I came across this issue when using VirtualBox. I know you may be thinking that this is something simple. All you need to do is press the HOST key and 'F' for full screen, but this is a completely different way without losing the windowed screen. Personally, I prefer to leave it with the window so I have access to the minimize, restore and close buttons in the top right corner. It also leaves my menu at the top left, while the hardware information is at the bottom right. Somehow, I just... https://www.linux.org/threads/custo...-with-xrandr-virtualbox-friendly-guide.57437/