# ddcctl を Homebrew, MacPorts でインストール

ddcctl のインストール経路、実行ファイル、メタデータ、AI エージェント向けセキュリティノートを確認します。

## インストール

```sh
sudo av install brew:ddcctl
```

追加のインストールコマンド:

### macOS

- Homebrew (100%):

```sh
brew install ddcctl
```

  証拠: local Homebrew formula metadata

- MacPorts (94%):

```sh
sudo port install ddcctl
```

  証拠: MacPorts ports tree: sysutils/ddcctl/Portfile from https://api.github.com/repos/macports/macports-ports/git/trees/master?recursive=1

## パッケージ情報

- **パッケージキー:** brew:ddcctl
- **パッケージマネージャ:** Homebrew
- **バージョン:** 1
- **ソース概要:** DDC monitor controls (brightness) for Mac OSX command-line
- **ホームページ:** <https://github.com/kfix/ddcctl>
- **リポジトリ:** <https://github.com/kfix/ddcctl>
- **生成日時:** 2026-08-03T19:37:03+00:00

## 実行可能ファイル

- ddcctl (エイリアス)

## インストール挙動

- Bottle: 利用不可

## バージョンと鮮度

- ページ生成日: 2026-08-03
- マネージャ版: 1
## プロジェクトの歴史と使われ方

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.

### プロジェクトの歴史

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.

### 採用の歴史

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.

### 使われ方

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.

### パッケージ好きにとっての重要性

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.

### タイムライン

- 2014: GitHub repository created
- 2021: v0 release published
- 2022: v1 release published

### Related projects

- DDC-CI-Tools-for-OS-X, ddccontrol, monitorcontrol

### ソース

- <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>


## セキュリティノート

narrow executable package without higher-risk signals.

- **Geiger リスク:** グリーン / 低
- narrow executable package without higher-risk signals

## 他のパッケージマネージャ記録

- 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)


## ソース

- 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