# Install ddcctl with Homebrew, MacPorts DDC monitor controls (brightness) for Mac OSX command-line. Version 1 via Homebrew; verified from local package data. ## Install ```sh sudo av install brew:ddcctl ``` Additional install commands: ### macOS - Homebrew (100%): ```sh brew install ddcctl ``` Evidence: local Homebrew formula metadata - MacPorts (94%): ```sh sudo port install ddcctl ``` Evidence: MacPorts ports tree: sysutils/ddcctl/Portfile from https://api.github.com/repos/macports/macports-ports/git/trees/master?recursive=1 ## Package facts - **Package key:** brew:ddcctl - **Package manager:** Homebrew - **Package manager page:** - **Version:** 1 - **Source summary:** DDC monitor controls (brightness) for Mac OSX command-line - **Homepage:** - **Repository:** - **Upstream docs:** - **License:** GPL-3.0-only - **Source archive:** - **Generated:** 2026-07-08T07:18:31+00:00 ## Executables - ddcctl (cli) - ddcctl (alias) ## Install behavior - Post-install hook: not defined - Bottle: available on arm64_big_sur, arm64_monterey, arm64_sequoia, arm64_sonoma, arm64_tahoe, arm64_ventura, big_sur, catalina, monterey, sonoma, ventura ## Freshness - Page generated: 2026-07-08 - Package-manager version: 1 - Local data: ok - Upstream repository: https://github.com/kfix/ddcctl - info: No package-manager update timestamp was available. - info: No cached GitHub release or tag data was available. ## Project history and usage ddcctl is a macOS command-line utility for sending DDC monitor control commands, mainly brightness and contrast, to external displays. The README describes it as a personal GPLv3 utility in maintenance mode rather than a broad support forum. ### Project history The GitHub repository was created in August 2014. Its README says ddcctl.m sprang from a TonyMac-x86 forum thread and that DDC.c originated from jontaylor/DDC-CI-Tools-for-OS-X before being reworked by others. ### Adoption history ddcctl found a durable packaging niche because macOS users with external monitors often wanted scriptable brightness and input control. The README documents Homebrew installation first, followed by release binaries and building from source. ### How it is used Users run ddcctl from the shell to adjust display controls such as brightness, contrast, input source, volume, RGB values, and presets when the monitor firmware supports them. The README also points to an example script for controlling two monitors from a Mac mini. ### Why package nerds care For package nerds, ddcctl is the kind of hardware-adjacent CLI that earns a formula because it bridges a small OS capability gap. It is tiny, platform-specific, and useful precisely because it makes display controls scriptable. ### Timeline - 2014: GitHub repository created - 2021: v0 release published - 2022: v1 release published ### Related projects - DDC-CI-Tools-for-OS-X, ddccontrol, monitorcontrol ### Sources - - - - - ## Security Notes narrow executable package without higher-risk signals. - **Geiger risk:** green / low - narrow executable package without higher-risk signals ## Source Database Details - **Source Database:** Homebrew formula API - **Tap:** homebrew/core - **Full Name:** ddcctl - **Version Scheme:** 0 - **Revision:** 0 - **Requirements:** macos - **Bottle Stable Root URL:** - **Deprecated:** no - **Disabled:** no - **Keg Only:** no - **URL Keys:** stable ## Other Package-Manager Records - MacPorts - ddcctl: normalized package name match | MacPorts ports tree: sysutils/ddcctl/Portfile from https://api.github.com/repos/macports/macports-ports/git/trees/master?recursive=1 ## Related links - [Source-control packages](https://www.automicvault.com/pkg/source-control-tools/) - Belongs to a source-control command family. - [Terminal utility packages](https://www.automicvault.com/pkg/terminal-utilities/) - Matched terminal and command-line workflow metadata. - [Networking and protocol packages](https://www.automicvault.com/pkg/networking-protocol-tools/) - Matched network, protocol, or remote-service metadata. - [Homebrew utility packages](https://www.automicvault.com/pkg/brew-utility-packages/) - Matched Homebrew package provider. - [ddcutil](https://www.automicvault.com/pkg/brew/ddcutil/) - Shares av.db curated category or tags: brightness, cli, display-control, monitor, system. - [brightness](https://www.automicvault.com/pkg/brew/brightness/) - Shares av.db curated category or tags: brightness, cli, macos, system. - [displayplacer](https://www.automicvault.com/pkg/brew/displayplacer/) - Shares av.db curated category or tags: cli, macos, monitor, system. - [m1ddc](https://www.automicvault.com/pkg/brew/m1ddc/) - Shares av.db curated category or tags: cli, display-control, macos, system. - [asitop](https://www.automicvault.com/pkg/brew/asitop/) - Shares av.db curated category or tags: cli, macos, system. - [bluetoothconnector](https://www.automicvault.com/pkg/brew/bluetoothconnector/) - Shares av.db curated category or tags: cli, macos, system. - [blueutil](https://www.automicvault.com/pkg/brew/blueutil/) - Shares av.db curated category or tags: cli, macos, system. - [cliclick](https://www.automicvault.com/pkg/brew/cliclick/) - Shares av.db curated category or tags: cli, macos, system. ## Combined YAML source View the package source record on GitHub. [combined/ddcctl.yml](https://github.com/automic-vault/db/blob/main/combined/ddcctl.yml) ## Sources - Nucleus package database - Geiger risk classifier - package-page enrichment - curated package history - package version freshness - av.db category and tag curation - package relationship graph - external package-manager database matches - cross-ecosystem install command graph