ddcui is a graphical user interface for ddcutil, a Linux utility used to control and query monitor settings via the DDC/CI protocol. It provides a Qt-based desktop application that allows users to adjust display parameters such as brightness, contrast, and colour levels without relying on command-line tools.
The application communicates directly with a monitor’s virtual control panel, enabling access to settings typically managed through on-screen display menus. It supports both I2C-based DDC/CI communication and, in some cases, USB-connected displays, offering a more convenient way to manage external monitors from within a graphical environment.
This is free and open source software.
Key Features
- Adjust monitor settings such as brightness, contrast, and colour levels.
- Communicates with displays using the DDC/CI protocol over I2C or USB.
- Provides access to monitor virtual control panel features without using on-screen menus.
- Qt-based desktop application with a simple and functional interface.
- Supports rescanning and synchronising feature values with the monitor state.
Website: github.com/rockowitz/ddcui
Support:
Developer: Sanford Rockowitz
License: GNU General Public License v2.0
ddcui is written in C++ and C. Learn C++ with our recommended free books and free tutorials. Learn C with our recommended free books and free tutorials.
Related Software
| Calibrate your Monitor with these Open Source Tools | |
|---|---|
| DisplayCAL-py3 | A fork of DisplayCAL with Python 3 support |
| ArgyllCMS | ICC compatible color management system |
| DisplayCAL | Display calibration and profiling |
| Gnome Color Manager | Utilities for color management to be used in the GNOME desktop |
| LPROF | Color profiler that creates ICC compliant profiles |
| ddcui | Graphical user interface for ddcutil |
| lcms2 | Small-footprint color management engine |
| colord | Manage, install and generate colour profiles |
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