From owner-freebsd-current@FreeBSD.ORG Mon Sep 15 23:09:00 2008 Return-Path: Delivered-To: freebsd-current@FreeBSD.ORG Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id A8C92106566B for ; Mon, 15 Sep 2008 23:09:00 +0000 (UTC) (envelope-from delphij@delphij.net) Received: from tarsier.delphij.net (unknown [IPv6:2001:470:1f03:2c9::2]) by mx1.freebsd.org (Postfix) with ESMTP id 5123C8FC16 for ; Mon, 15 Sep 2008 23:09:00 +0000 (UTC) (envelope-from delphij@delphij.net) Received: from tarsier.geekcn.org (tarsier.geekcn.org [211.166.10.233]) (using TLSv1 with cipher ADH-CAMELLIA256-SHA (256/256 bits)) (No client certificate requested) by tarsier.delphij.net (Postfix) with ESMTPS id 80B3628449 for ; Tue, 16 Sep 2008 07:08:59 +0800 (CST) Received: from localhost (tarsier.geekcn.org [211.166.10.233]) by tarsier.geekcn.org (Postfix) with ESMTP id 124FEF6547D; Tue, 16 Sep 2008 07:08:59 +0800 (CST) X-Virus-Scanned: amavisd-new at geekcn.org Received: from tarsier.geekcn.org ([211.166.10.233]) by localhost (mail.geekcn.org [211.166.10.233]) (amavisd-new, port 10024) with ESMTP id K0Q6rQDm92JQ; Tue, 16 Sep 2008 07:08:54 +0800 (CST) Received: from charlie.delphij.net (71.5.7.139.ptr.us.xo.net [71.5.7.139]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by tarsier.geekcn.org (Postfix) with ESMTPSA id 968C4F06CC5; Tue, 16 Sep 2008 07:08:52 +0800 (CST) DomainKey-Signature: a=rsa-sha1; s=default; d=delphij.net; c=nofws; q=dns; h=message-id:date:from:reply-to:organization:user-agent: mime-version:to:subject:references:in-reply-to:x-enigmail-version:openpgp: content-type:content-transfer-encoding; b=WOg+pENXqSYOs/N0Gfv5VsmjPG7Ga4clSVc3OE+OIy3YTM/wAG7tC1qsxQ7lMGyYx z4KrZ1AgvzwdBt5MppAPg== Message-ID: <48CEEB00.5030703@delphij.net> Date: Mon, 15 Sep 2008 16:08:48 -0700 From: Xin LI Organization: The FreeBSD Project User-Agent: Thunderbird 2.0.0.16 (X11/20080725) MIME-Version: 1.0 To: freebsd-current@FreeBSD.ORG, unixmania@gmail.com, delphij@delphij.net References: <200809151753.m8FHr9Gi083627@lurza.secnetix.de> In-Reply-To: <200809151753.m8FHr9Gi083627@lurza.secnetix.de> X-Enigmail-Version: 0.95.7 OpenPGP: id=18EDEBA0; url=http://www.delphij.net/delphij.asc Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Cc: Subject: Re: Why VESA and DPMS are available only for i386? X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: d@delphij.net List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 15 Sep 2008 23:09:00 -0000 -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Oliver Fromme wrote: > Carlos A. M. dos Santos wrote: > > Oliver Fromme wrote: > > > There's a third way, and I think this is the easiest one. > > > This is what the Linux VESA framebuffer driver does. > > > Let the boot loader (which executes in 32bit mode) switch > > > to the desired video mode, enable a linear frame buffer > > > (which is supported since VBE 2.0) and pass the address > > > of the frame buffer to the 64bit kernel. Then the kernel > > > would not need to call any VESA functions at all, thus > > > eliminating all of the above problems. The drawback is > > > that you can't change the console video mode anymore once > > > the kernel is booted, i.e. you have to reboot if you want > > > a different mode. > > > > This can also lead to a situation where the kernel can not restore the > > video controller to a known mode if the X server crashes or when the > > user attempts to switch from X to the "text mode" console. > > Why would you need to use VESA modes for syscons if you > install and run Xorg anyway? In order to be able to give more information upon startup? I always think that the Mac OS's pre-GUI message helpful, but they don't return to console mode anyway. Cheers, - -- Xin LI http://www.delphij.net/ FreeBSD - The Power to Serve! -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.9 (FreeBSD) iEYEARECAAYFAkjO6wAACgkQi+vbBBjt66BSxQCfYh+RtmsHBUtTGouQkVIHvMqa LmUAoLn9sHd4QcgilmGdW02qlO6PULTt =rxjN -----END PGP SIGNATURE-----