I use
xrandr –-output LVDS1 –-set BACKLIGHT 5 Or values other than "5".
See http://linux-software-news-tutorials.blogspot.co.uk/2011/07/how-to-change-screen-brightness-of.html
I use
xrandr –-output LVDS1 –-set BACKLIGHT 5 Or values other than "5".
See http://linux-software-news-tutorials.blogspot.co.uk/2011/07/how-to-change-screen-brightness-of.html