# Install ddcctl with Homebrew, MacPorts

DDC monitor controls (brightness) for Mac OSX command-line. Version 1 via Homebrew; verified from local package data. Also installable with macports: sudo port install ddcctl.

## 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
- **Version:** 1
- **Source summary:** DDC monitor controls (brightness) for Mac OSX command-line
- **Homepage:** <https://github.com/kfix/ddcctl>
- **Repository:** <https://github.com/kfix/ddcctl>
- **Generated:** 2026-08-03T19:37:03+00:00

## Executables

- ddcctl (alias)

## Install behavior

- Bottle: not available

## Freshness

- Page generated: 2026-08-03
- Package-manager version: 1
## 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

- <https://github.com/kfix/ddcctl>
- <https://github.com/kfix/ddcctl#readme>
- <https://github.com/kfix/ddcctl/releases/tag/v0>
- <https://github.com/kfix/ddcctl/releases/tag/v1>
- <https://api.github.com/repos/kfix/ddcctl>


## Security Notes

narrow executable package without higher-risk signals.

- **Geiger risk:** green / low
- narrow executable package without higher-risk signals

## 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


## Combined YAML source

View the package source record on GitHub. [combined/ddcctl.yml](https://github.com/mxcl/pkgdb/blob/main/combined/ddcctl.yml)


## Sources

- pkg.so package database
- Geiger risk classifier
- curated package history
- pkgdb category and tag curation
- external package-manager database matches
- cross-ecosystem install command graph