SUMMARY On the touchpad settings page, the "Apply" button becomes disabled when the window state changed (e.g, maximize/restore). It looks like that the changes are reset, but UI of the page still displays these changes. STEPS TO REPRODUCE 1. Open Touchpad KCM 2. Make some changes 3. Maximize/restore KCM window OBSERVED RESULT The "Apply" button becomes disabled EXPECTED RESULT The "Apply" button remains enabled SOFTWARE/OS VERSIONS Linux/KDE Plasma: KDE Neon 5.18 KDE Plasma Version: 5.18.3 KDE Frameworks Version: 5.68.0 Qt Version: 5.14.1
https://streamable.com/dkf9x
Can reproduce.
Still reproducible on neon unstable. Operating System: KDE neon Unstable Edition KDE Plasma Version: 5.22.80 KDE Frameworks Version: 5.84.0 Qt Version: 5.15.3 Graphics Platform: Wayland
Looks like it's fixed for now. Operating System: KDE neon 5.24 KDE Plasma Version: 5.24.3 KDE Frameworks Version: 5.91.0 Qt Version: 5.15.3 Graphics Platform: X11
Yep, fixed for me too.
*** Bug 453612 has been marked as a duplicate of this bug. ***