Bug#781843: Patch: Add apple_set_os command neede for Macbook Pro 11, 3 (Late 2013)

Bruno Bierbaumer list at bierbaumer.net
Fri Apr 24 13:09:53 UTC 2015


Hallo Thibaut,
for the MacbookPro 11,x it also true for the EFI mode.
They differ to the older models, because the Intel chip is also hidden
in the EFI mode and not only in the BIOS compatibility mode.

Regards,
Bruno

On 2015-04-24 15:06, Thibaut Paumard wrote:
> On Fri, 03 Apr 2015 20:02:33 +0200 Bruno Bierbaumer
> <list at bierbaumer.net> wrote:
>> Package: grub-efi-amd64
>> Version: 2.02~beta2-22
>> Severity: wishlist
>> Tags: patch
>>
>> Dear Debian folks,
>> the current generation of dual GPU Macbook Pros turn off the integrated Intel GPU when any other OS than Mac OS X is booted.
>> This works by MAC OS X identifying itself as a custom EFI protocol.
>>
>> The supplied patch adds a command (apple_set_os) that fakes this OS identification to make all the hardware accessible to Linux.
>> So it's possible to have much better battery life and driver support by switching to the power saving Intel GPU instead of the discrete Nvidia GPU.
>>
> 
> Dear Bruno,
> 
> Is this true (only) when booting Linux in BIOS compatibility mode, or
> also in EFI mode? On older Macbooks, the Intel chip is hidden in BIOS
> mode, but not in EFI mode.
> 
> Kind regards, Thibaut.
> 



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