macOS
Homebrewverified · 100%
brew install m1ddclocal Homebrew formula metadata
MacPortsverified · 94%
sudo port install m1ddcMacPorts ports tree · sysutils/m1ddc/Portfile · source: api.github.com
brew
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
Additional install commands
Linux
Nixverified · 92%
nix profile install nixpkgs#m1ddcnixpkgs package indexes · pkgs/by-name/m1/m1ddc/package.nix · source: api.github.com
overview
Package summary
Control external displays (USB-C/DisplayPort Alt Mode) using DDC/CI on M1 Macs
Project links
Commands and aliases
- m1ddc
history
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
security posture
Risk level: green
narrow executable package without higher-risk signals.
Risk classifier
green risk · low confidence · appliance
Why
- narrow executable package without higher-risk signals
Signals
- metadata:no-higher-risk-signals
Install behavior
- No Homebrew post-install hook is recorded in formula metadata.
- Homebrew bottle metadata is available for 5 platform targets.
Recommended review
Before unattended agent use, check whether the tool reads plaintext credentials, writes remote state, publishes artifacts, or shells out to plugins.
executables
Installed executables
| Command | Kind | Exposure | Note |
|---|---|---|---|
m1ddc | cli | global executable |
freshness
Version and freshness
These signals separate page generation age, package-manager activity, and upstream release comparison. Version lag is warned only when an evidence URL and comparable versions are present.
page generated2026-07-08
manager version1.2.0
manager updated2026-05-12
local dataok
upstreamcurrent
latest detectedv1.2.0
https://github.com/waydabber/m1ddc
- okNo freshness warnings were generated.
install metadata
Package metadata
| Package key | brew:m1ddc |
|---|---|
| Version | 1.2.0 |
| Package manager | Homebrew |
| Package manager page | https://formulae.brew.sh/formula/m1ddc |
| Homepage | https://github.com/waydabber/m1ddc |
| Repository | https://github.com/waydabber/m1ddc |
| Upstream docs | https://github.com/waydabber/m1ddc#readme |
| License | MIT |
| Source archive | https://github.com/waydabber/m1ddc/archive/refs/tags/v1.2.0.tar.gz |
| Last updated | 2026-05-12T09:42:19+01:00 |
| Pulse | updated |
| Bottle | available (on arm64_monterey, arm64_sequoia, arm64_sonoma, arm64_tahoe, arm64_ventura) |
| Homebrew post-install | not defined |
| Service | none declared |
registry facts
Source database details
| Source Database | Homebrew formula API |
|---|---|
| Tap | homebrew/core |
| Full Name | m1ddc |
| Version Scheme | 0 |
| Revision | 0 |
| Head Version | HEAD |
| Requirements |
|
| Bottle Stable Root URL | https://ghcr.io/v2/homebrew/core |
| Deprecated | no |
| Disabled | no |
| Keg Only | no |
| URL Keys |
|
source database matches
Other package-manager records
Matches are pulled from external package-manager indexes and kept separate from local Automic Vault package links.
Nix95%
m1ddc
nix profile install nixpkgs#m1ddc- normalized package name match
- Matched by: M1ddc
MacPorts95%
m1ddc
sudo port install m1ddc- normalized package name match
- Matched by: M1ddc
source trail
Generated from repository data
This page is generated by av-web from the private package SQLite artifact built by scripts/generate-pkg-sqlite.py.
Combined YAML source
View the package source record on GitHub.
Used sources
- Geiger risk classifier
- Nucleus package database
- av.db category and tag curation
- cross-ecosystem install command graph
- curated package history
- external package-manager database matches
- package relationship graph
- package version freshness
- package-page enrichment