Hi, i have lubuntu 18.04 on an old system and after installing and configuring xrdp for remote desktop,i get a black screen with a flashing "_" when i boot. I think it has something to to with the display manager. Here are the instructions i followed https://askubuntu.com/questions/580415/how-to-remote-desktop-from-windows-to-lubuntu/580416#580416 Any ideas?