The Remote Desktop Protocol
From Wikipedia:
Remote Desktop Protocol (RDP) is a proprietary protocol developed by Microsoft Corporation which provides a user with a graphical interface to connect to another computer over a network connection. The user employs RDP client software for this purpose, while the other computer must run RDP server software.
[…]
Microsoft currently refers to their official RDP client software as Remote Desktop Connection, formerly “Terminal Services Client”.
The protocol is an extension of the ITU-T T.128 application sharing protocol. […]
To use the Remote Desktop Protocol (RDP) to access the Raspberry Pi computer, the server software xRDP must be installed on it:
sudo apt install xrdp
Of course on the client machine (that one that displays the Raspi’s desktop), a corresponding client software is required
Configuration Files
/etc/xrdp/xrdp.ini– The main configuration file; usually no changes required./etc/xrdp/xrdp_keyboard.ini– The keyboard configuration.
Black Screen after Login via xRDP
Usually this happens when the same user as for the RDP session is already logged in locally, and both are using the same window manager. In newer versions of the Raspberry Pi OS, Wayland is used instead of X11 – the latter is still used by xRDP – and as both are using different window manager implementations. Therefore it should work in most cases.