From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757524AbZEDWOw (ORCPT ); Mon, 4 May 2009 18:14:52 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752640AbZEDWOn (ORCPT ); Mon, 4 May 2009 18:14:43 -0400 Received: from outbound-mail-31.bluehost.com ([69.89.18.151]:55637 "HELO outbound-mail-31.bluehost.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1752520AbZEDWOm (ORCPT ); Mon, 4 May 2009 18:14:42 -0400 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=default; d=virtuousgeek.org; h=Received:Date:From:To:Cc:Subject:Message-ID:In-Reply-To:References:X-Mailer:Mime-Version:Content-Type:Content-Transfer-Encoding:X-Identified-User; b=ooE/5oDpFw9dlXQC/e6FtkweWKTdc1eJY0pKV2xKaDA/hYWU4oRgFUeR5F1k4xclC4b2GUZ3h0wasKBvt/UMJu/v3wQ1botEDOaYGfbiy/FMiHTKCRHqbCI59NFPpHa3; Date: Mon, 4 May 2009 15:14:39 -0700 From: Jesse Barnes To: Jesse Barnes Cc: Jarod Wilson , dri-devel@lists.sourceforge.net, xorg-devel@lists.x.org, linux-kernel@vger.kernel.org, notting@redhat.com, Zhenyu Wang , Fu Michael Subject: Re: [PATCH] drm: ignore LVDS on intel graphics systems that lie about having it Message-ID: <20090504151439.0a10ec1e@hobbes> In-Reply-To: <20090406103917.592fee0f@hobbes> References: <200904061011.26389.jarod@redhat.com> <20090406095216.4361d128@hobbes> <200904061329.53824.jarod@redhat.com> <20090406103917.592fee0f@hobbes> X-Mailer: Claws Mail 3.7.1 (GTK+ 2.16.1; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Identified-User: {10642:box514.bluehost.com:virtuous:virtuousgeek.org} {sentby:smtp auth 75.111.28.251 authed with jbarnes@virtuousgeek.org} Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, 6 Apr 2009 10:39:17 -0700 Jesse Barnes wrote: > On Mon, 6 Apr 2009 13:29:53 -0400 > Jarod Wilson wrote: > > > On Monday 06 April 2009 12:52:16 Jesse Barnes wrote: > > > On Mon, 6 Apr 2009 10:11:25 -0400 > > > Jarod Wilson wrote: > > > > > > > There are a number of small form factor desktop systems with > > > > Intel mobile graphics chips that lie and say they have an LVDS. > > > > With kernel mode-setting, this becomes a problem, and makes > > > > native resolution boot go haywire -- for example, my Dell > > > > Studio Hybrid, hooked to a 1920x1080 display claims to have a > > > > 1024x768 LVDS, and the resulting graphical boot on the > > > > 1920x1080 display uses only the top left 1024x768, and > > > > auto-configured X will end up only 1024x768 as well. With this > > > > change, graphical boot and X both do 1920x1080 as expected. > > > > > > > > Note that we're simply embracing and extending the early > > > > bail-out code in place for the Mac Mini here. The xorg intel > > > > driver uses pci subsystem device and vendor id for matching, > > > > while we're using dmi lookups here. The MSI addition is > > > > courtesy of and tested by Bill Nottingham. > > > > > > > > One minor issue... Current Fedora rawhide, video playback using > > > > Xv makes X go off into the weeds with this patch added, but > > > > that's a bug elsewhere, still confident this patch DTRT. > > > > > > > > Signed-off-by: Jarod Wilson > > > > Tested-by: Bill Nottingham > > > > > > The 2D driver has a similar set of quirks, but since we started > > > that list we've found that the VBIOS should contain a pretty > > > reliable table indicating which outputs are available, including > > > LVDS. I think if we can figure out how to parse it reliably > > > (accounting for VBIOS versioning and structure size changes) we > > > shouldn't need this patch. If we can't get that done in time for > > > 2.6.30 though I'm all for including this. > > > > Sounds like a plan to me. Either way, would this patch still make > > sense for submission to the 2.6.29.x stable series? I've already > > tacked it onto the Fedora 2.6.29 kernel builds, fwiw. > > Yeah would be fine for 2.6.29 as far as I'm concerned, but there's an > "upstream first" policy for the stable series that might get in the > way... Ok we've failed on this one, so we should go ahead an add the LVDS quirk. Can you resend this to Eric so it gets into 2.6.30-final? Thanks, -- Jesse Barnes, Intel Open Source Technology Center