https://bugzilla.kernel.org/show_bug.cgi?id=195321
--- Comment #1 from Jimi (JimiJames.Bove@gmail.com) --- OK, this is getting really weird. Despite working over quite a few monitor disconnections for the past few hours, the --paint-on-overlay option is suddenly no longer fixing it. I *have* to turn the display on and off in XFCE's settings now.