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 Desktop Packages, which is subscribed to gnome-settings-daemon in Ubuntu. https://bugs.launchpad.net/bugs/1203592 Title: Keyboard backlight does not work in Samsung Series 9 NP900X4C Status in “gnome-settings-daemon” package in Ubuntu: Confirmed Bug description: In Ubuntu 13.04, the keyboard backlight does not work in Samsung Series 9 NP900X4C. Adding the FN key mappings as described in https://help.ubuntu.com/community/SamsungSeries9 does show information in the notification area when pressing the keyboard backlight's + and - buttons, but: 1) The notification always identifies the backlight as "full max" 2) It has no effect on the backlight - it's always off When I first installed Ubuntu on this machine (12.10), even though the fn keys never worked I did have intermitent backlight functionality - the light sensor would sometimes work and I'd see light in the keyboard. I dual boot in Windows 8 and backlighting works there, so this is not a hardware issue. More discussion can be found here: http://askubuntu.com/questions/233312/how-to-make-keyboard-backlight- fn-buttons-work-in-samsung-series-9 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-settings-daemon/+bug/1203592/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
