Hello folks, I've some trouble with multi-screen setups changing while logged in - ie due to: - a data projector is connected, disconnected or reconnected - a docking station is docked / un-docked
In all situations: - xrander lists all screens correctly - System Settings -> Display Monitoring shows the connected devices correctly. - Suspending / uns-uspending has no effect - If switching to a text-console (CTRL+Alt+Fn) the console is shown on all screens correctly. When switching back, the desktop is show for a fraction of a second (buffer?) Problems occurring: - New screens remain black (ie: Plugged in data projector remains black) - Old screens are not detached (ie Desktop occupies non-existing screens, menu bar is missing). - All screens are black, the mouse pointer is shown, only. Misc: - Restarting the xserver helps usually - the current layout is applied correctly - Deleting .local/share/applications/kscreen and the old .kde-kscreen-directory has no effect - Jessie was ok - all problems are regressions after updating to Stretch. Do you have any idea how to fix that ? For the moment, I need to restart my session (Log-In / Log-Out), when giving a talk or the connection to the data projector is lost for a second during a talk. It is really annoying. :-( Thanks in advance, Jan -- For those of you without hope, we have rooms with color TV, cable and air conditioning

