fedora lxde change brightness

view story

http://forums.fedoraforum.org – I am having trouble setting my brightness in lxde. I have tried several methods and none of them are working :(. Code: $ xbacklight -set 70 No outputs have backlight property [bob@localhost ~]$ xbacklight No outputs have backlight property I also tried xrandr but I don't seem to be using the right output. Code: $ xrandr --output LVDS1 --brightness 0.8 xrandr: Failed to get size of gamma for output default warning: output LVDS1 not found; ignoring xrandr: Need crtc to set gamma on. [bob@localhost ~]$ [bob@localhost ~]$ [bob@localhost ~]$ xrandr --verbose xrandr: F (HowTos)