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The fn + f3 and fn + f4 are not working, the others seem to be working fine. This is what I tried to do to fix it: I opened the grub file using gedit, changed the permission. changed: RUB_CMDLINE_LINUX_DEFAULT=”quiet splash “ into: RUB_CMDLINE_LINUX_DEFAULT=”quiet splash acpi_backlight=vendor“

But I can't save the file, because it couldn't store a copy. Any advice?

edit: sometimes they seem to work, sometimes notting happens. I can turn on the lights using fn + f4 and by repeadetly clicking fn + f3 and f4, they will eventually turn off. WTF

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  • What hardware are you running on?
    – MadMike
    Oct 8, 2013 at 21:11
  • I have an Asus G60JX. intel core i7, nvidia geforce GTS 360M Oct 8, 2013 at 21:16
  • Try an external USB keyboard to see if the problem is specific to the keyboard or runs deeper.
    – K7AAY
    Oct 8, 2013 at 21:25
  • The keys work fine on windows 7, I don't have an external keyboard with fn keys Oct 8, 2013 at 21:27

1 Answer 1

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Google gave with the following bug repport. Apparently there is a ppa which fixes it.

Please open a terminal with Ctrl + Alt + T. Copy & Paste the following lines:

  • On a 64-bit Ubuntu

wget http://ppa.launchpad.net/flozz/flozz/ubuntu/pool/main/a/asus-kbd-backlight/asus-kbd-backlight_0.1~ppa5_amd64.deb
sudo dpkg -i asus-kbd-backlight_0.1~ppa5_amd64.deb

  • On a 32-bit Ubuntu

wget http://ppa.launchpad.net/flozz/flozz/ubuntu/pool/main/a/asus-kbd-backlight/asus-kbd-backlight_0.1~ppa5_i386.deb
sudo dpkg -i asus-kbd-backlight_0.1~ppa5_i386.deb

Reboot your system.

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  • hey ty for your response, but I get this error when trying to update :W: GPG-fout: ppa.launchpad.net precise Release: De volgende ondertekeningen konden niet geverifieerd worden omdat de publieke sleutel niet beschikbaar is: NO_PUBKEY 3C9A6980F827E01E ok basicly it says: public key not availeble so it can't verify the signatures Oct 8, 2013 at 21:40
  • I've changed my answer. Please the new one.
    – MadMike
    Oct 8, 2013 at 22:32
  • When I turn my keyboard blacklights off, they turn inmediatly back on. So I'm able to turn them off. Oct 9, 2013 at 11:02
  • Do those commands do anything for you? askubuntu.com/questions/134021/…
    – MadMike
    Oct 9, 2013 at 11:18
  • yes I'm able to turn them off correctly with echo 0 > /sys/class/.. when I try to turn them off with fn + f3, they turn on again. Basicly a flickering keyboard :p Oct 10, 2013 at 14:36

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