Question about HP Compaq Presario F750US

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My keys (HP-540) for contrast,brightness are not

Key pad key f 7, f 8 are not working.Not able to adjust the contrast and brightness of laptop screen.

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Are you holding down your function key while pressing those corresponding keys?

You should see a key labeled "Fn" "F" or similar. It may also be labeled Mode.

It is generally "Fn" and blue.

Press and hold this key, and then press the F7 or F8 key repeatedly to adjust.

Hope this helps
Let us know

Posted on Apr 16, 2009

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