Bug 506777

SUMMARY
Apologies if this report is under the wrong project.

(Short version) It's possible for a multi-monitor configuration to enter a state where a monitor does not border the other monitors, trapping the arrow in or outside of it.

(Long version) Once in a while, and only when using this particular machine, my left monitor seems to report a lower maximum resolution than it actually supports, seemingly most often when the machine is coming back from sleep. This causes it to 'shrink' in my display configuration, but remain at the same origin point, forming gaps where it previously bordered the other screens. This traps the arrow either inside or outside of it. As this is incorrect behavior per the configuration panel, I believe it constitutes a bug if it is still able to reach this state by other (reasonable) means.

STEPS TO REPRODUCE
1. Use an HP Omen z4d33aa with an anker "powerexpand usb-c to displayport adapter" in a multi-monitor configuration
2. Wake the machine to the login screen
(Does not reproduce consistently)

OBSERVED RESULT
The monitor no longer borders monitors which were previously configured to the right of and underneath it.

EXPECTED RESULT
There should not be gaps in the monitor configuration

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Fedora Linux 41
KDE Plasma Version: 6.4.1
KDE Frameworks Version: 6.15.0
Qt Version: 6.8.3