Although I disabled animations in “System Settings/Appearance/Application Style/Widget Style/Configure…/Animations/Enable animations”, some widgets are still animated: - opening/closing combo boxes, - appearing/disappearing tool tips, and - opening/closing menus. There may be other affected widgets I missed. Also, enabling the animation and changing the “Animation duration” has no effect on these widgets. SOFTWARE/OS VERSIONS Operating System: Arch Linux KDE Plasma Version: 5.15.2 KDE Frameworks Version: 5.55.0 Qt Version: 5.12.1 Kernel Version: 4.20.12-arch1-1-ARCH OS Type: 64-bit Arch Linux package versions: breeze 5.15.2-1 linux 4.20.12.arch1-1 plasma-desktop 5.15.2-1 qt5-base 5.12.1-2
These are separate X11 windows (or Wayland surfaces). Please also disable window manager animations.
I see. I had to disable “System Settings/Workspace/Desktop Behavior/Desktop Effects/Fading Popups”. This effect was probably introduced or factored out of another effect in the last major KDE release because I did not have this behavior before. In my opinion – at least in case of the combo box – this is not the intuitive place to look at if one does not know the technical background. Maybe it helps to add a note in the configuration dialog of the widget style. Another solution might be to move the “Desktop Effects” configuration into the Appearance category.
Re-tested and these issues are all fixed now with the shiny central animation duration control in System Settings