What should I do if the brightness adjustment in Win11 does not work? Analysis of Win11 brightness adjustment failure problem

Many users want to adjust the brightness of the screen when using the computer, but find that win11What should I do if the brightness adjustment does not work? Let this site carefully introduce to users the analysis of the Win11 brightness adjustment failure problem.

win11 brightness adjustment failure problem analysis

Method 1,

1. Start running with the "win R" shortcut key, enter "regedit", and return The car opens.

2. After entering the registry editor, copy "Computer HKEY_LOCAL_MACHINESYSTEMControlSet001ControlClass{4d36e968-e325-11ce-bfc1-08002be10318}" into the address bar above and press Enter. Position here.

3. Then click on the "0000" folder on the left and double-click to open the "FeatureTestControl" on the right.

#4. Finally, in the window that opens, change the "numeric data" to "ffff", click OK to save, and then restart the computer.

Method 2,

1. First try right-clicking on the desktop and opening the "nvidia Control Panel".

#2. Then enter "Adjust Desktop Color Settings" under the display on the left.

#3. See if you can adjust the brightness here.

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