Case study

t2-cruise: reconstructing Apple SMC power-limit behavior on Linux

t2-cruise reconstructs how a T2 MacBook's Apple SMC requests CPU and GPU power limits. The author compared SMC readings under macOS and Linux, mapped MSLC and MSLG limit steps, and wrote a Linux daemon that applies them through intel_pstate and an optional Radeon power cap.

Targets: Firmware
Category: Independent reconstruction cases
Relationship: Independent reconstruction project
Sources reviewed: 2026-11-06
Evidence class: C2 code & docs, no demo or download

Stars: 0
Last commit: 2026-11-03
Language: Python
License (GitHub): GPL-3.0

GitHub data as of 2026-11-10

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Evidence

Observed: Code and documentation observed; no download method or demo found.
Checked: 2026-11-08

How evidence classes are assigned

Requirements & limits

Prerequisites: A T2 MacBook running Linux with t2linux kernel patches, applesmc, intel_pstate and Python 3 is required.
Prerequisites: GPU limiting additionally requires an unlocked Radeon power cap.
Testing evidence: The author tested MacBookPro16,1; other models remain untested.
License: GPL version 3 or later.

Cite

BibTeX

@misc{t2-cruise-case,
  title = {{t2-cruise: reconstructing Apple SMC power-limit behavior on Linux}},
  howpublished = {\url{https://github.com/flo-coast/t2-cruise}},
  url = {https://github.com/flo-coast/t2-cruise},
  urldate = {2026-11-06},
  note = {Awesome REA entry: \url{https://awesomerea.org/resources/t2-cruise-case/}}
}

Plain text

t2-cruise: reconstructing Apple SMC power-limit behavior on Linux. https://github.com/flo-coast/t2-cruise (accessed 2026-11-06). Awesome REA entry: https://awesomerea.org/resources/t2-cruise-case/

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About this entry

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Primary sources

docs/FINDINGS.md GitHub · flo-coast/t2-cruise · Revision 9d5a7b6
README.md GitHub · flo-coast/t2-cruise · Revision 9d5a7b6