Unverified50% confidenceFactExact time
The macOS power management system is based on the IOPMrootDomain kernel framework and detects lid-closed status via a Hall effect sensor.
1
Sources
50%
Confidence
Long-term
Relevance
8/17/2026
First Seen
Sources
Clamshell：合上MacBook盖子不休眠，后台任务持续运行
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