Many screen-sharing tools still struggle with Wayland. If you experience a black screen, try switching to an X11 session at the login screen.
The search for a native "spacedesk for Linux" has been a long journey for many power users. While a direct official installer for Linux distributions isn't available in the same way it is for Windows, the landscape has changed significantly in 2024 and 2025. Here is the complete guide to getting spacedesk-like functionality on Linux using the latest methods. The Current State of Spacedesk on Linux
Deskreen is an open-source application that turns any device with a web browser into a second monitor for your Linux computer. spacedesk para linux new
Available as an AppImage, making it compatible with Ubuntu, Fedora, Arch, and more.
You can share the entire screen or just a specific application window. Many screen-sharing tools still struggle with Wayland
Virt-Screen is a GUI for the VNC-based method of creating secondary displays.
It mirrors your screen and sends mouse/stylus input back to Linux. While a direct official installer for Linux distributions
It creates a virtual display output in your system settings.
If you have a Windows PC and want to use your Linux laptop or desktop as a second monitor, you don't need a complex install.