How To Install brightd on Ubuntu 20.04

In this tutorial we learn how to install brightd on Ubuntu 20.04. brightd is daemon which regulates brightness of LCDs dynamically

Introduction

In this tutorial we learn how to install brightd on Ubuntu 20.04.

What is brightd

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/.

There are three methods to install brightd on Ubuntu 20.04. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.

Install brightd Using apt-get

Update apt database with apt-get using the following command.

sudo apt-get update

After updating apt database, We can install brightd using apt-get by running the following command:

sudo apt-get -y install brightd

Install brightd Using apt

Update apt database with apt using the following command.

sudo apt update

After updating apt database, We can install brightd using apt by running the following command:

sudo apt -y install brightd

Install brightd Using aptitude

If you want to follow this method, you might need to install aptitude first since aptitude is usually not installed by default on Ubuntu. Update apt database with aptitude using the following command.

sudo aptitude update

After updating apt database, We can install brightd using aptitude by running the following command:

sudo aptitude -y install brightd

How To Uninstall brightd on Ubuntu 20.04

To uninstall only the brightd package we can use the following command:

sudo apt-get remove brightd

Uninstall brightd And Its Dependencies

To uninstall brightd and its dependencies that are no longer needed by Ubuntu 20.04, we can use the command below:

sudo apt-get -y autoremove brightd

Remove brightd Configurations and Data

To remove brightd configuration and data from Ubuntu 20.04 we can use the following command:

sudo apt-get -y purge brightd

Remove brightd configuration, data, and all of its dependencies

We can use the following command to remove brightd configurations, data and all of its dependencies, we can use the following command:

sudo apt-get -y autoremove --purge brightd

References

Summary

In this tutorial we learn how to install brightd package on Ubuntu 20.04 using different package management tools: apt, apt-get and aptitude.