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From: Lukas Wunner <lukas@wunner.de>
To: Aditya Garg <gargaditya08@live.com>
Cc: Ard Biesheuvel <ardb@kernel.org>,
	"linux-efi@vger.kernel.org" <linux-efi@vger.kernel.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	Hans de Goede <hdegoede@redhat.com>,
	Kerem Karabay <kekrby@gmail.com>,
	Orlando Chamberlain <orlandoch.dev@gmail.com>,
	"sharpenedblade@proton.me" <sharpenedblade@proton.me>
Subject: Re: [PATCH v3 0/2] efi/x86: Call set_os() protocol on dual GPU Macs
Date: Wed, 24 Jul 2024 18:28:17 +0200	[thread overview]
Message-ID: <ZqEroUgkB-J-JG4D@wunner.de> (raw)
In-Reply-To: <MA0P287MB0217AA8547F79B36B754A7B2B8AA2@MA0P287MB0217.INDP287.PROD.OUTLOOK.COM>

On Wed, Jul 24, 2024 at 04:21:03PM +0000, Aditya Garg wrote:
> https://www.phoronix.com/forums/forum/software/general-linux-open-source/1479158-linux-6-11-efi-will-fake-that-it-s-booting-apple-macos-to-fix-some-dual-gpu-macs?p=1479205#post1479205
> 
> By looking at this post, it seems to affect non T2 Macs as well.

Disabling iGPU if dGPU is present was a behavior that existed well
before T2 Macs, yes.  That affected MacBook Pros from Haswell onward.

However the question is since when iGPU is disabled if an eGPU is present.
I had never heard of this before.  It would be good to have more datapoints
to come up with a quirk that's as narrowly applied as possible to avoid
regressions.

Thanks,

Lukas

  reply	other threads:[~2024-07-24 16:28 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-07-01 14:09 [PATCH v3 0/2] efi/x86: Call set_os() protocol on dual GPU Macs Ard Biesheuvel
2024-07-01 14:09 ` [PATCH v3 1/2] efistub/x86: Enable SMBIOS protocol handling for x86 Ard Biesheuvel
2024-07-01 14:09 ` [PATCH v3 2/2] x86/efistub: Call Apple set_os protocol on dual GPU Intel Macs Ard Biesheuvel
2024-07-01 14:17 ` [PATCH v3 0/2] efi/x86: Call set_os() protocol on dual GPU Macs Lukas Wunner
2024-07-01 19:42 ` Aditya Garg
2024-07-17 16:35   ` Aditya Garg
2024-07-17 16:46     ` Ard Biesheuvel
2024-07-17 16:52       ` Aditya Garg
2024-07-17 18:27         ` Sharpened Blade
2024-07-17 18:58     ` Lukas Wunner
2024-07-23 16:25       ` Aditya Garg
2024-07-23 16:26         ` Aditya Garg
2024-07-24 16:01         ` Lukas Wunner
2024-07-24 16:21           ` Aditya Garg
2024-07-24 16:28             ` Lukas Wunner [this message]
2024-07-24 16:30               ` Aditya Garg
2024-07-24 16:26           ` Aditya Garg
2024-07-24 16:31             ` Lukas Wunner
2024-07-24 16:34               ` Aditya Garg
2024-07-25 12:42               ` Ard Biesheuvel
2024-07-25 12:58                 ` Aditya Garg
2024-07-25 12:39             ` Ard Biesheuvel
2024-07-25 12:55               ` Aditya Garg
2024-07-28 12:03           ` Orlando Chamberlain
2024-07-29  7:27             ` Ard Biesheuvel
2024-07-29  7:46               ` Aditya Garg

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