Ambient Light Sensor not works

[zbyhu]

Hi guys,


CachyOs linux distro is great for my notebook, but i have struggle with one thing.


Ambient Light sensor (ALS) not works for me. I Want to use screen brightness adjustment depends on ALS.


‘cat /sys/bus/iio/devices/iio:device0/in_illuminance_raw’ return always 0.


One courious thing is that On LiveUsb Installator demo, when i open terminal and read in_illuminance_raw then it returns proper values (e.g 200, 300 seems it works). But Installed version never works. I have tested various linux distro and this feature never works.


Did you guys have any idea how to make it works?


My notebook is ASUS nx500jka.


Thanks!

 

[GatorsFan]

you could try and disable - wluma - to see if your ALS starts working

to disable it - note: you may need sudo at the beginning

systemctl stop wluma

then run

systemctl disable wluma

reboot

if it does not work then simply enable it

systemctl start wluma

systemctl enable wluma

 

[zbyhu]

i dont have such service.
'Failed to disable unit: Unit wluma.service does not exist'
Anyway sensor read not works even if i disable this feature (Auto-screen-brightness) in Plasma environment.
Im wonder why it works on live-usb demo.

 

[GatorsFan]

Have a look here if you are running KDE Plasma desktop

Ambient Light Fix

I really like Arch-deriratives such as Antergos, but I am missing the feature which automatically adjusts the screen brightness... There are programs which...

store.kde.org

 

[MikeWalsh]

I could be way off the mark, but it sounds like missing firmware to me....

(shrug...)


Mike.

 

[wizardfromoz]

@zbyhu could you give us the output from inxi -G please?

...and welcome to linux.org

Chris Turner
wizardfromoz

 

[zbyhu]

'inxi -G'

Graphics:
Device-1: Intel 4th Gen Core Processor Integrated Graphics driver: i915v: kernel
Device-2: NVIDIA GM107M [GeForce GTX 850M] driver: nvidia v: 580.173.02
Device-3: Suyin USB2.0 UVC HD Webcam driver: uvcvideo type: USB
Display: wayland server: Xwayland v: 24.1.13 compositor: kwin_wayland
driver: gpu: i915 resolution: 3840x2160~60Hz
API: EGL v: 1.5 drivers: crocus,swrast
platforms: wayland,x11,surfaceless,device
API: OpenGL v: 4.6 vendor: intel mesa v: 26.1.5-arch3.1 renderer: Mesa
Intel HD Graphics 4600 (HSW GT2)
API: Vulkan v: 1.4.350 drivers: intel,nvidia surfaces: N/A
Info: Tools: api: clinfo, eglinfo, glxinfo, vulkaninfo
de: kscreen-console,kscreen-doctor gpu: nvidia-settings,nvidia-smi
wl: wayland-info x11: xdpyinfo, xprop, xrandr

Is this one: https://www.asus.com/ie/supportonly/nx500jk/helpdesk_download/

 

[wizardfromoz]

Thanks, I have a couple of cachy os in my stable.

I will take a look at them and if I have something useful to contribute will return here and report.

Bear in mind I live in Australia, east coast UTC+10

Wizard