SUMMARY In Settings > Workspace Behavior > Desktop Effects, changing between magnifiers (in the Accessibility section) isn't effected by clicking "Apply". The change is effective after restarting the compositor in Wayland (Settings > Display and Monitor > Compositor) by changing some value, clicking "Apply" and then changing to the original value and clicking "Apply" again or by logging out and logging back in. In X11, just toggle the compositor off and then back on. STEPS TO REPRODUCE 1. Open Settings > Workspace Behavior > Desktop Effects > Accessibility and change from the default "Zoom" to either "Looking Glass" or "Magnifier". Click "Apply". The new choice isn't effective. 2a. For Wayland, move to Settings > Display and Monitor > Compositor. Change some value, click "Apply" and then change back to the original value and click "Apply" again. 2b. For X11, toggle compositing off and on with Alt+Shift+F12. 3. The choice of Looking Glass or Magnifier is now effective. EXPECTED RESULT Selecting a desktop effect and clicking "Apply" should work. SOFTWARE/OS VERSIONS Linux/KDE Plasma: Kubuntu 21.04 with the beta ppa (available in About System) KDE Plasma Version: 5.22.90 KDE Frameworks Version: 5.86.0 Qt Version: 5.15.2 ADDITIONAL INFORMATION https://www.reddit.com/r/kde/comments/q3703h/plasma_52290_is_it_possible_to_toggle_compositing/
Confirming the same on Plasma 5.22.5, on KDE Neon Toggling com positing off and back on allows the newly selected magnifier to work. SOFTWARE/OS VERSIONS Linux/KDE Plasma: KDE Neon KDE Plasma Version: 5.22.5 KDE Frameworks Version: 5.86.0 Qt Version: 5.15.3 Kernel 5.11.0-37 X11, using AMD RX480
Are you able to reproduce this issue in Plasma 5.25 or later?
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This bug has been in NEEDSINFO status with no change for at least 30 days. The bug is now closed as RESOLVED > WORKSFORME due to lack of needed information. For more information about our bug triaging procedures please read the wiki located here: https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging Thank you for helping us make KDE software even better for everyone!