I was just screwing around with this and found out something interesting. In /etc/modprobe.d/samsung-backlight.conf you'll likely see;
blacklist samsung-laptop options samsung-backlight use_sabi=0 levels=8 force=1 Remove the blacklist and keyboard backlight controls will work and org.freedesktop.UPower.KbdBacklight exists allowing you to control the keyboard brightness. But the screen backlight stops working... Add the blacklist back, screen brightness works again, keyboard brightness does not, and org.freedesktop.UPower.KbdBacklight does not exist. I don't really have any more time to play around but thought I would share. -- 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
