On KDE, scroll wheel sometimes stops working until I switch windows
Steps to reproduce
- In KDE Xorg, open any GTK3 app (Firefox or Sublime Text or Sublime Merge or Gedit, not VS Code).
- Mouse-click on a different app in the "KDE taskbar". This will either open or focus a window from that app.
- Clicking on a different window or pressing Alt+Tab to switch focus will not trigger this bug.
- Close the new app by pressing X button, or by pressing Alt+F4.
Current behavior
The GTK3 app will be focused, but mouse scroll events will not work. Switching windows fixes the issue.
Expected outcome
Mouse scroll events work.
Version information
GTK 3.24.20, on KDE.
Operating System: openSUSE Tumbleweed 20200622
KDE Plasma Version: 5.19.1
KDE Frameworks Version: 5.71.0
Qt Version: 5.15.0
Kernel Version: 5.7.2-1-default
OS Type: 64-bit
Processors: 4 × Intel® Core™ i5-6200U CPU @ 2.30GHz
Memory: 7.6 GiB of RAM
Graphics Processor: Mesa DRI Intel® HD Graphics 520