# Install m1ddc with Homebrew, MacPorts, Nix Control external displays (USB-C/DisplayPort Alt Mode) using DDC/CI on M1 Macs. Version 1.2.0 via Homebrew; verified 2026-05-12. ## Install ```sh sudo av install brew:m1ddc ``` Additional install commands: ### macOS - Homebrew (100%): ```sh brew install m1ddc ``` Evidence: local Homebrew formula metadata - MacPorts (94%): ```sh sudo port install m1ddc ``` Evidence: MacPorts ports tree: sysutils/m1ddc/Portfile from https://api.github.com/repos/macports/macports-ports/git/trees/master?recursive=1 ### Linux - Nix (92%): ```sh nix profile install nixpkgs#m1ddc ``` Evidence: nixpkgs package indexes: pkgs/by-name/m1/m1ddc/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1 ## Package facts - **Package key:** brew:m1ddc - **Package manager:** Homebrew - **Package manager page:** - **Version:** 1.2.0 - **Source summary:** Control external displays (USB-C/DisplayPort Alt Mode) using DDC/CI on M1 Macs - **Homepage:** - **Repository:** - **Upstream docs:** - **License:** MIT - **Source archive:** - **Last updated:** 2026-05-12T09:42:19+01:00 - **Generated:** 2026-07-08T07:18:31+00:00 ## Executables - m1ddc (cli) - m1ddc (alias) ## Install behavior - Post-install hook: not defined - Bottle: available on arm64_monterey, arm64_sequoia, arm64_sonoma, arm64_tahoe, arm64_ventura ## Freshness - Page generated: 2026-07-08 - Package-manager version: 1.2.0 - Package-manager updated: 2026-05-12 - Local data: ok - Upstream repository: https://github.com/waydabber/m1ddc - Upstream latest detected: v1.2.0 (current) ## Project history and usage m1ddc is a small command-line utility for controlling external displays over DDC/CI on Apple Silicon Macs connected through USB-C or DisplayPort Alt Mode. ### Project history The project was created in 2021 by the developer behind BetterDisplay-era Mac display tools. Its README positions it as a small scriptable utility and points users who need a more advanced CLI to BetterDisplay. Upstream releases were explicitly framed around Homebrew distribution. Version 1.0.0 was the initial Homebrew-oriented release in January 2023; later releases added M2 support, community improvements, and enhanced display identification. ### Adoption history m1ddc filled a narrow but real gap for early Apple Silicon users: external monitor brightness, contrast, volume, input, and PIP/PBP controls were useful from scripts even when GUI display tools were heavier than needed. The repository has hundreds of stars and dozens of forks, and the supplied package facts show Homebrew, MacPorts, and Nix packaging. ### How it is used Users build it with `make` or install it through a package manager, then run `m1ddc [options]`. The README documents examples such as setting contrast, reading luminance, changing volume, listing displays, and selecting displays by number or UUID. The README warns that the tool does not support Intel Macs or the built-in HDMI port of M1 and entry-level M2 Macs, so package users need hardware-specific expectations. ### Why package nerds care m1ddc is package-nerd interesting because it is a small native Mac hardware-control binary whose value comes from making a platform quirk scriptable rather than from broad cross-platform scope. The formula is also a good example of packaging a niche Apple Silicon command-line tool before the functionality is fully absorbed into larger display-management applications. ### Timeline - 2021: Public GitHub repository created - 2023: v1.0.0 initial Homebrew distribution release - 2023: v1.1.0 added community improvements and M2 support - 2024: v1.2.0 added enhanced display identification support ### Related projects - BetterDisplay is the upstream-recommended advanced alternative for broader Mac DDC control. - Homebrew, MacPorts, and Nix package m1ddc according to the supplied package-manager facts. ### Sources - - - - source_facts.package-manager ## 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:** m1ddc - **Version Scheme:** 0 - **Revision:** 0 - **Head Version:** HEAD - **Requirements:** arch, macos - **Bottle Stable Root URL:** - **Deprecated:** no - **Disabled:** no - **Keg Only:** no - **URL Keys:** head, stable ## Other Package-Manager Records - Nix - m1ddc: normalized package name match | nixpkgs package indexes: pkgs/by-name/m1/m1ddc/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1 - MacPorts - m1ddc: normalized package name match | MacPorts ports tree: sysutils/m1ddc/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. - [displayplacer](https://www.automicvault.com/pkg/brew/displayplacer/) - Shares av.db curated category or tags: cli, display-management, macos, system. - [asitop](https://www.automicvault.com/pkg/brew/asitop/) - Shares av.db curated category or tags: apple-silicon, cli, macos, system. - [ddcctl](https://www.automicvault.com/pkg/brew/ddcctl/) - Shares av.db curated category or tags: cli, display-control, macos, system. - [ddcutil](https://www.automicvault.com/pkg/brew/ddcutil/) - Shares av.db curated category or tags: cli, ddc-ci, display-control, system. - [devcockpit](https://www.automicvault.com/pkg/brew/devcockpit/) - Shares av.db curated category or tags: apple-silicon, cli, macos, system. - [lume](https://www.automicvault.com/pkg/brew/lume/) - Shares av.db curated category or tags: apple-silicon, cli, macos, system. - [macmon](https://www.automicvault.com/pkg/brew/macmon/) - Shares av.db curated category or tags: apple-silicon, cli, macos, system. - [mactop](https://www.automicvault.com/pkg/brew/mactop/) - Shares av.db curated category or tags: apple-silicon, cli, macos, system. - [batt](https://www.automicvault.com/pkg/brew/batt/) - Local package facts share a topical domain. Shared terms: apple, apple-silicon, cli, control, silicon. ## Combined YAML source View the package source record on GitHub. [combined/m1ddc.yml](https://github.com/automic-vault/db/blob/main/combined/m1ddc.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