From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Ralf Angeli Newsgroups: gmane.emacs.devel Subject: Re: display-mm-width return value off on Windows Date: Sun, 09 Jul 2006 09:36:07 +0200 Message-ID: <87bqrzkz6g.fsf@neutrino.caeruleus.net> References: <87slldpd8s.fsf@neutrino.caeruleus.net> <44AFB1E1.20906@student.lu.se> <85hd1rwxao.fsf@lola.goethe.zz> NNTP-Posting-Host: main.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Trace: sea.gmane.org 1152430598 3470 80.91.229.2 (9 Jul 2006 07:36:38 GMT) X-Complaints-To: usenet@sea.gmane.org NNTP-Posting-Date: Sun, 9 Jul 2006 07:36:38 +0000 (UTC) Cc: Lennart Borgman , Eli Zaretskii , emacs-devel@gnu.org Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Sun Jul 09 09:36:35 2006 Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([199.232.76.165]) by ciao.gmane.org with esmtp (Exim 4.43) id 1FzTqD-0001Rl-Cs for ged-emacs-devel@m.gmane.org; Sun, 09 Jul 2006 09:36:33 +0200 Original-Received: from localhost ([127.0.0.1] helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1FzTqC-0001n9-R7 for ged-emacs-devel@m.gmane.org; Sun, 09 Jul 2006 03:36:32 -0400 Original-Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1FzTpz-0001n4-SC for emacs-devel@gnu.org; Sun, 09 Jul 2006 03:36:19 -0400 Original-Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1FzTpy-0001ms-MO for emacs-devel@gnu.org; Sun, 09 Jul 2006 03:36:19 -0400 Original-Received: from [199.232.76.173] (helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1FzTpy-0001mp-IX for emacs-devel@gnu.org; Sun, 09 Jul 2006 03:36:18 -0400 Original-Received: from [212.227.126.183] (helo=moutng.kundenserver.de) by monty-python.gnu.org with esmtp (Exim 4.52) id 1FzTqg-0008I1-8k; Sun, 09 Jul 2006 03:37:02 -0400 Original-Received: from [84.165.72.65] (helo=neutrino.caeruleus.net) by mrelayeu.kundenserver.de (node=mrelayeu3) with ESMTP (Nemesis), id 0MKxQS-1FzTpn4AE3-0008P4; Sun, 09 Jul 2006 09:36:08 +0200 Original-To: Jason Rumney X-Provags-ID: kundenserver.de abuse@kundenserver.de login:abf9ffac21f8345504ac40c53d3b40ba X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Original-Sender: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.devel:56839 Archived-At: * Jason Rumney (2006-07-09) writes: > You're right, DDC is supported for analog monitors also. So I wonder > why 320mm was reported as the width for all 3 of my monitors. It is > about right for the 15.1" and 14.1" widescreen, but the 19" should be > closer to 400mm. I guess we won't find out on a non-free system where we cannot look at the code. > In case anyone wants to investigate why the numbers are off (is > Windows using what the monitor reports?), there's a program to read > the data from the monitor independantly of the OS/video drivers here: > > http://john.fremlin.de/programs/linux/read-edid/ > > It fails on my laptop with the 15.1" display when run from Windows XP, > however. I didn't install read-edid, but xdpyinfo run on GNU/Linux reports wrong values for my notebook: 474x356mm That's why I normally set the correct value in xorg.conf with the DisplaySize directive. -- Ralf