Keyboard backlight does not work in my Samsung NP900X4B as well. I am running Ubuntu 14.04 LTS with UEFI disabled.
The strange thing is that I had it working on my first installation of Ubuntu on this notebook. I was running Ubuntu 12.04 at that time. Later on, when I upgraded Ubuntu to 13.04, keyboard backlight ceased to work. It appears that Kieran Clancy's solution is specific to UEFI mode. Would it be possible to do something similar with UEFI disabled? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1203592 Title: Keyboard backlight does not work in Samsung Series 9 NP900X4C To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-settings-daemon/+bug/1203592/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs