https://bugs.kde.org/show_bug.cgi?id=495218
--- Comment #1 from Chris king <ch...@tangled.net.au> --- After exiting YouTube fullscreen, if I go into the Display Configuration and disable the affected monitor, apply the changes, then re-enabling the monitor again; then I can avoid rebooting the computer. Rebooting will also remediate the display issue. Turning the monitors off/on or removing the HDMI cables has no affect -- You are receiving this mail because: You are watching all bug changes.