https://bugs.kde.org/show_bug.cgi?id=400665
Bug ID: 400665
Summary: Mouse hover effects not working with QML-applications
using QtQuickControls 2 Styles
Product: kwin
Version: 5.14.2
Platform: Manjaro
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: effects-present-windows
Assignee: kwin-bugs-n...@kde.org
Reporter: lay3rlo...@gmail.com
Target Milestone: ---
Created attachment 116084
--> https://bugs.kde.org/attachment.cgi?id=116084&action=edit
Super simple test program to reproduce the issue
SUMMARY
When running QML-based applications that utilize QtQuickControls 2 with styles
(e.g. material) mouse hover effects don't work at all for any controls. For
example hovering over a button or text input field doesn't highlight them.
STEPS TO REPRODUCE
1. Build the attached test project. (I am using QtCreator with qmake for
building and running)
2. Run it.
3. Hover your mouse over the button on the center of the application.
OBSERVED RESULT
Nothing happens.
EXPECTED RESULT
The button highlights to inform the user that the mouse is now on top of the
button.
SOFTWARE VERSIONS
(available in About System)
KDE Plasma Version: 5.14.2
KDE Frameworks Version: 5.51.0
Qt Version: 5.11.2
ADDITIONAL INFORMATION
The mouse hover effects are part of the QtQuickControls 2 Style. For example
the material style and universal style provide these hover effects. This issue
does not happen on RHEL using gnome-classic or Arch using i3. This issue also
happens on KDE Neon. On Manjaro XFCE I experienced the same issue but it was
due to Manjaro setting an environment variable QT_QPA_PLATFORMTHEME="qt5ct".
Removing that solved the issue but KDE version of Manjaro doesn't have that
environment variable set and the issue is present.
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