How to adjust Dell laptop brightness?

If you are a Dell laptop user, you might have wondered how to adjust the brightness settings on your device. Whether you find the default brightness too high or too low, adjusting it can enhance your viewing experience and even save battery life. In this article, we will guide you through the simple steps of adjusting the brightness on your Dell laptop.

Adjusting Brightness through Keyboard

Most Dell laptops provide convenient shortcut keys on the keyboard to quickly adjust the brightness levels. Look for two keys usually located in the top row, labeled with a sun or brightness icon. One key is for increasing brightness, while the other key is for decreasing it. **To adjust the brightness using these shortcut keys, simply press and hold the “Fn” (Function) key, then simultaneously press the brightness increasing or decreasing key**. Keep pressing until the desired brightness level is achieved.

Adjusting Brightness through Operating System

If your Dell laptop lacks dedicated brightness keys or you prefer using the on-screen interface, you can modify the brightness settings through the operating system. Here’s how you can do it on different operating systems:


1. Right-click on the battery icon in the system tray and select “Power Options.”
2. In the Power Options window, locate and select the “Change plan settings” link.
3. Next, click on “Change advanced power settings.”
4. In the new window, scroll down until you find the “Display” category, and expand it.
5. Under “Display,” you will find options to adjust the brightness settings. Modify the “On battery” and “Plugged in” levels according to your preference.
6. Finally, click “Apply” and then “OK” to save the changes.


1. Click the Apple menu, located in the top left corner of the screen, and select “System Preferences.”
2. In the System Preferences window, locate and click on the “Displays” icon.
3. A new window will open, presenting you with various display settings.
4. Move the “Brightness” slider left or right to decrease or increase the brightness, respectively.
5. Once you have set the desired brightness level, close the window.

Frequently Asked Questions (FAQs)

1. How do I adjust the brightness if my Dell laptop does not have dedicated keys?

If your keyboard doesn’t have dedicated brightness keys, follow the steps mentioned above to adjust brightness through the operating system.

2. Can I adjust the brightness and contrast separately on a Dell laptop?

No, typically on Dell laptops, you can only adjust the brightness; there is no separate control for contrast settings.

3. Why should I adjust the brightness on my Dell laptop?

Adjusting the brightness can make the display more comfortable for your eyes and conserve battery life.

4. Can I adjust the brightness automatically based on ambient light?

Yes, some Dell laptops have ambient light sensors that can automatically adjust the brightness according to the surrounding light conditions.

5. Will adjusting the brightness affect the display quality?

Brightness adjustment does not impact display quality; it simply alters the backlight intensity.

6. How do I increase the screen brightness beyond the maximum level?

Unfortunately, you cannot increase the brightness level beyond the default maximum. However, you can try increasing the contrast to make the display appear brighter.

7. Why can’t I adjust the brightness on my Dell laptop?

If you are unable to adjust the brightness, ensure that your laptop is not connected to an external display, as this can disable the brightness control.

8. How can I quickly access the brightness settings on Windows?

You can press the Windows key + I to open the Windows settings menu and then type “brightness” in the search bar to access the brightness settings directly.

9. What can I do if the brightness adjustment keys are not working?

Try updating your graphics card drivers as outdated or incompatible drivers can cause issues with brightness adjustment keys.

10. Can I adjust the brightness on my Dell laptop while running on battery power?

Yes, you can modify the brightness settings separately for battery power and when your laptop is plugged in.

11. How can I disable automatic brightness adjustment on my Dell laptop?

To disable automatic brightness adjustment, follow the same steps mentioned earlier to access the power settings and change the brightness levels manually.

12. How can I reset the brightness settings to default on Windows?

To reset the brightness settings to default on Windows, go to the power plan settings and click on “Restore plan defaults.” This will reset all power-related settings to their default state.

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