To adjust the screen brightness, look for an icon that corresponds to brightness–often a sun logo or something similar–and press the keys. Often, these keys are part of the row of F-keys–that’s F1 through F12–that appear above the number row on your keyboard. On most laptop keyboards, you’ll find shortcut keys that allow you to quickly increase and decrease your brightness. How to Adjust Brightness Manually on a Laptop or Tablet If this does not help, please check these screenshots. Is your brightness dim or is it too bright?įor starters, please check this link out to change the brightness on your computer. I take it as a privilege to share this platform with you.įor better clarity and to assist you better I would require more information regarding this. We greatly appreciate you for doing business with HP. You are a valued HP customer and it is paramount to assist you here. :)It is always a privilege to work with technical specialists like you. I will be delighted to assist you with this.įabulous diagnosis and superb analysis of the issue before posting. Through this simple tool, that comes already installed on your Ubuntu, you can adjust the brightness of your screen right from your command line.Hi Day! Thanks for taking an interest in the HP Support Forums! I read your post about changing the brightness on your computer. Advertisement $ xrandr -output LVDS-1 -brightness 0.75 I used the following command to set my brightness level to 0.75 which is about right for using the laptop at night. The brightness level should be set between 0.5 to 1 for better visibility. Now that you know your monitor’s name, you can set the new brightness level through the following command syntax: $ xrandr -output -brightness I am using an LCD laptop and the output suggests the name of my monitor as LVDS-1 Step 3: Change the brightness level Run the following command in your Terminal to fetch your monitor’s name: $ xrandr | grep " connected" | cut -f1 -d " " This utility is installed, by default, on a Ubuntu 18.04 system. The Xrandr tool (an app component in Xorg) is a command-line interface for the RandR extension and can be used to set outputs for a screen dynamically, without any specific setting in nf. In this step, we will fetch the name of the monitor currently connected to your Ubuntu system through the Xrandr tool.
Open the Terminal application either by using the Ctrl+Alt+T shortcut or by accessing it through the application launcher search as follows: Please follow these steps to adjust the screen brightness on a Ubuntu system: Step 1: Open the Terminal We have tested the commands and procedures mentioned in this article on an Ubuntu 20.04 LTS and also on the current Ubuntu 22.04 system. This includes getting the name of your monitor and adjusting the brightness level, both using the Xrandr utility. In this article, we will describe how you can adjust the brightness of your monitor using the Ubuntu command line. One or two commands will help you adjust the brightness to your liking. Through some research, I found out that the process with Xrandr Utility is pretty simple. Although there are ways to do this through the user interface, I mainly work at the command line and looked for a way to control the screen brightness in the terminal itself. If you use your Ubuntu system at different times of the day, you may also need to change the brightness of your screen over and over again to make it easier on your eyes.