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Question posted by gunanagayan7 on March 7th, 2013

Fn+ Right Arrow Key And Left Arrow Key Not Work. Another Way Decrease The Bright

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Answer #1: Posted by brilliantV on March 7th, 2013 4:57 AM

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brilliantV

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Hey, did you make any recent hardware or software changes on your computer prior to this issue?

Step 1: If the computer does not display the Adjust Display Brightness option, check with the computer manufacturer for updated BIOS to support this option.

You may also try updating the drivers for the hardware components of the computer and check. Depending on your version of windows below is the link for vista.

Refer:
http://windows.microsoft.com/en-us/windows-vista/Update-a-driver-for-hardware-that-isnt-working-properly
http://windows.microsoft.com/en-US/windows-vista/Update-drivers-recommended-links

Step 2: You may also try system restore feature and restore it to date when you were able to see Display Brightness option in control panel. Depending on your version of windows below is the link for vista.

Refer: http://windows.microsoft.com/en-US/windows-vista/What-is-System-Restore

Hope this helps.

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