From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 44A0CC433EF for ; Sat, 13 Nov 2021 11:47:12 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 0857660E75 for ; Sat, 13 Nov 2021 11:47:11 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 0857660E75 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=bugzilla.kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 546086FC32; Sat, 13 Nov 2021 11:47:10 +0000 (UTC) Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by gabe.freedesktop.org (Postfix) with ESMTPS id 5359A6FC31 for ; Sat, 13 Nov 2021 11:47:08 +0000 (UTC) Received: by mail.kernel.org (Postfix) with ESMTPS id D7FED61156 for ; Sat, 13 Nov 2021 11:47:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1636804027; bh=RhWkYX5IQtKvmeXhK1oV+Y1U7lndiH799x4p0LXarmo=; h=From:To:Subject:Date:From; b=nkkmi1QfnCPEBUfkbh8kpZuzDCOGEOfFK5FxLV/F0UN25Z8N6kVfBUD1dXLK0QGtU RCHdFKtGq8Dr00F3WxNhAAzCEfMzMerYIOZHqAgawZp3F4Gb52vRLraVA0imwcNodL 1T3PRvXPhiMX0Ayj0tR9r5zCqoblptzvBklwlizJ1oDHzJmgEK+gqSYiGGtZWUfNMs SV2Wmucz/R5yE38hEIwEjxLho6K9pxeZO2h6ZvVP/wANugnaKvHUjmpIe9q2Tu8d4A mzUza8Wua46Elf6GZNr830e4qwafYPorElHaq0nVQAKZuRkI80EFUfrDhzQBESiH5x mJYf/KNfeV7IQ== From: bugzilla-daemon@bugzilla.kernel.org To: dri-devel@lists.freedesktop.org Subject: [Bug 215003] New: apple_gmux fails to initialize and iGPU unclaimed on MacBook Pro 16" 2019 Date: Sat, 13 Nov 2021 11:47:07 +0000 X-Bugzilla-Reason: None X-Bugzilla-Type: new X-Bugzilla-Watch-Reason: AssignedTo drivers_video-dri@kernel-bugs.osdl.org X-Bugzilla-Product: Drivers X-Bugzilla-Component: Video(DRI - non Intel) X-Bugzilla-Version: 2.5 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: dreifachstein@gmail.com X-Bugzilla-Status: NEW X-Bugzilla-Resolution: X-Bugzilla-Priority: P1 X-Bugzilla-Assigned-To: drivers_video-dri@kernel-bugs.osdl.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: bug_id short_desc product version cf_kernel_version rep_platform op_sys cf_tree bug_status bug_severity priority component assigned_to reporter cf_regression Message-ID: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: https://bugzilla.kernel.org/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" https://bugzilla.kernel.org/show_bug.cgi?id=3D215003 Bug ID: 215003 Summary: apple_gmux fails to initialize and iGPU unclaimed on MacBook Pro 16" 2019 Product: Drivers Version: 2.5 Kernel Version: 5.14.y Hardware: Intel OS: Linux Tree: Mainline Status: NEW Severity: normal Priority: P1 Component: Video(DRI - non Intel) Assignee: drivers_video-dri@kernel-bugs.osdl.org Reporter: dreifachstein@gmail.com Regression: No MBP2019 can be tricked into booting with the iGPU enabled (https://github.com/0xbb/apple_set_os.efi) but i915 does not claim the iGPU after booting. I have tracked down the direct cause but do not how to fix it. When booting with the iGPU enabled `apple_gmux_present` returns true becaus= e=20 GMUX_ACPI_HID ("APP000B") is present in the ACPI tables.=20 Because apple_gmux fails to initialize with "Failed to find gmux I/O resour= ce" and never registers with vgaswitcheroo the i915 probe routine always bails = out after `vga_switcheroo_client_probe_defer` lefting the device unclaimed. --=20 You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug.=