Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932310AbWEXOtE (ORCPT ); Wed, 24 May 2006 10:49:04 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932316AbWEXOtE (ORCPT ); Wed, 24 May 2006 10:49:04 -0400 Received: from nz-out-0102.google.com ([64.233.162.200]:6196 "EHLO nz-out-0102.google.com") by vger.kernel.org with ESMTP id S932310AbWEXOtC convert rfc822-to-8bit (ORCPT ); Wed, 24 May 2006 10:49:02 -0400 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=UgFNAS/RIL/AxRpFINRtLBSylP7kgXuWJwCJeWITWULFsxf8UybytvnHmOddvQ62STpgur1nFsFUgLF18NfvVTr0e+gjNB3O8ZoXlzNK6x9VNHFrS886q/0FQ+P+IyA8LJObaowpKy0Zz9nThJixgJ9Db47ookg+4wT963noyCY= Message-ID: <9e4733910605240749r1ce9e9fehcfffb2f2e3aeab60@mail.gmail.com> Date: Wed, 24 May 2006 10:49:01 -0400 From: "Jon Smirl" To: "Alexander E. Patrakov" Subject: Re: OpenGL-based framebuffer concepts Cc: "Helge Hafting" , "D. Hazelton" , "Manu Abraham" , "linux cbon" , Valdis.Kletnieks@vt.edu, linux-kernel@vger.kernel.org In-Reply-To: <447465C6.3090501@ums.usu.ru> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII; format=flowed Content-Transfer-Encoding: 7BIT Content-Disposition: inline References: <20060519224056.37429.qmail@web26611.mail.ukl.yahoo.com> <44700ACC.8070207@gmail.com> <200605230048.14708.dhazelton@enter.net> <9e4733910605231017g146e16dfnd61eb22a72bd3f5f@mail.gmail.com> <6896241F-3389-4B20-9E42-3CCDDBFDD312@mac.com> <44740533.7040702@aitel.hist.no> <447465C6.3090501@ums.usu.ru> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 865 Lines: 19 On 5/24/06, Alexander E. Patrakov wrote: > * Have a method in the framebuffer driver for clearing the screen and setting > a known good mode, for the Linux equivalent of a "blue screen of death" You can't change the mode, instead you have to track it and use the one that is already set. Changing the mode on a lot of cards that we don't have docs for requires making BIOS calls using VM86. VM86 only runs from user space and user space may be dead when you want to print. WIndows can take a different approach since they have access to the video hardware docs. -- Jon Smirl jonsmirl@gmail.com - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/