brightd command not found

Introduction

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

brightd: command not found

or when using sudo you get the following error message

sudo: brightd: command not found

Solutions to brightd: command not found

How To Fix brightd: command not found in Ubuntu / Debian / Kali Linux / Raspbian

In Ubuntu brightd is provided by brightd package.

brightd is:

The idea is taken from the way Macs behave: If a user is inactive for a certain time, it automatically darkens the screen. It is designed for IBM/Lenovo Thinkpads, but works with every display which is controllable via /sys/class/backlight/.

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

sudo apt-get -y install brightd

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

You can also use apt command to install brightd.

sudo apt -y install brightd

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

sudo aptitude install brightd

Summary

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