xdpyinfo is a utility for displaying information about an X server.

It is used to examine the capabilities of a server, the predefined
values for various parameters used in communicating between clients
and the server, and the different types of screens, visuals, and X11
protocol extensions that are available.

All questions regarding this software should be directed at the
Xorg mailing list:

  https://lists.x.org/mailman/listinfo/xorg

The primary development code repository can be found at:

  https://gitlab.freedesktop.org/xorg/app/xdpyinfo

Please submit bug reports and requests to merge patches there.

For patch submission instructions, see:

  https://www.x.org/wiki/Development/Documentation/SubmittingPatches