How to disable Wayland and enable Xorg display server on Ubuntu 18.04 Bionic Beaver Linux

Objective

The default Ubuntu 18.04 Bionic Beaver installation comes with Wayland enabled. The objective is to disable Wayland and enable Xorg display server instead.

Operating System and Software Versions

• Operating System: – Ubuntu 18.04 Bionic Beaver
• Software: – GDM3

Requirements

Privileged access to is required to perform this configuration.

Conventions

• # – requires given linux commands to be executed with root privileges either directly as a root user or by use of sudo command
• $ – requires given linux commands to be executed as a regular non-privileged user

Other Versions of this Tutorial

Ubuntu 20.04 (Focal Fossa)

Instructions

Configure GDM3

As a privileged administrator user use your text editor to perform the following changes of the GDM3 custom configuration file /etc/gdm3/custom.conf.
FROM:

#WaylandEnable=false

TO:

WaylandEnable=false

By uncommenting the above line your system will use the Xorg display manager instead of Wayland next time it boots.

Reboot

Reboot your system to apply the changes.