Keyboard Special Keys dont work

[4klee]

Hi on my asus notebook N73VZ.. running mint cinnamon 14 (EFI) my special Keys dont work. Fn+ backlight /keyboard sound on off/ and volume raise..
I found several threads but I m very confused about them and dont understand what I accually must to do. I have bumblebee allready running.
on console with find -name tool, i find some entries about asus keyboard. acpi wmi...

Can I activate them somehow?

[4klee]

Finnally solved.
Just install the kernel 3.5 or higher and then the keys work.
The display brightness keys work if you adjust de the grub boot file