can't adjust the screen brightness Predator G9-793 17 inch - screen goes black

Jay_Bro_84
Jay_Bro_84 Member Posts: 1 New User
edited November 2023 in 2019 Archives
hi i have an ACER  Predator G9-793 , windows 10 64bit , im unable to adjust the screen brightness to any lower than 100% , if i click to adjust it screen turns off , 
has anyone had this before ? any suggestions ? thanks in advance