Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755996Ab2HTP5t (ORCPT ); Mon, 20 Aug 2012 11:57:49 -0400 Received: from cavan.codon.org.uk ([93.93.128.6]:57459 "EHLO cavan.codon.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753165Ab2HTP5p (ORCPT ); Mon, 20 Aug 2012 11:57:45 -0400 Date: Mon, 20 Aug 2012 16:57:41 +0100 From: Matthew Garrett To: Dave Airlie , Daniel Vetter , David Airlie , dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, Andreas Heider Subject: Re: [RFC PATCH 7/7] drm/pci: Defer initialization of secondary graphics devices until switcheroo is ready Message-ID: <20120820155740.GA30611@srcf.ucam.org> References: <20120806045150.GA23652@thinkpad-t410> <1345476664-22066-1-git-send-email-seth.forshee@canonical.com> <1345476664-22066-8-git-send-email-seth.forshee@canonical.com> <20120820153640.GA29614@srcf.ucam.org> <20120820155633.GF11013@thinkpad-t410> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20120820155633.GF11013@thinkpad-t410> User-Agent: Mutt/1.5.20 (2009-06-14) X-SA-Exim-Connect-IP: X-SA-Exim-Mail-From: mjg59@cavan.codon.org.uk X-SA-Exim-Scanned: No (on cavan.codon.org.uk); SAEximRunCond expanded to false Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 807 Lines: 18 On Mon, Aug 20, 2012 at 10:56:33AM -0500, Seth Forshee wrote: > On Mon, Aug 20, 2012 at 04:36:40PM +0100, Matthew Garrett wrote: > > Won't this break the multiple cards with independent outputs case? > > Yes, if they don't have a switcheroo handler. I only have experience > with one such machine, which had optimus graphics. My recollection is > that it did have a switcheroo handler, which was only capable of > controlling power to the discrete card. So if I have a desktop machine and install two graphics cards? -- Matthew Garrett | mjg59@srcf.ucam.org -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/