From owner-freebsd-mobile@FreeBSD.ORG Thu Apr 27 00:45:17 2006 Return-Path: X-Original-To: freebsd-mobile@freebsd.org Delivered-To: freebsd-mobile@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 8082D16A403; Thu, 27 Apr 2006 00:45:17 +0000 (UTC) (envelope-from vvelox@vvelox.net) Received: from mail07.powweb.com (mail07.powweb.com [66.152.97.40]) by mx1.FreeBSD.org (Postfix) with ESMTP id 3194243D45; Thu, 27 Apr 2006 00:45:17 +0000 (GMT) (envelope-from vvelox@vvelox.net) Received: from vixen42.vulpes (24-119-225-24.cpe.cableone.net [24.119.225.24]) by mail07.powweb.com (Postfix) with ESMTP id 7C70214DF68; Wed, 26 Apr 2006 17:45:14 -0700 (PDT) Date: Wed, 26 Apr 2006 19:46:38 -0500 From: "Z.C.B." To: Greg 'groggy' Lehey Message-ID: <20060426194638.37f64141@vixen42.vulpes> In-Reply-To: <20060426230321.GG33167@wantadilla.lemis.com> References: <20060426064545.GH5914@absaroka.hunter-gatherer.org> <20060426230321.GG33167@wantadilla.lemis.com> X-Mailer: Sylpheed-Claws 2.0.0 (GTK+ 2.8.17; i386-portbld-freebsd5.4) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Cc: Arnt Gulbrandsen , freebsd-mobile@freebsd.org Subject: Re: External monitors/projector X-BeenThere: freebsd-mobile@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Mobile computing with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 27 Apr 2006 00:45:17 -0000 On Thu, 27 Apr 2006 08:33:21 +0930 Greg 'groggy' Lehey wrote: > On Wednesday, 26 April 2006 at 10:40:25 +0200, Arnt Gulbrandsen > wrote: > > Par Leijonhufvud writes: > >> I have a IBM Thinkpad R50e with 5.3 and x-org. Sometimes I want > >> to use a projector as a secondary monitor (mostly with beamer > >> style presentations). I haven't been able to find any good > >> pointers on how to get it to use the external monitor/projector > >> properly. Any suggestions? > >> > >> Ideal would be having the option of either have the screen and > >> the external monitor/projector show the same things _or_ being > >> treated as separate entities... > > > > The former is easy. Press some button on your laptop 2-3 times. > > Specifically, the one marked "CRT/LCD" or some such. On my laptops > (Dell) it's Fn/F8. > > > The latter is sort of impossible, unless you cheat by using one of > > those 802.11 beamers. > > This depends entirely on the display chip set. Microsoft can now > handle dual displays, so more modern laptops are capable of > displaying different things on the LCD panel and the external > connector. It's not always clear whether X can handle it; for > example, I've had a Dell Inspiron 6000 for 6 months now, and I > still can't work out how to get it to drive the external display > correctly. Not tried it with my Toshiba yet, but I assume it works the same as on my desktop. Just treat it like a multihead video card. The hard part with X is getting it to only display stuff on the external screen when something is connected. > Note that there are many other issues with external monitors, and > even more with projectors: many projectors are much more finicky > about signal timing, and will just shut off if they don't like what > they're given. Again, the Microsoft world has normalized this sort > of thing. If you're planning to use projectors a lot (for > presentations, for example), it's a good idea to mimic Microsoft > timings. X should be able to fetch this using DDC.