not rendered with the
correct size
Classification: Plasma
Product: kwin
Version: 5.27.8
Platform: Other
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: wayland-generic
Assignee: kwin-bugs-n...@kde.org
Reporter: pos...@posteo.eu
Target Milestone: ---
Created attachment 162046
--> https://bugs.kde.org/attachment.cgi?id=162046&action=edit
Screen recording
SUMMARY
Firefox 118 has a new feature to account for fractional scaling. While this
sharpens the text, right-click context menus or hints (on mouse hover) are
placed at a wrong position or not rendered with the correct size.
I am not sure if this is a kwin or a Firefox bug.
STEPS TO REPRODUCE
1. Firefox 118
2. about:config -> set widget.wayland.fractional-scale.enabled to true and
restart the FF
3. Go to https://invent.kde.org/plasma/systemsettings/-/issues/15#note_775149
Hover the mouse over the reactions
4. Right click somewhere in Firefox to open the context menu: Often it looks
right, but in some cases the issue appears, so try it several times.
OBSERVED RESULT
Please see the screen recording
EXPECTED RESULT
Context menus and hints are always opened at the cursor position and have a
useful size, just as when having fractional scaling disabled in Firefox's
advanced config.
SOFTWARE/OS VERSIONS
Operating System: Fedora Linux 38
KDE Plasma Version: 5.27.8
KDE Frameworks Version: 5.109.0
Qt Version: 5.15.10
Kernel Version: 6.5.5-200.fc38.x86_64 (64-bit)
Graphics Platform: Wayland
Firefox 118
ADDITIONAL INFORMATION
Scaling: 1.25
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