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I have a problem with adjusting screen brightness on windows 7 x64.

If I change brightness with nvidia control manager, it works correctly but if I change it with windows, it is reversed. Pushing Fn+F6 button increases brightness instead of decreasing. The same it is with windows adjust brightness settings.

I use windows 7 x64, a graphic card geforce gt m230 and a display driver nvidia 314.07 on my laptop toshiba satellite a500-1c0.

Any help would be appreciated.

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Reboot and get into your BIOS. You may have options to adjust the operation of your Fn keys from there.

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I already googled answers like this yours but I have minimum of options in BIOS. These options are missing and fast/normal boot option is missing as well. I have one more important information. If I boot to linux (ubuntu), keys work as expected. There is no brightness problem in linux. I have 32bit ubuntu. I think the problem is in 64bit version of OS. – darthcz Mar 20 '13 at 22:31
I don't have much experience with Linux, just basic user operation :(..... Sorry – Pretzel Mar 21 '13 at 15:10

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