Brightness control is a vital feature of any operating system, allowing users to adjust the display’s light intensity to suit their environment and preferences. On Windows 10, the brightness control mechanism is typically user-friendly and efficient, but it’s not immune to problems.

Importance of Brightness Control

The ability to control brightness is more than just a matter of personal preference. It has a direct impact on the user’s comfort, eye health, and even the device’s energy consumption. Optimal brightness settings ensure that the screen is neither too dim nor too glaring, allowing for comfortable viewing in various lighting conditions. This balance helps in reducing eye strain and prolongs battery life in portable devices by consuming power efficiently.

Symptoms of Brightness Control Issues

Brightness control issues can manifest in several ways, depending on the underlying cause. Here are some common symptoms:

  1. Unresponsive Brightness Slider: The brightness slider in the settings may not respond to adjustments, remaining stuck at a particular level.
  2. Inconsistent Brightness Levels: Sometimes, the brightness might change randomly, or the actual brightness level doesn’t match the set level.
  3. Brightness Controls Missing: In some cases, brightness control options might disappear entirely from the settings menu.
  4. Hotkeys Not Working: If the keyboard shortcuts for brightness control are unresponsive, it might also indicate an issue.

Impact of Brightness Control Issues

The inability to adjust brightness control doesn’t merely lead to inconvenience. It can have more serious implications:

  1. Eye Strain and Discomfort: A too bright or too dim screen can cause eye strain, leading to discomfort during prolonged use.
  2. Energy Inefficiency: Without proper brightness control, a laptop might consume more battery, leading to reduced battery life.
  3. Potential Underlying Problems: Sometimes, brightness control issues might be a sign of underlying problems with the display or graphics drivers, which might need more extensive repairs.

Recognizing the Need for Action

Recognizing the symptoms and understanding the potential impact helps in taking timely action. Whether it’s a minor inconvenience or a sign of something more significant, addressing brightness control issues promptly ensures a better computing experience and avoids potential long-term problems.

Step-by-Step Guide to Fixing Brightness Control

This section provides practical solutions to resolve the problem.

1: Updating Graphics Drivers

Outdated graphics drivers are one of the most common causes of brightness control issues. Updating them can often resolve the problem. Here’s how:

  1. Right-Click on the Start Menu: Locate the start menu, usually in the lower-left corner of your screen, and right-click on it.
  1. Open Device Manager: Select ‘Device Manager’ from the right-click menu.
  1. Expand ‘Display Adapters’: Click on the arrow next to ‘Display adapters’ to expand this section.
  1. Right-Click on Your Graphics Card: Find your graphics card listed under ‘Display adapters,’ then right-click on it.
  1. Select ‘Update Driver’: From the right-click menu, choose ‘Update driver.’
  2. Follow the On-Screen Instructions: Windows will guide you through the update process. Restart your computer once completed.

2: Adjusting Power Settings

Windows 10 has power settings that can interfere with brightness control. Here’s how to adjust them:

  1. Open Control Panel: Type “Control Panel” in the Windows search bar and open it.
  1. Navigate to Power Options: Click on ‘Hardware and Sound,’ 

then select ‘Power Options.’

  1. Choose Your Power Plan: Click on ‘Change plan settings.’
  1. Adjust Settings: Go to ‘Change advanced power settings,’ 

Find the ‘Display’ option, and adjust the brightness settings as needed.

  1. Apply and Ok: Click ‘Apply,’ then ‘OK’ to save the changes.

3: Reinstalling Monitor Drivers

Corrupt monitor drivers can also cause brightness control problems. Reinstalling them can often help:

  1. Open Device Manager: As previously described, right-click on the start menu and choose ‘Device Manager.’
  1. Find ‘Monitors’: Click on the arrow next to ‘Monitors’ to expand this section.
  1. Right-Click on Your Monitor: Right-click on your monitor’s name. Select ‘Uninstall device’ and confirm the action.
  1. Restart Your Computer: Windows will reinstall the driver automatically upon restart.

4: Running Windows Troubleshooter

Windows has built-in troubleshooters for various issues, including brightness control. Here’s how to use it:

  1. Open Settings: Press ‘Windows + I’ to open the Settings app.
  1. Go to Update & Security: Click on ‘Update & Security.’
  1. Choose Troubleshoot: Select ‘Troubleshoot’ from the left-hand menu.
  2. Run the Troubleshooter: Click on ‘Additional troubleshooters,’ 

find ‘Display,’ and follow the on-screen instructions.

Following this detailed guide will help you address the most common issues related to brightness control in Windows 10. 


Fixing brightness control in Windows 10 can be frustrating, but with this guide, you should be able to get your brightness back to normal. Whether it’s updating drivers, adjusting settings, or even seeking professional help, there’s a solution to fit your situation.