From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon@freedesktop.org Subject: [Bug 59431] [snb efi gmux] imac 12,1 blank screen upon booting Date: Wed, 23 Jan 2013 22:01:35 +0000 Message-ID: References: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============0697716937==" Return-path: Received: from culpepper.freedesktop.org (unknown [131.252.210.165]) by gabe.freedesktop.org (Postfix) with ESMTP id 39EA4E6921 for ; Wed, 23 Jan 2013 14:01:35 -0800 (PST) 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 --===============0697716937== Content-Type: multipart/alternative; boundary="1358978495.D3710e0.4054"; charset="us-ascii" --1358978495.D3710e0.4054 Date: Wed, 23 Jan 2013 22:01:35 +0000 MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" https://bugs.freedesktop.org/show_bug.cgi?id=59431 --- Comment #24 from Seth Forshee --- Created attachment 73542 --> https://bugs.freedesktop.org/attachment.cgi?id=73542&action=edit Add quirk to efifb for iMac 12,1 Here's a patch to try. But after some more poking around I'm wondering why this is needed. The kernel seems to get the information about the GOP framebuffer for most recent Macs without quirking, so it makes me wonder why it doesn't work on this machine. Just to check one obvious point, are you either running with the stock Ubuntu kernels or else with CONFIG_FB_EFI=y? An easy way to verify this is to boot the machine and run 'grep CONFIG_FB_EFI /boot/config-$(uname -r)'. This should output 'CONFIG_FB_EFI=y' if your kernel is configured to include the EFI framebuffer support. -- You are receiving this mail because: You are the assignee for the bug. --1358978495.D3710e0.4054 Date: Wed, 23 Jan 2013 22:01:35 +0000 MIME-Version: 1.0 Content-Type: text/html; charset="UTF-8"

Comment # 24 on bug 59431 from 
Created attachment 73542 [details] [review]
Add quirk to efifb for iMac 12,1

Here's a patch to try. But after some more poking around I'm wondering why this
is needed. The kernel seems to get the information about the GOP framebuffer
for most recent Macs without quirking, so it makes me wonder why it doesn't
work on this machine.

Just to check one obvious point, are you either running with the stock Ubuntu
kernels or else with CONFIG_FB_EFI=y? An easy way to verify this is to boot the
machine and run 'grep CONFIG_FB_EFI /boot/config-$(uname -r)'. This should
output 'CONFIG_FB_EFI=y' if your kernel is configured to include the EFI
framebuffer support.

You are receiving this mail because:
  • You are the assignee for the bug.
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