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Tech News Today
Home»Monitors»How to Adjust Monitor’s Brightness

How to Adjust Monitor’s Brightness

Abhishek SilwalBy Abhishek SilwalNovember 5, 2022
adjust monitor brightness 1

People need to constantly adjust the brightness of their screens or monitors depending on the ambient light or to save power.

When you are in a bright room or place, you won’t be able to see the display properly if the brightness is too low. Similarly, if it’s dark, the screen may appear too bright. It’s also a good practice to lower the laptop screen’s brightness to save energy on the battery.

There are many methods that you can use to modify the brightness. However, you are basically using your settings or some shortcuts. In this article, we have explained different methods for Windows and Mac systems, and you can pick any one of them according to your preference.

Table of Contents

  • How to Adjust Monitor Brightness on Windows?
    • Through the Monitor Menu
    • Using Brightness Adjustment Keys on Keyboard
    • Via the Action Center
    • Through the Power Icon
    • Using the Windows Mobility Center
    • Through Windows Settings
    • Using Windows PowerShell
    • Using Graphics Adapter Properties
    • Using Third-Party Apps
  • How to Adjust Monitor Brightness on Mac?
    • Using Brightness Adjustment Keys or Control Strip
    • Through System Preferences
    • Using Mac Terminal
  • How to Set Automatic Adjustment of Monitor Brightness?
    • Adjust Brightness to Ambient Lighting
    • Adjust Brightness for Battery Mode

How to Adjust Monitor Brightness on Windows?

Below mentioned are some of the ways you can use to adjust the monitor brightness on a Windows system.

Through the Monitor Menu

If you are using an external monitor, you won’t be able to use your system settings to adjust its brightness. Each monitor contains dedicated buttons to activate its menu and change the settings such as brightness, contrast, and so on. So you need to access this menu and go through it.

  • You can usually find some buttons on the back or sides of the monitor to access the menu interface.
  • The menu also usually indicates which buttons you need to press to navigate the interface.
  • You need to go to Image or a similar option to find the Brightness setting.
    monitor-options-brightness
  • We recommend modifying both Brightness and Contrast per your need to properly set the screen brightness. Even with the lowest brightness, the screen will appear very bright if the contrast is too high.

Using Brightness Adjustment Keys on Keyboard

Most laptop keyboards also include dedicated keys to change the screen brightness.

  • You can usually find them on the function keys. One key raises the brightness, and the other lowers it.
    brightness-keys-windows
  • If you can’t change the brightness by pressing the keys, you may also need to press the Fn key plus that key to do so.

Via the Action Center

Windows also includes a separate quick menu called the Action Center. This menu contains a few options, including the option to modify brightness. Here’s how you can use it for this purpose:

  1. Press Windows + A to open the Action Center.
  2. Alternatively, you can also click on the Notification icon in Windows 10 or the Network/Power icon in Windows 11 on the right portion of your Taskbar.
  3. Look for the Brightness slider and drag it to adjust the setting.
    action-center-brightness

Through the Power Icon

Another way you can adjust the brightness on a Windows 10 laptop is through the Power icon. On Windows 11, clicking the power icon loads the Action Center, but you get a separate Power menu on Windows 10.

You need to drag the slider in this menu to change the screen brightness.

Using the Windows Mobility Center

The Windows Mobility Center is another quick menu on a Windows laptop, which also includes an option to change the screen brightness. To use it,

  1. Press Win + X to open the WinX or Power User menu.
  2. Select Mobility Center.
  3. Use the slider on the Display brightness to modify the setting.
    display-brightness-mobility-center

Through Windows Settings

You can also use your built-in Settings app to change a laptop’s display brightness. Here’s how you can do so:

  1. Press Windows + I to open Settings.
  2. Go to System > Display.
  3. Move the slider next to Brightness to change this setting.
    Brightness-windows-settings

Using Windows PowerShell

Another method you can use to adjust your monitor brightness on a laptop is by using a Windows Management Instrumentation (WMI) class command in Windows PowerShell. To do so,

  1. Open Run and enter powershell to open Windows PowerShell.
  2. Enter the command below while replacing brightness with the percentage of the brightness you want:
    (Get-WmiObject -Namespace root/WMI -Class WmiMonitorBrightnessMethods).WmiSetBrightness(1,“brightness”)
  3. For example, (Get-WmiObject -Namespace root/WMI -Class WmiMonitorBrightnessMethods).WmiSetBrightness(1,60)
    brightness-powershell

Using Graphics Adapter Properties

The graphics control panels on your computer also allow you to change the screen brightness. We normally use Intel, AMD, or NVIDIA graphics cards, so here are the steps you need to perform on their control panels:

Intel Graphics Control Panel

  1. Right-click on an empty area of your desktop and select Intel Graphics Control Panel.
  2. If the option is not there, search for it on the Search bar (Win + S).
  3. Go to Display and then Color Settings.
  4. Select your display monitor from the drop-down box below Select Display.
  5. Adjust the sliders for Brightness and Contrast to your liking.
    brightness-contrast-display-intel-control-panel
  6. Click Apply.

AMD Radeon Settings

  1. Right-click on an empty area of your desktop and select AMD Radeon Settings.
  2. If the option is not there, search for it on the Search bar.
  3. Go to Display and then select your display monitor from under Global Display.
  4. Enable Custom Color and use the Brightness and the Contrast sliders per your preference.
    AMD-Radeon-settings-brightness-contrast

NVIDIA Control Panel

  1. Right-click on an empty area of your desktop and select NVIDIA Control Panel.
  2. If the option is not there, search for it on the Search bar.
  3. Select Adjust desktop color settings from under Display.
  4. Pick the display you want to change the brightness for.
  5. Check Use NVIDIA Settings.
  6. Drag the Brightness and Contrast sliders per your preference.
    adjust-desktop-color-settings-brightness-contrast

Using Third-Party Apps

You can also use third-party brightness and dimmer apps to adjust monitor brightness. This method is especially useful if you have a multi-monitor setup and you need to constantly change the monitors’ brightness simultaneously. Some examples of such apps include F.lux, Dimmer, ClickMonitorDDC, Display Tuner, and so on.

Some computer or GPU manufacturers also provide dedicated apps that have many additional settings, including options to customize the brightness.

Many such applications also provide the option to adjust the brightness automatically depending on time, battery power, and so on.

How to Adjust Monitor Brightness on Mac?

Here are the different possible ways to adjust the monitor brightness on a Mac computer:

Using Brightness Adjustment Keys or Control Strip

Mac computers also provide dedicated keys to alter the screen brightness. As with Windows, they are normally function keys, and you may need to press the Fn key along with those keys to adjust the brightness.

Some Mac computers don’t have Function keys but include a Control Strip on the Touch Bar, which also includes a key to adjust the brightness. You can either tap and hold the Brightness icon or flick it left or right to modify the setting.

brightness-control-strip

Through System Preferences

You can also use the Display settings inside the System Preferences to change the display brightness on Mac. Here’s how you can do so:

  1. Go to Apple icon > System Preferences > Displays.
  2. Under the Display tab, drag the slider for Brightness to adjust the value.
    mac-brightness

Using Mac Terminal

Another way to adjust the screen brightness on Mac is to use the Terminal. The default option allows you to increase or decrease the brightness by one level. To use it,

  1. Open the Mac Terminal.
  2. Enter the command osascript -e 'tell application "System Events"' -e 'key code 144' -e ' end tell' to increase brightness by a level.
    osascript-mac-brightness
  3. And use the command osascript -e 'tell application "System Events"' -e 'key code 145' -e ' end tell' to decrease the brightness by a level.

However, you can install a brew addon to be able to set particular brightness for your computer. Here’s what you need to do:

  1. Open the Terminal.
  2. Enter the command /usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)" to download the Homebrew addon from GitHub.
  3. After getting a prompt, press Enter to install the addon.
  4. After the installation, you need to enter your password.
  5. Then, enter the following commands to adjust brightness:
    • brew install brightness
    • brightness x (replace x with a decimal number, 1 = full brightness, 0.5 = half brightness, and so on.)
      brew-brightness-mac

How to Set Automatic Adjustment of Monitor Brightness?

You can enable an option to somewhat adjust the monitor brightness automatically on your computer. It is possible to do so based on ambient lighting on some computers. Another option you have is to lower the screen brightness when your laptop is on battery.

Adjust Brightness to Ambient Lighting

Some computers (Both Mac and Windows computers) have an ambient light sensor. They provide an option to adjust the brightness whenever ambient lighting changes, which you can enable using the steps below:

On Windows

  1. Open Settings (Win + I) and go to System > Display.
  2. Click on Brightness and tick the Change brightness automatically when lighting changes option.
    Change-brightness-automatically-when-lighting-changes

On Mac

  1. Go to Apple icon > System Preferences > Displays.
  2. Check Automatically adjust brightness just below the slider for Brightness.
    mac-automatically-adjust-brightness
  3. You can also enable True Tone if the option exists.

Adjust Brightness for Battery Mode

Unless you use third-party or some dedicated computer manufacturer’s apps, you can’t exactly set different brightness for On Battery and Plugged-in modes. However, you can enable an option to slightly dim the brightness in such scenarios. Here’s what you need to do for this:

On Windows

  1. Open Settings and go to System > Power & Battery.
  2. Under Battery, click on Battery saver.
  3. Check Lower screen brightness when using battery saver.
    lower-screen-brightness-when-using-battery power
  4. You can set the battery level at which the Battery Saver triggers by changing the drop-down box next to Turn battery saver automatically at.
  5. You can also set this option to Always to dim the brightness on battery mode in all scenarios.

On Mac

  1. Go to the Apple icon menu> System Preferences > Energy Saver.
  2. On the Battery tab, check Slightly dim the display while on battery power.
    Slightly-dim-the-display-while-on-battery-power-mac

If you need to adjust display brightness based on the time of the day or other criteria, your only option is to use some third-party apps.

how-to
Abhishek Silwal
  • LinkedIn

Abhishek Silwal is an Electronics Engineer and a technical writer at TechNewsToday. He specializes in troubleshooting a wide range of computer-related issues. His educational background in Electronics Engineering has given him a solid foundation in understanding of computers. He is also proficient in several programming languages and has worked on various robotics projects. Even in his early days, he used to tinker with various computer components, both hardware, and software, to satiate his curiosity. This experience has given him a breadth of experience that goes beyond his educational qualification. Abhishek has been writing articles on dealing with varieties of technical issues and performing specific tasks, especially on a Windows machine. He strives to create comprehensive guides on fixing many system and hardware issues and help others solve their problems. You can contact him at abhisheksilwal@technewtoday.com

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