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.


  • 1
    Please do not make multiple similar questions. Please use one question if they are related(as some of your questions are).
    – nanofarad
    Aug 6, 2012 at 18:44

3 Answers 3


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)
  • Tried fn-keys all installed but no backlight now xev says for fn-f3 and fn-f4 keycode 237 In /sys didn't appeare any vew class as Seems that kekeys are sending codes but nothing is attached to these events also audio volume fn-f11 fn-f12 do not work Wha can I try? Thanks Jul 24, 2012 at 9:20
  • I added "options snd-hda-intel model=asus-mode4" and rebooted. 4.0 option showed up instead of 2.1 in sound pref. When I select 4.0 subwoofer works as "rear right" and rear left is empty. Normal speakers work normal (front left - front right). How can I add 2.1 option to sound preferences?
    – Can
    May 13, 2013 at 11:42

Only thing that works for me is echoing like this:

echo 1 > /sys/class/leds/asus::kbd_backlight/brightness

Keyboard light hotkey (Fn + F3 and F4) rarely work on an Asus G60J


I bought an Asus N56VM laptop recently and sent the company an email concerning the following problem: Do not know how to turn on the keyboard backlight.

The following answer (edited) from Asus solved my problem:

  1. Go to Control Panel to uninstall the ATK package.
  2. Download and reinstall the ATKACPI driver and hotkey-related utilities. Here's the link.
  3. Download and reinstall the KB Filter Driver. Here's the link.
  4. Use FN+F3/FN+F4 to adjust the backlight of the keyboard for a try.
  • 2
    Is this answer really about Ubuntu? Seems like Windows-specific to me.
    – jrouquie
    Oct 27, 2012 at 18:44

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