SUMMARY This might sound like expected behavior, but Plasma now has hover effects enabled by default via the useHoverEffects QStyleHint in plasma-integration. QQC2 automatically enables hover effects when this style hint is enabled. STEPS TO REPRODUCE 1. run `QT_QUICK_CONTROLS_STYLE=Fusion kirigami2gallery` (any style that doesn't explicitly set hoverEnabled will have the same issue) 2. Go to the Button gallery page 3. Hover over all of the buttons OBSERVED RESULT None of the buttons show the hover effects they would normally have. EXPECTED RESULT Buttons should have hover effects if Qt.styleHints.useHoverEffects is true. SOFTWARE/OS VERSIONS Operating System: openSUSE Tumbleweed 20201201 KDE Plasma Version: 5.20.80 KDE Frameworks Version: 5.77.0 Qt Version: 5.15.2 Kernel Version: 5.9.8-2-default OS Type: 64-bit Processors: 4 × Intel® Core™ i7-6500U CPU @ 2.50GHz Memory: 7.6 GiB of RAM Graphics Processor: Mesa DRI Intel® HD Graphics 520
Created attachment 147022 [details] Potential Fix This would be the obvious fix. However, I am not sure what side effects this might have. At first glance it seems to fix the problem.