lxqt-backlight_backend command not found

Introduction

When you run more command in linux terminal / console, you get the following error message

lxqt-backlight_backend: command not found

or when using sudo you get the following error message

sudo: lxqt-backlight_backend: command not found

Solutions to lxqt-backlight_backend: command not found

How To Fix lxqt-backlight_backend: command not found in Ubuntu / Debian / Kali Linux / Raspbian

In Ubuntu lxqt-backlight_backend is provided by liblxqt0 package.

liblxqt0 is:

LXQt is an advanced, easy-to-use, and fast desktop environment based on Qt technologies. It has been tailored for users who value simplicity, speed, and an intuitive interface. Unlike most desktop environments, LXQt also works fine with less powerful machines.

This package contains the shared libraries needed by the LXQt desktop environment.

To fix this problem, we can install more using the command below.

sudo apt-get -y install liblxqt0

This command might take some time to finish depending on your machine internet connection.

You can also use apt command to install liblxqt0.

sudo apt -y install liblxqt0

Or if you have aptitude installed you can use the following command.

sudo aptitude install liblxqt0

Summary

In this tutorial we learn how to fix lxqt-backlight_backend command not found error in Ubuntu / Debian / Kali Linux or Raspbian distribution.