gummy

CLI screen manager for X11 that allows automatic and manual brightness/temperature adjustments, via backlight (currently only for embedded displays) and gamma. Multiple monitors are supported.

Automatic brightness is based on screen contents or ambient light sensor data.

Installation

DEB packages:

• provided in each new release.

AUR packages:

• stable
• bleeding edge

RPM packages:

• to be added

A reboot may be needed after the installation to ensure udev rules for backlight adjustments are loaded.

Building from source

Requirements:

• C++17 compiler
• X11
• XCB
• XCB-Randr
• XLib-Shm
• sdbus-c++
• libudev

Apt packages

sudo apt install build-essential cmake libxext-dev libxcb-randr0-dev libsdbus-c++-dev libudev-dev

Installation

git clone https://github.com/Fushko/gummy.git
cd gummy
mkdir build && cd build
cmake .. -DCMAKE_INSTALL_PREFIX=/usr -DCMAKE_BUILD_TYPE="Release"
cmake --build .
sudo make install

Usage

Type gummy -h to print a help message.

Quick guide:

gummy start starts the daemon responsible for screen adjustments.

gummy -B 1 enables screenshot-based auto brightness, on all screens.

gummy -B 2 enables ALS-based auto brightness (if available).

gummy -B 0 -s 1 disables automatic brightness on the second screen.

gummy -b 60 -s 1 sets the brightness to 60% on the second screen.

gummy -t 3400 sets the temperature to 3400K on all screens.

gummy -T 1 -y 06:00 -u 16:30 enables auto temperature on all screens, with the sunrise set to 06:00 and sunset to 16:30.

Donations

You can buy me a coffee at: https://coindrop.to/fushko

License

Copyright (C) Francesco Fusco. All rights reserved.

GPL3