Brightness hotkey doesn't work on laptop asus k501ux [Ubuntu 16.04.1]

Question

I have laptop asus k501ux, just installed ubuntu and it seems every key works except brightness controls, in my case it is Fn+F5 (up) and F6(down). any idea why is that happening and how to fix it?

The laptop is different and the solution is different. Absolutely not related. — Pilot6, Jul 30 '16 at 17:38
@pilot6 The linked question is just more broad (all Asus laptops instead of the k501ux specifically). I don't know enough about grub to talk about the solution, but it seems to be the same. — wjandrea, Jul 30 '16 at 17:41

Giorgi Khmaladze · Accepted Answer · 2016-07-30T17:31:39.650

2

Go to the terminal and open grub file

sudo gedit /etc/default/grub

Find

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"

and change to this

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi_backlight=native acpi_osi="

Update grub

sudo update-grub

Restart and it's done

That worked on Asus k501ux laptop

edited Jul 30 '16 at 17:31

answered Jul 30 '16 at 06:00

Giorgi Khmaladze

185

1

If my answer was helpful, you can accept it by clicking the check sign at the left of it, instead of editing in that it worked. @Giorgi Khmaladze – Pilot6 Jul 30 '16 at 17:35
I will check the acpi_backlight=native. It is a new param. – Pilot6 Jul 30 '16 at 17:42
This worked for me in Asus N501VW and Ubuntu 16.04. Thanks man :) – Jitu Aug 26 '16 at 11:24
This is not sufficient in Asus Zenbook UX303UA, for instance, see if the problem still persists http://askubuntu.com/q/816264/25388 – Léo Léopold Hertz 준영 Aug 29 '16 at 20:05

Brightness hotkey doesn't work on laptop asus k501ux [Ubuntu 16.04.1]

1 Answers1

Linked