Light regulation problem in lenovo g500

Hello.
You know that when fn and f11 or fn and f12 together, my laptop lenovo g500 heading back light or less away.
For the less it looks like there is with the fn and F11 or fn and F12 on the led comes and says the page has a high or low light . few fences like the one that is 
Fn and F11 key light was 1 .
Fn and F12 once I got to light one page was added .
The second time I got 4 fn and F12 were added to the photosensitive plate .
I was the third time that the two were added fn and F12 .
Fn F12 and knocked down a fourth one was added .
And the fifth time .... Fn and F12 've got another one that was added .
And vice versa for low light falls Tfaq page .
I wanted to ask if the addition of the second and third time as two of the four had a problem or a series lenovo g500 Mdlyh all this ?
I'm grateful to help .
I 'll buy the first laptop you could have the same problem I 'm afraid there 's nothing I did not shed yet .
next
next
next
win 7 cori7
help me please

Hi David,
Welcome to Lenovo Community Forums!
I’m sorry to hear that the Brightness functionality is not working as expected in your G500 laptop, I suggest you to Re-install the Display Driver and LEM (Lenovo Energy Management) in the computer and check the issue. Below are the links to download the same:
AMD Video Driver for Windows 7 (32-bit, 64-bit)
Intel Video Driver for Windows 7 (32-bit  or  64-bit)
Lenovo Energy Management for Windows 7 (32-bit, 64-bit)
Hope this helps!!!
Do post us back if the issue still persists.
Best Regards
Shiva Kumar
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    Did someone help you today? Press the star on the left to thank them with a Kudo!
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