From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon@freedesktop.org Subject: [Bug 26891] Radeon KMS fails with inaccessible AtomBIOS on systems with (U)EFI boot Date: Fri, 19 Oct 2012 16:11:26 +0000 Message-ID: References: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============1813880909==" Return-path: Received: from culpepper.freedesktop.org (unknown [131.252.210.165]) by gabe.freedesktop.org (Postfix) with ESMTP id 95AC49EEE3 for ; Fri, 19 Oct 2012 09:11:26 -0700 (PDT) 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 --===============1813880909== Content-Type: multipart/alternative; boundary="1350663086.0DE6b3.8763"; charset="us-ascii" --1350663086.0DE6b3.8763 Date: Fri, 19 Oct 2012 16:11:26 +0000 MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" https://bugs.freedesktop.org/show_bug.cgi?id=26891 --- Comment #45 from Alex Deucher --- (In reply to comment #44) > > Good news, the radeon card is recognised with an EFI stub boot only ! > > But the screens stay black !! (lcd panel and hdmi) ..., X is started because > I heard lightdm ubuntu sound, but all are black, no X and no console frame > buffer. It looks like you have a hybrid system with both an integrated GPU and a discrete GPU. You'll need to switch the mux to switch between the two GPUs (the integrated is probably selected by default). Apple has their own proprietary mux and I'm not sure how well it's supported in Linux. -- You are receiving this mail because: You are the assignee for the bug. --1350663086.0DE6b3.8763 Date: Fri, 19 Oct 2012 16:11:26 +0000 MIME-Version: 1.0 Content-Type: text/html; charset="UTF-8"

Comment # 45 on bug 26891 from 
(In reply to comment #44)

> 
> Good news, the radeon card is recognised with an EFI stub boot only !
> 
> But the screens stay black !! (lcd panel and hdmi) ..., X is started because
> I heard lightdm ubuntu sound, but all are black, no X and no console frame
> buffer.

It looks like you have a hybrid system with both an integrated GPU and a
discrete GPU.  You'll need to switch the mux to switch between the two GPUs
(the integrated is probably selected by default).  Apple has their own
proprietary mux and I'm not sure how well it's supported in Linux.

You are receiving this mail because:
  • You are the assignee for the bug.
--1350663086.0DE6b3.8763-- --===============1813880909== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/dri-devel --===============1813880909==--