Hello everyone,
I'm unable to adjust brightness on my gateway laptop nv56r10m with my dedicated keyboard keys regardless of the OS (except Windows and for some strange reason Deepin Linux; the aforementioned oS are the only ones that allow me to adjust brightess).
In any other linux distribution, if I want to adjust brightness I have to input the following command into my terminal:
xrandr --output LVDS1 --brightness 0.5
thank you