xlogo

Display X logo

$ xlogo

$ xlogo -render

$ xlogo -shape

$ xlogo -fg [blue] -bg [white]

$ xlogo -geometry [200x200+100+100]

$ xlogo -display [hostname:0]

xlogo [options]

xlogo displays the X Window System logo in a window. It's a minimal X11 application used primarily for testing X server connectivity and verifying that display forwarding is working.
The program serves as a "hello world" equivalent for X11, making it useful for quickly testing if X is running and accessible. If xlogo fails to open, it indicates problems with the X server, DISPLAY variable, or network configuration.
With -render, the logo uses anti-aliased edges for smoother appearance. The -shape option creates a window that matches the logo outline rather than a rectangular window.

-render

Use RENDER extension for anti-aliased edges.

Use non-rectangular window shape.

Foreground color (logo color).

Background color.

Window size and position.

X display to use.

Minimal functionality by design. Requires running X server and correct DISPLAY setting. Legacy application; modern testing might use other methods.

xlogo has been part of the X Window System since its early days, providing a simple visual test of X server functionality. Despite its simplicity, it remains useful for basic X11 connectivity testing and demonstrating X11 concepts.

xeyes(1), xclock(1), xterm(1), xdpyinfo(1)