Dell XPS 17 brightness not working [5 steps to fix]

by Priya Ahluwalia
Priya Ahluwalia
Priya Ahluwalia
Priya Ahluwalia is a writer who specializes in technology, particularly Microsoft Windows. She writes about the latest developments in know-how and current trends in the technology industry. When... read more
Affiliate Disclosure
  • When your Dell XPS brightness is not working, make sure to have your drivers up to date. 
  • This issue can also have something to do with a pending Windows Update issue.
  • To eliminate any hardware issue, make sure to check for any damage to your screen. 
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The Dell XPS 17 laptop is one of the best-selling brands in the market. It’s widely acclaimed for its display, compact design, and more.

But despite its perfect design, some setbacks may happen. One of them is Dell XPS brightness not working.

However, it is a very common issue that can be fixed easily. The Dell XPS laptop has a feature called adaptive brightness which automatically adjusts the screen brightness based on the ambient light.

The user can also manually adjust the screen brightness by using keyboard shortcuts or with the help of software settings.

Some Dell XPS models have a brightness control that doesn’t work. This is because the brightness control button is not connected to the screen, but to the keyboard backlighting.

The brightness will work if you press Fn + F11, which will toggle the backlighting on and off.

There are many different reasons why this issue appears, but we will try to fix this issue through the following methods.

Why is the Dell XPS 17 brightness not working?

Dell XPS brightness not working is a common problem faced by many users. Usually, it is caused due to one of the following reasons:

  • A pending Windows Update
  • Faulty screen
  • The display adapter drivers and Generic PnP Monitor are not updated
  • Misconfigured BIOS Settings.

Many people complain about the Dell XPS brightness slider not working, but there are other ways to adjust your screen’s display.

You can always use keys, buttons, or even display settings to control your brightness level. Let’s quickly try to fix the issue through the following methods.

What can I do if my Dell XPS brightness settings stop working?

1. Check for any hardware problem

Screen brightness issues can lead to real frustration and distraction. So, any time you notice that your screen has turned into a pitch-dark dungeon, or your laptop is too bright for your environment, it’s time to take action.

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You might have some corrupted drivers, but the first thing you’ll want to do is check for physical damage to your screen. A quick search should help in diagnosing the cause of your problem.

If there isn’t any physical damage, you can use our tips below to remedy the Dell XPS brightness not changing issue.

2. Update the display adapter driver

  1. Click the Start button and type device manager in the search bar, then click on the app from the results.
  2. Expand the Display Adapters list, then right-click the display adapter and select Update driver.
  3. Then, select Automatically Search for Updated Driver.

Windows will now scan your system for driver updates to install. If a new version is found, it will automatically install them and prompt you to restart the PC.

Installing the appropriate drivers will likely fix the issue. If not, be sure to move on to the next resolution.

You can also update graphics drivers via DriverFix. It is a third-party app that allows you to update, maintain, and fix your drivers.

DriverFix quickly and easily updates your drivers and restores them if something goes wrong. Additionally, it can help resolve hardware conflict errors and missing drivers.

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3. Run Windows Update

  1. Go to the search bar and type Windows Update Settings.
  2. Click on Check for updates.
  3. Download and install each update available for your system.
  4. Once done, restart your computer.

Windows Update is a core part of the Windows operating system that installs updates and downloads new features to keep the operating system running well.

4. Update Generic PnP Monitor

  1. Press Windows Key + R, type in devmgmt.msc, and hit Enter to open the Device Manager.
  2. In the Device Manager, expand the menu for Monitors.
  3. Right-click the PnP Monitor, then choose Update Device.
  4. Restart your PC for the changes to take effect.

There might be something wrong with your Generic PnP Monitor that will disrupt your ability to adjust the screen brightness. If this is the case with you, updating the PnP Monitor should take care of the issue.

5. Change BIOS Settings

  1. Reboot your PC.
  2. Once the Dell logo appears on the screen, press the F2 key.
  3. Find the Secure boot option. You should find it in the Security tab, but that can be different in your BIOS.
  4. Disable Secure boot.
  5. Enable the UEFI boot mode.
  6. Save and exit the configuration, then boot the PC normally.

At times, you encounter this issue due to misconfigured BIOS settings in your Dell XPS laptop or PC. Therefore, this method should help resolve the problem.

We know that Dell XPS brightness not changing is frustrating. Sometimes you press the brightness keys on the keyboard and it either doesn’t change anything, or the brightness doesn’t go up or down as you’d expect.

You can also check our guide on the best Dell devices to buy in 2022. We hope our tips have helped you out, and we’d love to hear how your screen looks now. Do leave your comments below.

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