https://bugs.kde.org/show_bug.cgi?id=438833
Bug ID: 438833 Summary: Everything jerks when changing laptop brightness and external screen is enabled Product: KScreen Version: 5.18.1 Platform: Other OS: Linux Status: REPORTED Severity: normal Priority: NOR Component: common Assignee: kscreen-bugs-n...@kde.org Reporter: k...@sedrubal.de Target Milestone: --- SUMMARY When I plug in an external monitor and change my laptop display brightness or lock my screen, everything (graphics, music, cursor) jerks for about one minute and then it works again. STEPS TO REPRODUCE 0. Use plasma desktop with X11 1. Plug in an external monitor 2. Extend screen to that monitor 3. Change display brightness or lock screen OBSERVED RESULT Everything jerks and CPU fan turns up for about one minute. Then everything works again. EXPECTED RESULT Graphics and music should stay fluent. SOFTWARE/OS VERSIONS Linux/KDE Plasma: Arch Linux KDE Plasma Version: 5.22.1 KDE Frameworks Version: 5.83.0 Qt Version: 5.15.2 ADDITIONAL INFORMATION Kernel 5.10.44 Graphics Platform: X11 in journal this lines are showing up multiple times in that time span: kscreen_backend_launcher[1033]: kscreen.xcb.helper: State (newValue, Deleted): 0 kscreen_backend_launcher[1033]: kscreen.xcb.helper: Property: BACKLIGHT kscreen_backend_launcher[1033]: kscreen.xcb.helper: Output: 67 kscreen_backend_launcher[1033]: kscreen.xcb.helper: RRNotify_OutputProperty (ignored) -- You are receiving this mail because: You are watching all bug changes.