SUMMARY STEPS TO REPRODUCE 1. Plug a monitor with 200% scaling 2. Launch a GTK based application, for example Firefox 3. Notice the down sampled cursor OBSERVED RESULT The cursor in GTK window is blurry EXPECTED RESULT The cursor in GTK windows should be as sharp as in a QT window SOFTWARE/OS VERSIONS Linux/KDE Plasma: 5.12.1 kernel, 5.21.5 Plasma (available in About System) KDE Plasma Version: 5.21.5 KDE Frameworks Version: 5.81.0 Qt Version: 5.15.2 ADDITIONAL INFORMATION
Fixed in Plasma 5.22 already! :)