Keyboard backlight not working on an Asus N56V

Question

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

===========================================================

Software

• Kubuntu 12.04 amd64

• kernel (3.5.0.5-generic) 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

==========================================================

Solutions

see the answers to the this and this question.

==========================================================

Solution 1

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
  • install asus-wmi-dkms_0.2_all.deb.gz package (from http://ubuntuforums.org/showpost.php?p=12057336&postcount=49)
  • reboot
• 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)

Solution 2

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

Solution 3

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.

Comments

[nanofarad]

Please do not make multiple similar questions. Please use one question if they are related(as some of your questions are).

[Mirto Busico]

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

[jrouquie]

Is this answer really about Ubuntu? Seems like Windows-specific to me.

[Can]

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?