From mboxrd@z Thu Jan 1 00:00:00 1970 From: Otto Wyss Subject: Re: Generic framebuffer driver Date: Sat, 21 Aug 2004 11:02:53 +0200 Sender: linux-fbdev-devel-admin@lists.sourceforge.net Message-ID: <41270FBE.88832BF8@orpatec.ch> References: <41261BF3.19B87A64@orpatec.ch> Reply-To: linux-fbdev-devel@lists.sourceforge.net Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Return-path: Received: from sc8-sf-mx1-b.sourceforge.net ([10.3.1.11] helo=sc8-sf-mx1.sourceforge.net) by sc8-sf-list1.sourceforge.net with esmtp (Exim 4.30) id 1ByRmC-0006nh-R9 for linux-fbdev-devel@lists.sourceforge.net; Sat, 21 Aug 2004 02:03:04 -0700 Received: from mail.xor.ch ([212.55.210.163]) by sc8-sf-mx1.sourceforge.net with smtp (Exim 4.34) id 1ByRmA-0001mk-WC for linux-fbdev-devel@lists.sourceforge.net; Sat, 21 Aug 2004 02:03:04 -0700 Received: from orpatec.ch (217.162.130.125) by mail.xor.ch with MERCUR Mailserver (v4.03.03 NjYtMjMxMS00NjIy) for ; Sat, 21 Aug 2004 11:07:49 +0200 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 Geert Uytterhoeven wrote: > > On Fri, 20 Aug 2004, Otto Wyss wrote: > > I guess this is a common feature of the digital interface and might be > > available for any graphic card/monitor with DVI. Does anyone know for > > sure? If yes this feature would allow to create a generic framebuffer > > It can work for normal monitors as well, using DDC. > Maybe, but then I'm wondering why it only works with DVI in the radeonfb. Has anyone tried a DVI cable with other cards and can post information? > > driver which could be built into the kernel and used right from the > > start. How nice would it be to have a shiny startup screen right from > > the start of Linux! All the startup messages could be shown in a decent > > font (maybe even configurable) and might be surrounded by a nice window. > > What a difference would it make against the current DOS-like look. > > Like what e.g. SUSE does? > Unfortunately I don't have Suse, is there link to an image? Anyway I though more like the Mac, besides the Mac shows that such a solution is possible. > > Do you also think such a generic driver should exist? Is anyone able to > > create it, maybe simply extract it from the radeonfb? > > This generic driver does not exist. And it's not simple to write, since it's > hardware dependent. > > The closest thing to such a generic driver is the existing vesafb. Perhaps on > some cards the BIOS uses DDC as well to find a nice video mode? > The vesafb proves that there is a common base for framebuffer driver. IMO any card having a DVI plug also has to have a common protocol which can be used for a generic driver without being too hardware dependent and also without using BIOS calls. It might be possible to create such a driver for all cards but it shouldn't be too difficult to create it for i.e. 80%. O. Wyss -- See a huge pile of work at "http://wyodesktop.sourceforge.net/" ------------------------------------------------------- SF.Net email is sponsored by Shop4tech.com-Lowest price on Blank Media 100pk Sonic DVD-R 4x for only $29 -100pk Sonic DVD+R for only $33 Save 50% off Retail on Ink & Toner - Free Shipping and Free Gift. http://www.shop4tech.com/z/Inkjet_Cartridges/9_108_r285