In the list of devices, locate Monitors and double click on it.Click on Start and search for Device Manager. Open it.Sometimes Generic PnP Monitor had somehow got disabled and was causing the issue. Restart windows and check This will fix “can’t adjust brightness ” bug. You Can check And install the latest updates fromĪdd a header to begin generating the table of contents If the problem started after install windows 10 version 21H2, then make sure you have installed the latest Cumulative Update. Brightness Control not working Windows 10 If you are also facing issues in adjusting the brightness of your laptop after installing the Windows 10 operating system, Here are some effective solutions you must apply. Again sometimes incorrect power configuration, third-party applications, and Windows update bug cause “ windows 10 brightness not working“. Why is my brightness not working? This issue might be occurring because of Outdated, incompatible or corrupted drivers Graphics/Display drivers installed on your computer. The brightness control bar grayed out, didn’t allow to change it Or can’t adjust screen brightness by holding the Fn key and pressing f5 or f6 to lower or raise it. The laptop’s brightness setting has been screwed after Windows 10 Update? While trying to adjust it (Screen Brightness) in the brightness setting, the 0% brightness and 100% brightness yield the same amount of light (laptop brightness won’t change)? You are not alone, Several users report, Brightness Control not working on Windows 10.
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