Archives For brightness control

brightness controller

Brightness Controller is a simple open-source utility to control brightness, RGB, and color temperature of your displays in Linux.

It allows you to change the brightness to a better degree of control, ranging from 1% to 100%! It should be mentioned that it changes the present brightness value set via hardware control of your monitor. For example, if you set your Monitor’s brightness to 50% using hardware buttons, then that 50% will be the 100% value in Brightness controller.

Brightness Controller is developed with Python2 and Pyside. It supports an arbitrary number of displays!

brightness controller

Install Brightness Controller via PPA:

For all current Ubuntu releases, including Ubuntu 14.04, Ubuntu 16.04, Ubuntu 16.10, Ubuntu 17.04, and the next Ubuntu 17.10, the utility is available via the PPA repository.

1. Open terminal via Ctrl+Alt+T. Run command to add the PPA:

sudo add-apt-repository ppa:apandada1/brightness-controller

Type in your password (no visual feedback) when it asks and hit Enter.

2. Then check updates and install the utility:

sudo apt-get update

sudo apt-get install brightness-controller

For those who don’t want to add PPA, grab the .deb package from HERE.


To remove the utility, simply run command:

sudo apt-get remove brightness-controller && sudo apt-get autoremove

To remove the PPA, go to system settings -> Software & Updates -> Other Software tab.

How to Install Brightness Indicator in Ubuntu 14.10

Last updated: November 17, 2014

Indicator Brightness

The Fn brightness control doesn’t work on your Ubuntu Laptop? Try indicator-brightness, an applet on panel to set your screen brightness, which also supports keyboard shortcuts.

The indicator-brightness is inspired by the original Gnome brightness applet, it allows the Unity users to set screen brightness by using the indicator menu or the scroll wheel of your mouse over the indicator icon. With it, you can assign custom keyboard shortcuts to control brightness with your keyboard.


Install Brightness Indicator Ubuntu 14.10:

It’s easy to install the applet though the developer doesn’t update the package for Ubuntu 14.10. And it works good on my laptop.

To install it, click the link below to go to the developer’s PPA package repository and download the .deb installer for Ubuntu 14.04 Trusty.

Download indicator-brightness

Select download the “indicator-brightness_0.4~bzr11~ubuntu14.04.1_all.deb”. Once downloaded, double-click the package to open it with Ubuntu Software Center and finally click the “install” button.

Once installed, start the applet from the Unity Dash and enjoy!

To add custom shortcuts to control screen brightness:

Open System Settings and navigate to “Keyboard -> Shortcuts tab -> Custom Shortcuts”.

Click the plus sign to add two new shortcuts with:

  • name: Brightness up

    /opt/ --up
  • name: Brightness down

    /opt/ --down

Assign shortcut keys to them and done!

Add Brightness Control Shortcuts

If the brightness controls don’t works in your system or you’re not satisfied with the default Fn function key, here’s an app indicator allows to change screen brightness in all the possible brightness values. The applet works in Ubuntu and its derivatives, such as Linux Mint and Elementary OS Luna.

brightness control indicator

It’s useful for me because the Fn+Arrow key in my laptop only change the brightness in 4 levels (zero, one third, two-thirds, full).


  • Clicking the icon shows you all the possible brightness values, to a maximum of 15 steps.
  • The current value is indicated with a dot.
  • Clicking a menu item sets the brightness to the desired value.
  • Scroll wheel event is enabled on the icon. Scrolling up means higher brightness, scrolling down lower.
  • Control screen brightness with custom keyboard shortcuts.
  • Install Brightness Indicator:

    Press Ctrl+Alt+T on your keyboard to open terminal. When it opens, run below commands one by one to install the indicator from PPA:

    sudo add-apt-repository ppa:indicator-brightness/ppa
    sudo apt-get update
    sudo apt-get install indicator-brightness

    Or you can download the .deb package and double-click to install it from

    Once installed, open it from the app menu. Add these commands to your custom keyboard shortcuts to control brightness with your keyboard. You need Elementary Tweak to add a custom shortcut key.

    /opt/ --up


    /opt/ --down

    brightness control shortcut key