Luminance
A GTK application to control brightness of displays, including external monitors via DDC/CI.
What is Luminance?
Luminance is a Linux desktop application that controls the brightness of both built-in and external displays. It uses the DDC/CI protocol to communicate with external monitors, solving the limitation where most operating systems only adjust internal screen brightness. The application provides both a graphical interface and command-line tools for flexible brightness management.
Linux desktop users with external monitors who want system-level brightness control, particularly those using GNOME or other GTK-based environments.
Developers choose Luminance because it's a simple, focused tool that solves a specific hardware control problem reliably. Unlike built-in OS controls, it works with external displays via standard DDC/CI, and its open-source nature allows for customization and integration.
Overview
A simple GTK application to control brightness of displays including external displays supporting DDC/CI
Use Cases
Best For
- Adjusting brightness on external monitors that lack physical controls
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