

In this case, you can disable adaptive brightness indefinitely by disabling the option via Registry Editor.

Adaptive Brightness is enforced by Registry key – It’s also possible that adaptive brightness insists on remaining active even after you disable the option from Power options because a registry key is keeping it active.If this scenario is applicable, you can resolve the issue by disabling the feature from AMD Radeon Settings. Vari-bright is enabled – If you’re using an AMD Radeon GPU, chances are the issue is being caused by a proprietary AMD technology called Vari-Bright.Some users have managed to resolve the issue after disabling the two options from Intel HD Graphics Control panel menu. Contrast Enhancement and Film Mode is enabled – There are two Intel Graphics Control panel settings that are known to cause this particular issue – Contrast Enhancement and Film Mode Selection.Several affected users have reported that the issue was only resolved after they disabled Display Power Saving Technology from Intel Graphics and Media.

