Display brightness controller

Lunar is an adaptive monitor brightness controller and DDC/CI display manager. It allows for the control of hardware brightness, contrast, and volume on external monitors using native communication protocols. When direct hardware control is unavailable, it functions as a software gamma dimmer to simulate brightness reduction. The project synchronizes external monitor brightness with laptop light sensors, wireless lux meters, or astronomical sun position calculations. It also manages hardware monitor presets, enabling the automation of display configurations and input switching through custom

BetterDisplay is a comprehensive display management utility and virtual display engine designed to provide granular control over monitor configurations. It functions as a low-level hardware controller that interacts directly with graphics drivers and system APIs to override manufacturer limitations, enabling users to manage resolution, scaling, brightness, and color profiles across complex multi-monitor setups. The project distinguishes itself through its ability to generate synthetic virtual displays and inject custom framebuffers into the graphics pipeline, allowing for arbitrary resolution

Redshift is a circadian lighting tool and color temperature controller designed to align screen output with natural light cycles. It functions as a display manager for X11 environments, adjusting screen color temperature based on the time of day and geographic location to reduce eye strain. The software automates display lighting by calculating the sun's position using stored coordinates to shift screen colors from blue to warmer tones. It also acts as a screen brightness manager by manipulating gamma ramps to simulate precise brightness levels when hardware backlight controls are insufficien

Redshift is a circadian lighting controller and location-aware display tool that adjusts screen color temperature and brightness based on the time of day. It functions as a display gamma manager, modifying color temperature to match ambient lighting conditions and reduce eye strain. The system determines the ideal screen temperature by calculating the sun's elevation using geographic coordinates, which can be provided manually or through automated location tracking. It employs gamma-ramp manipulation to simulate brightness changes and apply color temperature adjustments at the hardware level.

Brightness is a Linux desktop utility for controlling screen luminosity and color temperature on both primary and external displays. It provides hardware and display management capabilities to adjust built-in laptop screens and secondary desktop monitors. The application includes features for managing display color profiles, allowing users to save current settings and load previously stored configurations for instant restoration. It also supports adjusting screen warmth by tuning red, green, and blue color ratios. System integration is achieved through desktop session bus communication, dire

MonitorControl is a macOS display control utility and external monitor manager. It functions as a DDC/CI display controller that allows users to adjust the brightness and volume of third-party monitors using native Apple keyboard keys. The software mimics native macOS hardware feedback by implementing a system overlay tool that renders on-screen display indicators during adjustments. It further provides the ability to synchronize brightness levels across multiple screens or replicate ambient light sensor changes to external displays. The utility includes capabilities for mapping custom keybo

Twinkle Tray is a Windows display manager and DDC/CI monitor control utility designed to manage hardware settings across internal and external displays. It functions as a system tray application that allows for the adjustment of brightness, contrast, and volume on multiple monitors. The project provides multi-display brightness normalization to balance backlight levels across different hardware profiles for a consistent visual experience. It also includes an automatic brightness scheduler that modifies luminosity based on the time of day or system idle states. Beyond the user interface, the

Monitorian is a Windows utility for adjusting the brightness and contrast of internal and external monitors, primarily through the DDC/CI protocol. It allows users to change these settings for multiple monitors individually or in unison, and provides the ability to rename monitors by editing their displayed names directly. The application extends basic display control with automation and scheduling capabilities. Users can bind brightness adjustments to hot keys, schedule changes to occur at specific times or under certain conditions, and control brightness using touchpad gestures on precision

Ddcctl is a command-line utility for macOS that interfaces directly with connected hardware displays to modify settings programmatically. It provides terminal-based control over external monitor properties such as brightness, contrast, volume, and color profiles. The utility communicates with external hardware using the standard bidirectional monitor control bus to read and write feature values. It queries native operating system display services and walks the kernel device registry to discover attached physical monitors, resolve their hardware service ports, and map user input from terminal