Ambient Light Sensor Daemon For Linux

It's user mode daemon for change brightness base on light sensor value, designed for Asus Zenbooks, but may be used for other vendors after some tune.

Supported laptops

Works on ASUS Zenbooks with build in driver acpi-als:

UX303UB
UX305LA
UX305FA
UX310UQ
UX330UA

On Dell Inspiron 13 7353, need to change driver path and brightness levels.

Some times works (base on responses)

UX303UA
UX305CA with als driver
UX430UQ Ubuntu with build in driver acpi-als, an extra ACPI call to enable the sensor (_SB.PCI1.LPCB.EC0.ALSC)
UX410UQ

Doesn't work on Zenbooks driver issue:

UX303LN
UX305UA
UX31A
UX32LN

Something wrong with Arch Linux may be related with syslog, a pull request is appreciated

Please fill a response form, it may helps other users

Keyboard back light is not adjust because my laptop doesn't have it. Want to help? Create an issue.

How to build & install

install Rust: curl https://sh.rustup.rs -sSf | sh
clone : git clone https://github.com/mikhail-m1/illuminanced.git
build: cd illuminanced; cargo build --release
install sudo ./install.sh

How to Adjust

open a config file /usr/local/etc/illuminanced.toml (Default)
choose how many light values do you need by [general].light_steps
set defined points count by [light].points_count
set each point by illuminance_<n> and light_<n> where illuminance from in_illuminance_raw (see below) and light in range [0..light_steps)

How it works

Reads illuminance from /sys/bus/acpi/devices/ACPI0008:00/iio:device0/in_illuminance_raw, apply Kalman like filter, set back light value base on defined points. Unfortunately I cannot find a way how get events from iio buffers, for acpi-als driver, so now it polls.

`<Fn> + A`

Switches three modes:

Auto adjust
Disabled
Max brightness (useful for movies, can be disabled by config file /usr/local/etc/illuminanced.toml)

Contribution

Any feedback are welcome

icetomcat / illuminanced