unable to increase and decrease brightness in my laptop

[hardikptl121]

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.

 

[Mahmoud Soliman]

change the monitor driver to Generic driver and everything will go OK, I used to have this problem on my laptop.

 

[hardikptl121]

change the monitor driver to Generic driver and everything will go OK, I used to have this problem on my laptop.

its alrady selected Generic PnP Monitor. still its not working

 

[Mahmoud Soliman]

try to make it Generic non-PnP Monitor