From mboxrd@z Thu Jan 1 00:00:00 1970 From: Benjamin Herrenschmidt Subject: Re: VESA, EDID & flat panels Date: Mon, 10 Oct 2005 15:50:46 +1000 Message-ID: <1128923447.17365.117.camel@gaston> References: <1128380013.8267.125.camel@gaston> <8a0c36780510031618m48c55f45u648d867bcf0130d2@mail.gmail.com> <1128397436.31063.0.camel@gaston> <434220D0.3020101@gmail.com> <1128407961.31063.50.camel@gaston> <43423666.8090001@gmail.com> <1128415836.6291.12.camel@gaston> <8a0c36780510040535g16a3074p66384d8b07d03ea1@mail.gmail.com> Reply-To: linux-fbdev-devel@lists.sourceforge.net Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Return-path: Received: from sc8-sf-mx2-b.sourceforge.net ([10.3.1.92] helo=mail.sourceforge.net) by sc8-sf-list1.sourceforge.net with esmtp (Exim 4.30) id 1EOqbV-0004Uf-IA for linux-fbdev-devel@lists.sourceforge.net; Sun, 09 Oct 2005 22:53:41 -0700 Received: from gate.crashing.org ([63.228.1.57]) by mail.sourceforge.net with esmtps (TLSv1:AES256-SHA:256) (Exim 4.44) id 1EOqbb-0001PY-GP for linux-fbdev-devel@lists.sourceforge.net; Sun, 09 Oct 2005 22:53:48 -0700 Received: from gaston (localhost [127.0.0.1]) by gate.crashing.org (8.12.8/8.12.8) with ESMTP id j9A5igWG032577 for ; Mon, 10 Oct 2005 00:44:43 -0500 In-Reply-To: <8a0c36780510040535g16a3074p66384d8b07d03ea1@mail.gmail.com> Sender: linux-fbdev-devel-admin@lists.sourceforge.net Errors-To: linux-fbdev-devel-admin@lists.sourceforge.net List-Unsubscribe: , List-Id: List-Post: List-Help: List-Subscribe: , List-Archive: Content-Type: text/plain; charset="us-ascii" To: linux-fbdev-devel@lists.sourceforge.net On Tue, 2005-10-04 at 07:35 -0500, Richard Smith wrote: > > So I wonder how widespread really is that EEDID stuff... I'm afraid the > > reason a lot of monitors come with a windows install CD is that they do > > _not_ provide those infos via EDID, but windows has a database with > > per-monitor infos (as Apple actually has in OS X) and we should probably > > do something similar. (but not in the kernel) > > Our experience agrees with you that the EEDID stuff is not well used. > We make some LCD driver products and I'm pretty sure we didn't include > the EEDID info. > > I gave the specs a quick look and I don't see anything in (thats > obvious) there that would allow you to see if the panel is 666 or 888. > The specs are somewhat less than clear in several cases so I'll be > happy to review any sections closer if you think one might be a > possibility. Look at the EDID EXTENSIONS spec. Extension 0x40 contains the panel component bit definition iirc. I found so far only one monitor that implemented that extended block (the Apple 23" Cinema HD display) but the content seem to be junk =P Ben. ------------------------------------------------------- This SF.Net email is sponsored by: Power Architecture Resource Center: Free content, downloads, discussions, and more. http://solutions.newsforge.com/ibmarch.tmpl