Glad it worked for you. For anyone who has linux-stable on git (like me), if your kernel version lacks this, it's a matter of git cherry-pick 339ee3fcbdab736adbc30b7a3d675005c61a2a40 and there you go.
Btw this should work on any "gamer" laptop who have this USB keyboard: Bus 001 Device 006: ID 0b05:1854 ASUSTek Computer, Inc. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1732686 Title: Asus Fx553VD - Keyboard LED backlight controls are not working # kernel-bug-reported-upstream Status in linux package in Ubuntu: Triaged Bug description: Hi , i'm using this laptop with it's latest bios (V303 - https://www.asus.com/Laptops/ASUS-FX553VD/HelpDesk_BIOS/ ) Kernel : 4.14.0-041400-generic x86_64 I can't control keyboard LED backlight level with it's dedicated FN keys or anything else. FN keys are recognized by Linux Mint 18.2 and Ubuntu 16.04 but pressing them have no effect. Kernels from 4.10 to 4.14 are the same on that regard. And also i have these errors on "inxi -F && dmesg | grep -i error" [ 0.031175] ACPI Error: [PRT0] Namespace lookup failure, AE_ALREADY_EXISTS (20170728/dswload-378) [ 0.040665] ACPI Error: 1 table load failures, 10 successful (20170728/tbxfload-246) [ 0.506425] acpi PNP0A08:00: _OSC failed (AE_ERROR); disabling ASPM [ 1.694527] RAS: Correctable Errors collector initialized. [ 9.833145] EXT4-fs (sda2): re-mounted. Opts: errors=remount-ro I'm not a developer but only a user. So if i opened that issue to the wrong place can you point me the correct place to open it? Thanks. --- ApportVersion: 2.20.1-0ubuntu2.12 Architecture: amd64 CurrentDesktop: X-Cinnamon DistroRelease: Linux 18.2 InstallationDate: Installed on 2017-10-22 (24 days ago) InstallationMedia: Linux Mint 18.2 "Sonya" - Release amd64 20170628 NonfreeKernelModules: nvidia_uvm nvidia_drm nvidia_modeset nvidia Package: linux (not installed) ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=tr_TR.UTF-8 SHELL=/bin/bash Tags: sonya Uname: Linux 4.14.0-041400-generic x86_64 UnreportableReason: The running kernel is not an Ubuntu kernel UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo _MarkForUpload: True To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1732686/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp