Thanks for sharing the fixes everyone. I was able to get this to work too.
For the record, the fix for me was the following: 1) mask the dell::kbd_backlight.service, as described above 2) go into the bios, and change the keyboard led timeout from 10s to 5s Note that it had to be done in that order. For some reason if the kbd_backlight service is not masked, it somehow forces the bios led timeout back to 10s, and then the keyboard led always remains lit. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to unity-settings-daemon in Ubuntu. https://bugs.launchpad.net/bugs/1510344 Title: Keyboard Backlight Turns on at boot Status in Dell Sputnik: Confirmed Status in gnome-settings-daemon: Fix Released Status in One Hundred Papercuts: Confirmed Status in Skylinux: Invalid Status in unity-settings-daemon package in Ubuntu: Fix Released Status in unity-settings-daemon source package in Xenial: Fix Released Bug description: System: Dell XPS 13 9343 Action: Boot computer Expected Behavior: Keyboard backlight would be off when computer is booted Actual Behavior: Keyboard backlight is on at boot This did not happen with Ubuntu 15.04 There are new files in Ubuntu 15.10 - /sys/class/leds/dell::kbd_backlight$ cat stop_timeout 60s cat start_triggers +keyboard +touchpad cat trigger [none] AC-online BAT0-charging-or-full BAT0-charging BAT0-full BAT0-charging-blink-full-solid usb-gadget usb-host cpu0 cpu1 cpu2 cpu3 mmc0 rfkill0 cat brightness 2 --- Unsure if these files are important, but included in the report ProblemType: Bug DistroRelease: Ubuntu 15.10 Package: linux-image-4.1.0-2-generic 4.1.0-2.2 ProcVersionSignature: Ubuntu 4.1.0-2.2-generic 4.1.3 Uname: Linux 4.1.0-2-generic x86_64 ApportVersion: 2.18-0ubuntu5 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: ubuntu 2488 F.... pulseaudio /dev/snd/controlC0: ubuntu 2488 F.... pulseaudio CasperVersion: 1.362 CurrentDesktop: Unity Date: Tue Oct 27 01:29:47 2015 IwConfig: enx00249b0981e3 no wireless extensions. lo no wireless extensions. LiveMediaBuild: Ubuntu 15.10 "Wily Werewolf" - Alpha amd64 (20150730) MachineType: Dell Inc. XPS 13 9343 ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/casper/vmlinuz.efi file=/cdrom/preseed/username.seed boot=casper quiet splash --- cdrom-detect/try-usb=true noprompt RelatedPackageVersions: linux-restricted-modules-4.1.0-2-generic N/A linux-backports-modules-4.1.0-2-generic N/A linux-firmware 1.145 RfKill: 0: hci0: Bluetooth Soft blocked: no Hard blocked: no SourcePackage: linux UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev' UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/14/2015 dmi.bios.vendor: Dell Inc. dmi.bios.version: A05 dmi.board.name: 0TM99H dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 9 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvrA05:bd07/14/2015:svnDellInc.:pnXPS139343:pvr:rvnDellInc.:rn0TM99H:rvrA00:cvnDellInc.:ct9:cvr: dmi.product.name: XPS 13 9343 dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/dell-sputnik/+bug/1510344/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp

