https://bugs.kde.org/show_bug.cgi?id=462725
--- Comment #29 from Aspidov Sergei <aspido...@gmail.com> --- This problem only occurs on 1. Laptop 2. On which an external display is connected 3. In KDE only x11 4. With intel + nvidia hybrid GPU\driver installed 5. kscreen and libkscreen =>5.25.90 6. Primary and secondary monitor refresh rates do not match. Fix way: 1. Go to system settings \display and monitor \ set same Refresh rate to all monitor 2. Downgrade kscreen and libkscreen to 5.25.5<= and ignore update 3. install optimus-manager and switch gpu to nvidia \ intel only 4. When your log on in plasma, try to upload new desktop wallper, after refresh all to be normal ( after logout, need do it again ) YES WHY!!!! -- You are receiving this mail because: You are watching all bug changes.