Arch Linux

warmos

Member

Registered: 2014-11-18

Posts: 20

asus-nb-wmi Does not show my keyboard backlight

Hi,
I am author of this topic: https://bbs.archlinux.org/viewtopic.php?id=190020
The problem was unsolved and it was maybe my fault, because i hadn't such time and mood for solving the problem.
Anyway, now I urgently need to solve this problem, because I need to use the keyboard backlight.

I can recapitulate the problem:
- I have an Asus "N56VV" laptop - it seems, no one has this same model and using Arch as me, because it seems, I am the only one facing this problem. Everybody has a different "N56VZ" version, which seems, it does not face the problem.
- The asus-nb-wmi driver can't see my keyboard backlight = no /sys/platform/asus-nb-wmi/leds/asus::kbd_backlight or /sys/devices/leds/asus::kbd-backlight (the /sys/platform/asus-nb-wmi/ folder exists by the way)

What I have tried:
- Modprobing the asus-nb-wmi
- Installing and using https://aur.archlinux.org/packages/asus-kbd-backlight/
- Various kernel params such as
        - acpi_osi=
        - acpi_osi="!Windows 2012"
        - wmi.debug_event=1
- adding asus-nb-wmi to mkinitcpio modules array
- adding asus-nb-wmi to /etc/modules-load.d/
- even tried reinstalling whole system
- I have searched ArchWiki, ArchForums, even some other distros forums, but with no luck

Only thing I know is that the backlight worked well with kernel 3.5.5 on Linux Mint 14 or 15, but that's a long time ago...
Anyway, the module seems loaded, it is possible, that my keyboard backlight just does not get detected? Is there any log about the module? Do you guys thing, that the compiling of custom kernel with some other features can solve this problem?
Or any other suggestions? Thanks in advance

Last edited by warmos (2015-12-25 00:05:45)

jeremy31

Member

Registered: 2015-11-01

Posts: 149

Re: asus-nb-wmi Does not show my keyboard backlight

Anything in /sys/class/leds/

warmos

Member

Registered: 2014-11-18

Posts: 20

Re: asus-nb-wmi Does not show my keyboard backlight

[warmos@warlaptop /sys/class/leds] $ ls
asus::wlan  input1::capslock  input1::numlock  input1::scrolllock  phy0-led

warmos

Member

Registered: 2014-11-18

Posts: 20

Re: asus-nb-wmi Does not show my keyboard backlight

Still not solved, have to bump this please help someone...

weaner

Member

Registered: 2006-04-03

Posts: 11

Re: asus-nb-wmi Does not show my keyboard backlight

What's the output of:

find / -iname '*backlight'

warmos

Member

Registered: 2014-11-18

Posts: 20

Re: asus-nb-wmi Does not show my keyboard backlight

[root@warlaptop /] $ find / -iname '*backlight'
/usr/share/licenses/xorg-xbacklight
/usr/lib/modules/4.3.3-2-ARCH/build/drivers/video/backlight
/usr/lib/modules/4.3.3-2-ARCH/build/include/config/backlight
/usr/lib/modules/4.3.3-2-ARCH/kernel/drivers/video/backlight
/usr/lib/systemd/systemd-backlight
/usr/bin/asus-kbd-backlight
/usr/bin/xbacklight
/sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-LVDS-1/intel_backlight
/sys/class/backlight
/sys/class/backlight/intel_backlight

As I said, the keyboard backlight is absolutely undetected...