Objective

The objective is to install KDE plasma desktop as an alternative desktop environment. See also our article: The 8 Best Ubuntu Desktop Environments (18.04 Bionic Beaver Linux) for more desktop environment choices.

Operating System and Software Versions

  • Operating System: - Ubuntu 18.04 Bionic Beaver

Requirements

Administrative root/sudo permissions.

Difficulty

EASY

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

Instructions

Prerequisites

We will be using the tasksel command to install KDE plasma desktop. In case the tasksel command is not available on your system you can install it by:
$ sudo apt install tasksel

Install KDE plasma Desktop

Execute the following linux command to begin installation of the KDE plasma desktop:
$ sudo tasksel install kubuntu-desktop
installation of KDE plasma desktop packages


Packages download.

display manager information
select display manager sddm


Select a display manager. SDDM is the default display manager for the KDE plasma desktop. In case you have not been offered to make the selection, then after the installation is finished execute:
$ sudo apt install sddm
If the sddm is already installed than try to reconfigure it in order to make sddm the default display manager for your system:
$ sudo dpkg-reconfigure sddm


wait for installation of KDE plasma desktop packages


restart system


Once the installation is finished restart your system.

login to KDE plasma desktop desktop


Login with your existing credentials.

KDE plasma desktop ready
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