From: bugzilla-daemon@bugzilla.kernel.org
To: dri-devel@lists.freedesktop.org
Subject: [Bug 215003] apple_gmux fails to initialize and iGPU unclaimed on MacBook Pro 16" 2019
Date: Sun, 14 Nov 2021 08:28:47 +0000 [thread overview]
Message-ID: <bug-215003-2300-VqC9FYsZv5@https.bugzilla.kernel.org/> (raw)
In-Reply-To: <bug-215003-2300@https.bugzilla.kernel.org/>
https://bugzilla.kernel.org/show_bug.cgi?id=215003
--- Comment #7 from Lukas Wunner (lukas@wunner.de) ---
The gpu-switch utility I've linked to above has macOS and Windows versions. You
could try using it from one of those OSes to switch to the iGPU on next boot,
then boot into Linux.
Perhaps you could add a few debug printk's to find out which runtime services
call causes the crash.
In summary, there are two issues here: The EFI issue which prevents you from
switching to the iGPU on Linux, and the GMUX incompatibility. You may want to
open a separate bug for the former and assign it to the "EFI" Product so that
Ard Biesheuvel and others can take a look.
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prev parent reply other threads:[~2021-11-14 8:28 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-11-13 11:47 [Bug 215003] New: apple_gmux fails to initialize and iGPU unclaimed on MacBook Pro 16" 2019 bugzilla-daemon
2021-11-13 11:49 ` [Bug 215003] " bugzilla-daemon
2021-11-13 13:04 ` bugzilla-daemon
2021-11-14 6:08 ` bugzilla-daemon
2021-11-14 6:12 ` bugzilla-daemon
2021-11-14 7:33 ` bugzilla-daemon
2021-11-14 8:11 ` bugzilla-daemon
2021-11-14 8:28 ` bugzilla-daemon [this message]
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