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Apple Retina MacBook requires secret EFI magic to enable integrated GPU!

Bits inside by René Rebe

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  • Recommended by 1 person: 1 on Lobsters.
  • Presented by René Rebe
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  • An opinion. It argues one side of a question engineers disagree on.

Intermediate. Assumes working knowledge.

7.7K views9 years ago1 recommendation

Systems programmingHardwareOperating systemsLinux

René Rebe explains how Apple MacBooks disable the integrated Intel GPU when not running macOS and how to unlock it using EFI commands.

Turns out some Apple MacBooks disable integrated Intel GPU if not running macOS. Secret magic protocol handshake required to unlock the iGPU to save energy, maximize battery, or have the more feature rich open source Intel Mesa driver for OpenGL, OpenCL, Vulkan, ..! t2sde.org/hardware/portable/Apple/rMacBookPro/ You probably want to think twice before you buy into these non-standard Macs that can cause so much headache and wasted time !! services.exactcode.de/amzn.cgi?index=electronics&keywords=Ap…

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1 person recommends this

What people say. Recommended for its technical explanation of Apple's proprietary EFI behavior and how to bypass it on Linux.

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