unable to increase and decrease brightness in my laptop

hardikptl121

Estimable
Jul 31, 2014
2
0
4,510
0
i have hp 15-r006 tu laptop and i can not increase and decrease brightness in laptop. all driver installed ok.
can anyone tell me how to solve that problem.
 

hardikptl121

Estimable
Jul 31, 2014
2
0
4,510
0


its alrady selected Generic PnP Monitor. still its not working
 
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