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Why do the Brightness Adjustment (Fn+F8, F9) keys not work?

April 26, 2017adjustment brightness f9 keys

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Why do the Brightness Adjustment (Fn+F8, F9) keys not work?

1 Answer

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Generally, the brightness adjustment in LCD panels is so incremental that the human eye cannot tell the difference. It is easier to see the difference in brightness when in the Windows environment rather than in the DOS environment.