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CLI tool to sync Dell monitor brightness with MacBook

CLI tool to sync Dell monitor brightness with MacBook

by misha__·Feb 24, 2026·1 point·0 comments
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AI Analysis

○Pass

MacBook brightness syncs to Dell monitor, but solves one person's hardware quirk.

Strengths
  • •Zero dependencies; leverages native macOS corebrightnessdiag and m1ddc hardware DDC/CI protocols directly.
  • •1-second polling with easing transition prevents jarring brightness jumps and feels polished.
Weaknesses
  • •Only works with Apple Silicon Macs and Dell monitors; excludes Intel Macs and other vendors entirely.
  • •Solving a single hardware integration quirk with no generalizable approach or broader utility.
Target Audience

Apple Silicon Mac users with external Dell monitors seeking automated brightness synchronization.

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