wayland-info

wayland-info [-d display] [-i interface]...

wayland-info connects to a running Wayland compositor and prints the global objects it exposes through the registry, together with their interface name and version. For well-known interfaces it also decodes and prints extra detail, such as the modes, geometry, scale, and transform of each wl_output, the formats supported by wl_shm, and the available seats and their capabilities.It is the Wayland equivalent of tools like xrandr or glxinfo for X11, and is useful for checking which protocols and protocol versions a compositor supports, debugging multi-monitor setups, and confirming that a session is actually running under Wayland. The tool is part of the wayland-utils package and supersedes the older weston-info.

-d display, --display display

Connect to the named Wayland display instead of the one in the WAYLAND_DISPLAY environment variable.

Print information only for globals matching the given interface name. May be repeated to select several interfaces.

Show usage information.

The tool must be run inside a Wayland session (or with WAYLAND_DISPLAY/-d pointing at a reachable compositor socket); it cannot report on an X11 session. The exact set of decoded interfaces depends on the installed version of wayland-utils.

swaymsg(1), weston(1), drm_info(1), glxinfo(1), xrandr(1)

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