SUMMARY On a multi-monitor setup, the screenlocker persists visually on the secondary monitor when unlocked. Hilariously, if you click on it, it goes away, but then comes back when you click back on the primary monitor. This does not seem to affect functionality as you can drag windows over there and it will display fine. It also seems to go away after about a minute. STEPS TO REPRODUCE 1. Have two monitors, and lock the screen. 2. unlock. 3. OBSERVED RESULT See the screen locker on the secondary monitor after unlocked. EXPECTED RESULT No screen locker. SOFTWARE/OS VERSIONS Windows: macOS: Linux/KDE Plasma: opensuse tumbleweed (available in About System) KDE Plasma Version: 5.23.0 KDE Frameworks Version: 5.87.0 Qt Version: 5.15.2 ADDITIONAL INFORMATION My system is running nvidia 470.74. Also, this is on x11. Have not looked at wayland.
I just noticed it seems to only happen when the computer is asleep (wrong word? Black screen that wakes to screen locker).
*** This bug has been marked as a duplicate of bug 443787 ***