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 Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1732686 Title: Asus Fx553VD - Keyboard LED backlight controls are not working # kernel-bug-reported-upstream To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1732686/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs