Created attachment 172909 [details] Reproduction screencast. SUMMARY ------- Unable to modify display brightness, until rebooted. STEPS TO REPRODUCE ------------------ Attempt to modify the brightness via the relevant `plasmashell` plasmoid. OBSERVED RESULT --------------- I wasn't able to apply a new brightness value - it reverted each time I attempted to apply it - and the current brightness was incorrectly reported as 0. EXPECTED RESULT --------------- I should have been able to modify the brightness. SOFTWARE/OS VERSIONS -------------------- > Operating System: Fedora Linux 40 > KDE Plasma Version: 6.1.4 > KDE Frameworks Version: 6.5.0 > Qt Version: 6.7.2 > Kernel Version: 6.10.6-200.fc40.x86_64 (64-bit) > Graphics Platform: Wayland > Processors: 12 × AMD Ryzen 5 7600X 6-Core Processor > Memory: 30.5 GiB of RAM > Graphics Processor: AMD Radeon RX 5700 > Manufacturer: ASRock > Product Name: X670E Taichi ADDITIONAL INFORMATION ---------------------- Set as minor because a reboot fixed it.
(In reply to Roke Julian Lockhart Beedell from comment #0) I'm going to set this as WORKSFORME because since I rebooted, it hasn't recurred, and thus I can't think of any useful diagnostics I can provide.