# kfix/ddcctl

DDC monitor controls (brightness) for Mac OSX command line

Repository: https://github.com/kfix/ddcctl
Canonical: https://ross.abutalabs.com/products/ddcctl
Language: C
License: GPL-3.0
License Family: copyleft
Topics: macos, ddc, monitor, osx
Last push: 2022-11-29T07:39:32+00:00

## Health v2 (maintenance only)
Score: 23/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 0, release rhythm 8, longevity 100
- inputs: {"age_days": 4415, "days_push": 1373, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1961, forks 156 (observed 2026-08-28T04:05:59.479544+00:00)

## What it is
A macOS command-line utility for controlling external monitors via DDC/CI, supporting brightness, contrast, input source, and other monitor settings. It is a GPLv3 personal utility in maintenance mode, installable via Homebrew or prebuilt binaries.

## Use cases
- adjust external monitor brightness from the terminal
- switch monitor input source to HDMI or DisplayPort via script
- control monitor contrast and RGB settings from the shell
- bind monitor presets to Alfred or Karabiner hotkeys
- script brightness changes for multiple displays on a Mac Mini

## When to choose
- you need to script or automate external monitor settings on macOS
- your monitor's buttons or OSD are inconvenient and it supports DDC/CI
- you want a lightweight Homebrew-installable CLI rather than a GUI app

## When to avoid
- you need a graphical interface for monitor control
- you need active support or new features, since the project is in maintenance mode
- your display does not implement DDC/CI properly, as many settings may not work

## Facets
- artifact type: cli-tool
- maturity: maintenance
- function: cli, developer-tools, configuration-management
- domain: developer-tools, hardware, operating-systems
- platform: cli
- tags: ddc, monitor-control, brightness, external-displays, hackintosh, command-line, macos

## Member repositories
- kfix/ddcctl (main) score 23

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:05:59.479544+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T03:05:38.103638+00:00, confidence not recorded.
  - readme: https://github.com/kfix/ddcctl (fetched 2026-08-28T04:05:59.479544+00:00, sha 51c4bdf67378)
- Data as of 2026-08-30T08:39:29.467469+00:00.