Package xscope

X Window Protocol Viewer

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

xscope sits in-between an X11 client and an X11 server and prints the contents
of each request, reply, error, or event that is communicated between them.
This information can be useful in debugging and performance tuning of X11
servers and clients.

Version: 1.4.3

General Commands

xscope X Window Protocol Viewer