Brightness Setting Not Working

 

Select action center on the right side of the taskbar, and then move the Brightness slider to adjust the brightness. (If the slider isn't there, see the Notes section below.)

  1. Why Is My Brightness Setting Not Working
  2. Brightness Setting On Iphone Not Working

Some PCs can let Windows automatically adjust screen brightness based on the current lighting conditions. To find out if your PC supports this, go to Settings > System > Display. Under Brightness and color, look for the Change brightness automatically when lighting changes check box, and then select it to use this feature. This automatic setting helps make sure your screen is readable wherever you go. Even if you use it, you can still move the Change brightness for the built-in display slider to fine-tune the brightness level.

Notes:

  • You might not see the Change brightness for the built-in display slider on desktop PCs that have an external monitor. To change the brightness on an external monitor, use the buttons on it.

  • The Brightness slider appears in action center in Windows 10, version 1903. To find the brightness slider in earlier versions of Windows 10, select Settings > System > Display, and then move the Change brightness slider to adjust the brightness.

  • If you don't have a desktop PC and the slider doesn't appear or work, try updating the display driver. In the search box on the taskbar, type Device Manager, and then select Device Manager from the list of results. In Device Manager, select Display adapters, then select the display adapter. Press and hold (or right-click) the display adapter name, then select Update driver and follow the instructions.

By default, all laptops dim their display when running on battery power. Decreasing the brightness often helps conserve battery power, allowing you to use your laptop longer when it's unplugged. However, if you want to increase the brightness when on battery power, you can adjust those settings.

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Power settings

In Microsoft Windows, you can adjust the settings for brightness when the laptop is running on battery power.

Change brightness settings Go into “Control Panel” and then “Power Options” Or Right-click on the Power icon on the taskbar and select Power Options. Click the “Change plan settings” link next to whichever plan you are currently using and then click “ Change advanced power settings “. Aug 13, 2019 If the brightness slider isn’t working due to known issues with the operating system, especially after a major feature update, then Microsoft is bound to address those immediately.

Windows 8 and Windows 10

Brightness Setting Not Working
  1. Open the Windows power settings by right-clicking the power or battery icon in the Systray and selecting Power Options.
  2. In the Power Options window, select the High performance power plan, if available.

If you do not see a High performance power plan in Power Options, you can create one to use by following the steps below.

  1. In the Power Options window, in the left navigation pane, click the Create a power plan link.
  2. Under Create a power plan, select the High performance option.
  3. In the Plan name text field, enter a name for the new power plan, then click Next.
  1. Under Change settings for the plan, select an option for Turn off the display and Put computer to sleep. You can choose to leave both set to Venver, or select the number of minutes or hours from the drop-down list for each option.
Brightness
  1. Click Create to create the new power plan.

After creating the new power plan, it is automatically selected as your current power plan.

Windows Vista and Windows 7

If you have Windows Vista or Windows 7, try one of the options below to increase screen brightness while on battery power.

  1. Click the power or battery icon in the Systray.
  2. Select the High performance option to increase screen brightness.

or

  1. Right-click the power or battery icon in the Systray.
  2. Select Power Options or similar entry in the pop-up menu.
  3. In the Power Options window, select the High performance power plan and click OK.

Older computers or BIOS setup

Older computers or those not running Windows often can adjust the brightness settings through BIOS setup.

Once in the BIOS setup, look under the power, display, or video setting menu, depending on the make and model of your laptop. Check for brightness setting options under those possible menus.

Why Is My Brightness Setting Not Working

Additional information

Brightness Setting On Iphone Not Working

  • See our battery definition for further information and related links.