Change backlight level in fedora

As we are using Xwindow, it is quite easy for us to control backlight in 'xorg.conf' .

Having searched in google, I think this must be the best one:

sudo vim /etc/X11/xorg.conf

Then add this before "EndSection":

Option "RegistryDwords" " EnableBrightnessControl=1"

In the end, restart using:

sudo init 6

Now, you can control the screen brightness using "Fn+F7"!