Install libx11-6 by entering the following commands in the terminal:
sudo apt update sudo apt install libx11-6
Description:
X11 client-side library
This package provides a client interface to the X Window System, otherwise known as 'Xlib'. It provides a complete API for the basic functions of the window system. . More information about X.Org can be found at:
Version: 2:1.6.4-3
Section: libs