display adapter problem

Aug 20, 2018
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hi .there is problem in my laptop that it doesnt showing display adapter in device manager .i tried to download many driver but no use thats why im not able to reduce brightness and play games plz tell me what to do
 
Aug 20, 2018
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bro i tried to install,but its not installing ,laptop acer aspire a315 -31 win 8.1 pro
 
Aug 20, 2018
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i also tried it but it said that all driver are up to date
 
Aug 20, 2018
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i tried to uninstall but still no effect on system bro..now im getting frustrated with it