ALS-based automatic brightness (adaptive brightness)
On PCs that have an integrated ambient light sensor (ALS), if the adaptive brightness feature is enabled, Windows automatically calculates the optimal brightness level based on the brightness slider setting and the current ambient lighting. The enable adaptive brightness setting can be used to enable or disable this feature.
For additional details, refer to Table 1 ALS-based automatic brightness (adaptive brightness) setting.
Table 1 ALS-based automatic brightness (adaptive brightness) setting
| Name | Enable adaptive brightness |
|---|---|
| Description | If enabled, Windows automatically calculates the optimal brightness level based on the default brightness setting and current ambient lighting. |
| GUID | fbd9aa66-9553-4097-ba44-ed6e9d65eab8 |
| PowerCfg Alias | ADAPTBRIGHT |
| Minimum Value | 0 |
| Maximum Value | 1 |
| Label | Percentage (%) |
| Hidden | No |
| Operating System Versions | Available in Windows Vista and later versions of Windows |