Once you're connected to your server, you can check if X11 forwarding is ready for your Linux GUI apps by checking the DISPLAY environment variable with echo command executing echo $DISPLAY should show localhost:10.0 or similar instead of a blank line. But that option cannot be used with X410. There is also a -X option for X11 forwarding. Start the built-in SSH client with -Y option Hence, if you've executed setx command in a Windows Terminal tab, you need to start a new instance of Windows Terminal in order to access the DISPLAY environment variable (just opening another tab in Windows Terminal will *not* work). Please note that executing setx command prepares the environment variable for the future PowerShell or Windows Command Prompt sessions.

If you want to permanently add the DISPLAY environment variable to Windows, you can setx command: setx DISPLAY '127.0.0.1:0.0' If you want to check the DISPLAY environment variable, you can use echo command. For example, if the display number is changed to 1, you should set the DISPLAY environment variable to 127.0.0.1:1.0 (you can also omit the last. However, if you changed the display number via X410 command-line switches, you need to adjust the appending display number 127.0.0.1. If you're using X410 in its default display number setting which is set to 0, you can use the following examples as is. Set DISPLAY environment variable for Windows If you have an older version, you can try installing the latest version as described below: Enabling sound in WSL / Ubuntu - Let It Sing!.Installing Pantheon Desktop on Ubuntu (WSL).Running Xfce Desktop on Kali Linux (WSL).Customizing Xfce Desktop for Ubuntu (WSL).Creating a Windows Shortcut for Linux GUI Desktop (WSL).Get your sidekick for easily managing and launching Linux GUI apps (WSL).Setting the Theme for Linux GUI Apps (Windowed Apps Mode).Opening Firefox in WSL2 without Windows default title bar.

Opening a genuine Linux terminal emulator directly from File Explorer.

Running WSL2 Linux GUI apps like Windows apps in Ubuntu themes and colors.

Disabling WSLg (or using it together with X410).

Protecting X410 Public Access for WSL2 via Windows Defender Firewall.

Why you should uninstall screen savers and lockers in WSL.

Pin a Linux GUI app to Start or Taskbar.

Directly opening Linux GUI apps from Windows batch files.

Where should I add my DISPLAY environment variable in WSL?.

Windows terminal on linux