Ubuntu – Keyboard backlight not working on an Asus N56V


See this question.

The FN keys are not working

Using answer in this question I installed the asus-wmi-dkms_0.2_all.deb.gz package

Now, using xev I see that the keys emit keycodes (for backlight keys xev says for fn-f3 and fn-f4 keycode 237)

But no keyboard backlight, also volume keys have no effect

================ original question ========================================

I cannot enable the keyboard backlight
Seems that the leds class is missing
I've not found the classes used in Keyboard light hotkey (Fn + F3 and F4) rarely work on an Asus G60J

Description of my framework:


Machine: Asus N56V laptop



  • Kubuntu 12.04 amd64

  • kernel ( and drivers from xorg-edgers fresh X crack ppa


Hardware and problems

  • after installation do not boot – SOLVED using boot-repair

  • every couple of hours the system freezes – SOLVED using 3.5 kernel

  • keybord FN keys – NOT WORKING

  • Keyboard backlight – NOT WORKING

  • Nvidia GEFORCE GT – NOT USED glxgears says 60 fps

  • Ethernet Atheros card – SOLVED install alx driver

  • external subwoofer – SOLVED adding options snd-hda-intel model=asus-mode4



see the answers to the this and this question.


Best Answer

For N56V and N76V, you need :

  • a 3.5 kernel (from quantal)
  • to get the subwoofer
    • I add on /etc/modprobe.d/alsa-base.conf this line: options snd-hda-intel model=asus-mode4
    • reboot and select 2.1 output in audio pref
  • to get the fn keys + keyboard backlight
  • to get the GeForce (when you want)
    • install bumblebee and driver from x-swat repository
  • to get the Ethernet
    • build/install alx module (http://www.linuxfoundation.org/collaborate/workgroups/networking/alx)
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