https://bugs.kde.org/show_bug.cgi?id=466340
--- Comment #5 from Jaap Geurts <jaap.geu...@fontys.nl> --- > If you enter edit mode and click on the "Manage Desktops and Panels" button > that live son the toolbars which drops down from the top of the screen, can > you use the window that appears to find your missing containment and move it > back to the correct screen? Today I had the black screen again(again on the second monitor) After opening "manage desktops and panels". The missing containment is there. Before doing or moving anything: It showed the containment as thumbnails in the correct position. The thumbnail showed as if the containment was visible normally on the second monitor however the monitor itself was black. After that I moved the containment to another position and then the monitor containment showed correctly. After reboots things are normal. Extra information: I'm using activities. I noticed that an activity was lost (the activity monitor also didn't show my second activity). Rebooting resolved it and it returned back to normal. Because I lost the activity all the window placements were on both activities after reboot. -- You are receiving this mail because: You are watching all bug changes.