From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751969Ab1GYNdK (ORCPT ); Mon, 25 Jul 2011 09:33:10 -0400 Received: from mail-wy0-f174.google.com ([74.125.82.174]:48062 "EHLO mail-wy0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751356Ab1GYNdI (ORCPT ); Mon, 25 Jul 2011 09:33:08 -0400 From: Peter Korsgaard To: Alan Cox Cc: Luke Kenneth Casson Leighton , debian-arm@lists.debian.org, linux-kernel@vger.kernel.org, Wookey Subject: Re: dynamic LCD support for "embedded" systems References: <20110725131701.112e635e@lxorguk.ukuu.org.uk> <20110725140610.47fdda27@lxorguk.ukuu.org.uk> Date: Mon, 25 Jul 2011 15:32:57 +0200 In-Reply-To: <20110725140610.47fdda27@lxorguk.ukuu.org.uk> (Alan Cox's message of "Mon, 25 Jul 2011 14:06:10 +0100") Message-ID: <87y5zmqyd2.fsf@macbook.be.48ers.dk> User-Agent: Gnus/5.110009 (No Gnus v0.9) Emacs/22.3 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org >>>>> "Alan" == Alan Cox writes: >> DVI monitor), and that EDID data just gets passed-through via the VGA >> IC. so it's all the same stuff... so what's the damn difference >> between a system with a VGA monitor and a system with the exact same >> LCD panel *from* that VGA monitor, ehn? :) ok, rhetorical question. Alan> I'm not convinced it is the same stuff for various reaosns and bits of Alan> historical bug fixing and observation. Indeed. Often, raw LVDS panels just have power, LVDS and (potentially) backlight signals - No EDID. eDP panels might be different though, and some newer LVDS panels do have a DDC channel with EDID. -- Bye, Peter Korsgaard