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Question Can't modify brigthness

brutzza

Reputable
Jan 7, 2016
65
0
4,530
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Hi people.
I installed a W7 Pro x64 in an Acer Aspire E5-521
Everything works fine, function keys + F1/2/.../12
But the birightness option doesn't work (Fn + arrows).
Even in contorl panel, battery options, the bright option to move it from left to right to modify the bright, it doesn't appear.
I reisntalled the vga driver from amd catalyst, restarted, and nothing... I even installed a random software that is like an external box to modify the bright but nothing works.
Any suggestions?
Thanks
 

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