This issue affected me with a new Dell E5470 on 14.04 The issue would go away with a factory reset but after doing updates it would reappear.
The way I eventually got it fixed was Step 1: as stated above Edit file /etc/dbus-1/system.d/org.freedesktop.UPower.conf change: <allow send_destination="org.freedesktop.UPower" send_interface="org.freedesktop.UPower.KbdBacklight"/> to: <deny send_destination="org.freedesktop.UPower" send_interface="org.freedesktop.UPower.KbdBacklight"/> Step 2: Bios In my bios file I had to find the settings for the keyboard timeout and change it to something else. So if it was set to 5 seconds then I had to change it to 10 seconds. If it was set to 10 seconds then I had to change it to 5 seconds. Once I rebooted my system the keyboard returned to the expected behavior. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1510344 Title: Keyboard Backlight Turns on at boot To manage notifications about this bug go to: https://bugs.launchpad.net/dell-sputnik/+bug/1510344/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs