How to Disable Auto-Brightness on Your PC

Certain Windows PCs come equipped with an adaptive brightness or auto-brightness feature that may pose challenges for users. This function relies on ambient light sensors to gauge the surrounding light and adjust the screen brightness accordingly. However, since screen brightness is a subjective preference, many users prefer manual control over these settings.

In specific situations, the constant auto-adjustment of brightness can be bothersome. For instance, working outdoors in a cafe with varying sunlight may result in distracting and rapid changes in screen brightness.

Fortunately, there are solutions to address this issue. Below, we’ll walk you through the steps to modify the auto-brightness setting on your PC’s display, allowing you to achieve your desired brightness consistently.

Disable Auto-Brightness
photo: pixabay

Whether for work or leisure, your monitor settings significantly impact your computer experience. Here’s how to tailor your display to your preferences.

Understanding Adaptive Brightness – If you’re familiar with auto-brightness on smartphones, you’ll recognize a similar concept. The screen adjusts its brightness based on ambient light levels, preventing excessive brightness and unnecessary battery drain. Some computers, including those with Windows 8 and Windows 10, also incorporate this technology.

Reasons to Disable Auto-Brightness – There are various reasons to consider adjusting or disabling auto-brightness. If the automatic adjustments prove distracting during work or entertainment, it might be time to review your settings. Additionally, users with multiple monitors may want consistent brightness across all displays.

Manually adjusting brightness can be beneficial in specific environments, such as dimly lit rooms or outdoor settings. You can customize these settings manually or allow Windows to adjust based on factors like power source, battery level, or ambient light sensors.

Disabling Auto-Brightness:

  1. Access the Start menu and open the Control Panel.
  2. Navigate to Power Options within the Control Panel.
  3. In the Power Options window, click “Change Plan Settings” for your current power plan.
  4. Choose “Change advanced power settings” at the bottom to open the Advanced Power Options window.
  5. Scroll down to the Display option, expand it to reveal the Adaptive Brightness setting.
  6. Toggle the feature on or off for both battery and plugged-in scenarios.
  7. Save changes by clicking Apply and then OK.

If the Adaptive Display setting is not found, your device may lack a built-in ambient light sensor. If the auto-brightness setting persists despite changes, disable the Sensor Monitoring service via Win + R and entering services.msc, then stopping and disabling the Sensor Monitoring Service.

Manually Adjusting Brightness: Typically, function keys (F1 to F12) on your keyboard are designated for adjusting display brightness. Locate the key or keys with a brightness level indicator icon (usually a sun logo), and hold down Shift or Ctrl while pressing the corresponding button to change brightness.

Calibrating Your Monitor:

In addition to adjusting auto-brightness, you can calibrate your monitor for optimal performance and customization.

Monitor Calibration Using Windows 10:

  1. Type “Color Calibration” into the Windows search bar and select the result.
  2. Find the Color Calibration utility in the Display section of the Control Panel.
  3. Follow on-screen instructions to set gamma, brightness, contrast, and color balance.
  4. Save the calibration as a .ics file.

Online Calibration Tools: Apart from in-computer settings, online tools can help manually adjust monitor settings.

  • Photo Friday: Focuses on calibrating brightness and contrast for distinguishing tones.
  • EIZO Monitor Test: Allows testing various visual scenarios to assess monitor capabilities.
  • Lagom LCD Monitor Test Pages: Provides test images for adjusting brightness, contrast, and other settings.

Colorimeter Calibration: For precise calibration, consider using a colorimeter like the Spyder5 PRO designed for photographers and designers. This device ensures accurate color representation and optimal brightness.

Calibrating your monitor enhances the overall visual experience, providing color accuracy and brightness consistency across different scenarios.

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