Screen brightness widget not displaying one of two heads attached

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1

Hi, I have two heads connected to the machine. The brightness widget for some time will no longer display the left head of machine when it is opened.

:~> kinfo
Operating System: openSUSE Tumbleweed 20250825
KDE Plasma Version: 6.4.4
KDE Frameworks Version: 6.17.0
Qt Version: 6.9.1
Kernel Version: 6.12.43-1-longterm (64-bit)
Graphics Platform: Wayland
Processors: 4 × Intel® Core™ i5-6600K CPU @ 3.50GHz
Memory: 16 GiB of RAM (15.6 GiB usable)
Graphics Processor: AMD Radeon RX 640

Screenshot_20250826_214913
Screenshot_20250826_2149132295×1014 120 KB

As you may see the Nec Corporation monitor is not displayed. What are your thoughts on this situation?

Thanks

2

I’m having the same issue. The issue specifically occurred with an LG monitor.
Power cycling resolved the issue, but disabling and then enabling the display in the settings window did not.

Operating System: Arch Linux
KDE Plasma Version: 6.4.5
KDE Frameworks Version: 6.19.0
Qt Version: 6.10.0
Kernel Version: 6.17.3-arch2-1 (64-bit)
Graphics Platform: Wayland
Processors: 32 × Intel® Core™ i9-14900KF
Memory: 32 GiB of RAM (31.2 GiB usable)
Graphics Processor: NVIDIA GeForce RTX 4060 Ti