ddc-ci

Intelligent adaptive brightness for your external monitors

A Windows desktop tool to adjust the brightness of multiple monitors with ease

Control monitor settings using DDC/CI and USB

macOS 菜单栏极简性能监测工具

Windows implementation of the ddcutil Linux program for querying and changing monitor settings, such as brightness and color levels.

Python monitor controls using DDC-CI.

Black out or dim idle secondary monitors. The screen wakes instantly on mouse or keyboard activity. A simple wizard lets you choose which displays to manage and set a custom idle timer.

Windows 显示器控制与亮度调节工具，支持 DDC/CI 屏幕控制、多屏联动、对比度、输入源切换、系统音量和桌面组件。Windows monitor brightness control via DDC/CI, multi-monitor management and input switching.

Automatically adjust monitor / screen brightness at night using sunrise/sunset times

Candela protects your displays from OLED burn-in and wear: panel health history, a checkup for defects, and the controls macOS leaves out for external monitors (brightness, volume, contrast, custom resolutions, HiDPI scaling). Free and open source.

DDC/CI implementation on MacOS

phos is a utility that allows you to control the brightness of your monitors using a user-friendly interface.

Content-adaptive display brightness for macOS that follows what's on screen — and learns your preference.

Free, open-source display manager for macOS — control external monitor brightness, contrast, volume & inputs over DDC/CI from the menu bar, keyboard media keys, CLI, or Shortcuts. An open alternative to BetterDisplay / Lunar / MonitorControl for Apple Silicon.

Scheduled DDC/CI display dimming for Windows

Package displayController provides a way to access the low-level monitor API in Windows system to control the display monitor function through DDC/CI, such as brightness, volume, etc

Windows WPF：監控 HDMI 孔是否有螢幕，並用 DDC/CI 一鍵把螢幕輸入切到 HDMI

Swift DDC/CI API

.NET library to parse and communicate to DDC/CI.

用软件切换显示器输入源：一台显示器共用 Windows 与 macOS 双主机时，碰哪台的键鼠显示器就跳到哪台（DDC/CI + 局域网委托）