I’ve set up Ubuntu Server with the KDE desktop and xrdp. Everything seems to be working fine, the only issue I have with it is when I lock the screen the display becomes completely black until I hit ctrl+alt+del and then the usual login screen appears. As this server is supposed to be used by our students, I would now have to tell everyone that they need this key combination. On Windows the only way to do this is using ctrl+alt+end and god knows what combination it is on macbooks that don’t have a del key. I would much rather have the login screen be visible at all times without needing to press anything.