Help for a novacustom laptop: works fine but..no special keys
 

As title said.
I have bought a nice NovaCustom Laptop (they offer coreboot firmware installed).
Works all, but no special keys.
When I press the key for brightness up nothing change
When I press the key for volume up..nothing change
No special keys work!
On old Dell Laptop all keys works without need of configuration..

The keys seem's to work, i press fn+key
and i can put laptop on sleep,
or turn off the screen (FN+F2)
or put volume up and down..but the main problem remain: the screen brightness
don't work

Solution found:

vim /etc/X11/xorg.conf.d/91-intel-backlight.conf

Section "Device"
Identifier "Intel Graphics"
Driver "intel"
Option "Backlight" "intel_backlight"
EndSection

The option Backlight must be manually enabled
Now works fine