https://bugs.kde.org/show_bug.cgi?id=381471
--- Comment #2 from gr...@sub.red --- Thanks for your hint. When the effect is enabled, the entire screen is flickering in colours, so redrawn every frame. Not a single window was open during this test. I tried disabling V-Sync, which only introduced tearing into the flickering. Disabling compositing hides the effect but doesn't reduce the GPU load -- You are receiving this mail because: You are watching all bug changes.