Article Number: 000135009
LCD brightness constantly changing with Intel Display Power Setting enabled
Summary: Follow the instructions to help resolve the issue were the LCD brightness constantly changes depending on what is shown on the screen.
Article Content
Symptoms
Table of Contents:
- Does your screen brightness change depending on what is shown on the screen?
- Why is the Intel Graphics doing this?
- How to disable this function
Does your screen brightness change depending on what is shown on the screen?
When Intel's Display Power-Saving Technology is enabled, the screen may automatically change the screen's brightness depending on what content is being displayed. The next section will explain why this is happening or you can go straight to the last section for troubleshooting steps to disable this function.
NOTE: This article only deals with Intel's Display Power-Saving Technology. It does not deal with any other technology that could also affect the screen brightness. (Such as the Ambient Light Sensor.)
Cause
Why is the Intel Graphics doing this?
Intel Display Power Saving Technology (DSPT) is a power-saving feature in Intel’s latest version of mobile graphics chips. These graphics chips reducing power consumption on the computer by altering the brightness and contrast of the display.
What does this mean?
Intel DPST controls the LCD backlight, by reducing the backlight as needed they can save power. This can be important on mobile computers running off the battery. The aim is to automatically reduce the backlight brightness while maintaining good visuals on-screen. It analyzes the image to be shown, and it uses equations to change the chroma value and reduce the brightness of the backlight simultaneously. This means you should not see any distortion to the image on-screen. Intel says that 70% of the power that the backlight uses when watching media is saved.
This constant readjustment, however, is noticeable to some people, especially if they often change between different applications and media. The next section will take you through disabling the function. We only recommend doing this if you are seeing issues with this technology.
Resolution
How to disable this function
- For computers with a 5th Generation Intel Core Processors or older, the Intel Graphics Control Panel is used.
- For computers with a 6th Generation Intel Core Processors and newer, the Intel Graphics Control Panel has been removed. It has been replaced with the Intel Graphics Command Center.
Not sure what processor generation is in your computer? See Intel knowledge base article: How to Find the Generation of Intel Core Processors.
For more information, see Intel knowledge base article: How to Install the Intel Graphics Command Center.
Pick the corresponding program from the list.
-
Press and hold the Windows (
) key, and then press the q key. -
In the Search box, type
intel. -
Touch or click Intel Graphics Command Center in the list of programs.
-
Touch or click System.
-
Touch or click Power.
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Touch or click the toggle to the right of Adaptive Brightness to turn the option Off.
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Close the Graphics Command Center.
Disabling this feature in the Intel Graphics Control Panel may require you to try a couple of options to open the software depending on your version.
- Option one:
-
Press and hold the Windows (
) key, and then press the q key. -
In the Search box, type
intel. -
Touch or click Intel Graphics and Media Control Panel in the list of programs and continue to step 1.
-
- Option two:
- On an empty section of the desktop screen right-click, and then select Intel Graphics Settings and continue to step 1.
-
When the control panel opens, click the Power option.
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Set the power source to On battery.
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Clear the Display Power-Saving Technology checkbox, or select Disable, depending on your version.
-
Click Apply or OK.
Additional Information
Article Properties
Product
G Series, Alienware, Inspiron, Latitude, Vostro, XPS, Latitude Tablets, XPS Tablets
Last Published Date
19 Dec 2022
Version
11
Article Type
Solution