How to change the brightness/contrast in my Dell notebook?

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How to change the brightness/contrast in my Dell notebook?

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I'm using Dell inspiron 4030 notebook (new) . I tried to reduce the brightness using keys (fn + brightness key) but it does not work. Is there something to do with drivers ?

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  • See if you can set the brightness in the Power settings.

    There is no contrast adjustment for LCD screens.

    XPS M1530, Windows 8.1 Pro 32-bit
    Inspiron E1705, Windows 8.1 Pro 32-bit
    Dimension 9100, Windows 8.1 Pro 32 bit
    Inspiron 660, Windows 8.1 Home - 64 bit
    Compaq DX 4370G, Windows 8.1 Home - 64 bit
    Asus T100 Tablet, Windows 8.1 Home - 32 bit

  • New computers do not use the FN key with the brightness key. Try the brightness key alone. You can change this behavior in Windows Mobility Center. The F keys serve double duty--with and without the Function key.