How to stop automatic screen brightness dimming on Windows 11
- To prevent the screen from dimming automatically on Windows 11, open Settings > Display > Brightness and turn off “Change brightness automatically when lighting changes” and “Change brightness based on content.”
- Also, on Settings > Power & battery > Screen, sleep, & hibernate timeouts, turn off the “Dim my screen when I look away” option.
On Windows 11, if your laptop screen keeps dimming randomly, it could be a result of three features, including “Adapting brightness,” “Content Adaptive Brightness Control,” or because your computer includes “Presence Sensing” hardware and it’s using the “Dim my screen when I look away” feature.
The “Adaptive brightness” feature automatically adjusts the screen brightness based on the ambient light conditions.
On the other hand, “Content Adaptive Brightness Control” (CABC) is a feature that automatically adjusts the brightness and contrast based on the content on the screen. It’s similar to adaptive brightness but not the same.
Copilot+ PCs and other modern laptops can also include specific sensors that detect the presence of a person or object nearby. If so, Windows 11 will also enable the “Presence Sensing” features. One of these features is “Dim my screen when I look away,” which, as the name implies, lowers the screen brightness as you look away and increases it again as you look into the screen.
Although these features help minimize energy usage, expand battery life, and lower your carbon footprint, they can also confuse you into thinking that the brightness isn’t working, as it may appear that the device changes intensity at random.
I recently bought a Copilot+ PC, and as I started using it, I noticed the screen changing brightness as soon as I turned my head away. This quickly became distracting because I was only trying to look at another computer, so I decided to turn these settings off and write these instructions.
In this guide, I will outline the steps to disable the features that can change the brightness so that the screen doesn’t seem to be randomly dimming on Windows 11.
Disable automatic brightness dimming on Windows 11
To disable the “Adapting brightness,” “Content Adaptive Brightness Control,” and “Dim my screen when I look away” feature to prevent the screen from dimming automatically on Windows 11, use these steps:
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Open Settings on Windows 11.
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Click on System.
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Click the Display page.
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Click the Brightness setting under the “Brightness & color” section.
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Turn off the “Change brightness automatically when lighting changes” toggle switch to disable “Adapting brightness.”
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Select the Off option for the “Change brightness based on content” option to disable the “Content Adaptive Brightness Control” feature.
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Click on System again.
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Click the Power & battery page.
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Click the “Screen, sleep, & hibernate timeouts” setting.
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Turn off the “Dim my screen when I look away” toggle switch.
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(Optional) Turn off the “Turn off my screen when I leave” toggle switch.
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(Optional) Turn off the “Wake my device when I approach” toggle switch.
Once you complete the steps, the screen should no longer change the brightness automatically because you look away from the screen or the lighting changes in the room or based on the content on the screen.
However, if you’re using the rest of the default screen timeout settings, the screen should turn off automatically after 3 or 5 minutes, depending on whether the device is on battery or plugged in. You can always change these settings from the “Screen, sleep, & hibernate timeouts” setting on the “Power & battery” page.
Usually, these features are only available on laptops and tablets. Also, if you can’t find the “Dim my screen when I look away” feature, it’s likely because the device doesn’t support the “Presence Sensing.”
You can confirm whether your computer includes presence sensors from Device Manager > Sensors. In this section, you should be able to find out whether the hardware is present. The Qualcomm Snapdragon X Series processors’ presence sensors will be labeled “Qualcomm Human Presence Sensor.”
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