Laptop Brightness Slider Greyed Out
Laptop Brightness Slider Greyed Out

The perfect screen brightness setting can be the fine line between a delightful laptop experience and a strenuous one, especially if you’re spending long hours on your device. When that crucial setting goes haywire, it’s not just an inconvenience; it can strain your eyes and hamper productivity. Let’s decipher this common issue and explore how to restore control over your laptop’s brightness.

Unraveling the Brightness Quandary

The inability to adjust screen brightness can be attributed to various factors, including software hiccups, outdated drivers, or system malfunctions.

Dive into the Fixes

1. Keyboard Functionality Check

Before diving deep, ensure the obvious isn’t overlooked:

  • Make sure your Function (Fn) key is working.
  • Try other function-related shortcuts to see if the issue is limited to brightness control.
  • Ensure no external devices or software are overriding brightness controls.

2. Update Display Drivers

Outdated or corrupted drivers are frequent culprits:

  • Open Device Manager.
  • Navigate to “Display adapters” and expand the list.
  • Right-click on your graphics driver and select “Update driver”.
  • Follow prompts and let the system search for and install any available updates.

3. Adjust via Settings

Use Windows settings to tweak brightness:

  • Go to Settings > System > Display.
  • Locate the brightness slider and adjust as necessary.

4. Power Plan Tweaks

Your power settings can influence screen brightness:

  • Right-click on the battery icon in the taskbar.
  • Choose “Power Options”.
  • Select “Change plan settings” next to your active power plan.
  • Adjust the brightness for both battery and plugged-in modes.

5. Reinstall Display Drivers

If updating doesn’t help, a fresh start might:

  • In Device Manager, right-click on your graphics driver.
  • Choose “Uninstall device”.
  • Restart your laptop. Windows should automatically detect and reinstall the appropriate driver.

6. External Software Solutions

There are third-party applications available that allow you to adjust screen brightness, such as f.lux. They can be a workaround if native solutions fail.

7. System Restore

If you suspect a recent update or software installation is to blame, reverting to a previous state might help:

  • Type “System Restore” in the search bar and select “Create a restore point”.
  • Click on “System Restore” and follow the prompts to revert to a state before the issue emerged.


Brightness settings play a pivotal role in ensuring a comfortable user experience on your laptop. While it can be frustrating when adjustments aren’t responding, with the methods outlined above, you’re equipped to troubleshoot and restore optimal brightness levels effectively. And if all else fails, consider seeking professional assistance or visiting your device’s service center.

Frequently Asked Questions (FAQs)

  1. Can software updates cause brightness control issues?
    • Yes, at times, system updates might conflict with existing drivers or settings, causing such problems.
  2. Is it harmful to use a laptop with maximum brightness constantly?
    • Extended use at maximum brightness can strain your eyes and potentially reduce the lifespan of your display.
  3. Do third-party screen brightness applications consume more battery?
    • Some might have a minor impact on battery life, but it’s often negligible.
  4. Can hardware problems affect brightness settings?
    • While software issues are more common, hardware malfunctions, especially related to the graphics card, can impact brightness controls.
  5. If none of the solutions work, should I consider professional repair?
    • Absolutely. If software-based solutions fail, it’s wise to get a professional diagnosis to rule out potential hardware problems.
Eric Chan

Hi! I’m Eric and I work on the knowledge base at  You can see some of my writings about technology, cellphone repair, and computer repair here.

When I’m not writing about tech I’m playing with my dog or hanging out with my girlfriend.

Shoot me a message at if you want to see a topic discussed or have a correction on something I’ve written.

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