From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon@bugzilla.kernel.org Subject: [Bug 66791] Radeon fails to find vbios on macbook pro 2, 1 (2007) for x1600 using kernel EFI stub Date: Mon, 09 Dec 2013 16:03:35 +0000 Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by gabe.freedesktop.org (Postfix) with ESMTP id BD732FA326 for ; Mon, 9 Dec 2013 08:03:45 -0800 (PST) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id EC22520270 for ; Mon, 9 Dec 2013 16:03:40 +0000 (UTC) Received: from bugzilla1.web.kernel.org (bugzilla1.web.kernel.org [172.20.200.51]) by mail.kernel.org (Postfix) with ESMTP id 775FA202E9 for ; Mon, 9 Dec 2013 16:03:35 +0000 (UTC) In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: dri-devel-bounces+sf-dri-devel=m.gmane.org@lists.freedesktop.org Errors-To: dri-devel-bounces+sf-dri-devel=m.gmane.org@lists.freedesktop.org To: dri-devel@lists.freedesktop.org List-Id: dri-devel@lists.freedesktop.org https://bugzilla.kernel.org/show_bug.cgi?id=66791 Alex Deucher changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |alexdeucher@gmail.com --- Comment #1 from Alex Deucher --- Apple's EFI implementation does not provide a way to fetch the vbios after the OS takes over. IIRC, you need a special bootloader and kernel support for fetching the vbios before passing control to the OS. I think Matthew Garret had patches to support this at some point, I'm not sure what their status is. The other option is to boot using the legacy bios interface (not EFI). -- You are receiving this mail because: You are watching the assignee of the bug.