Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261290AbVBJVVN (ORCPT ); Thu, 10 Feb 2005 16:21:13 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261322AbVBJVVN (ORCPT ); Thu, 10 Feb 2005 16:21:13 -0500 Received: from mail.scitechsoft.com ([63.195.13.67]:935 "EHLO mail.scitechsoft.com") by vger.kernel.org with ESMTP id S261290AbVBJVVJ (ORCPT ); Thu, 10 Feb 2005 16:21:09 -0500 Message-ID: <420BD03A.3030501@scitechsoft.com> Date: Thu, 10 Feb 2005 13:20:58 -0800 From: Kendall Bennett User-Agent: Mozilla Thunderbird 1.0 (Windows/20041206) X-Accept-Language: en-us, en MIME-Version: 1.0 To: Matthew Garrett CC: Jon Smirl , =?ISO-8859-1?Q?Ville_Syrj=E4l=E4?= , Bill Davidsen , Alan Cox , Pavel Machek , ncunningham@linuxmail.org, Carl-Daniel Hailfinger , ACPI List , Linux Kernel Mailing List Subject: Re: [RFC] Reliable video POSTing on resume References: <1107695583.14847.167.camel@localhost.localdomain> <420BB267.8060108@tmr.com> <20050210192554.GA15726@sci.fi> <1108066096.4085.69.camel@tyrosine> <9e473391050210121756874a84@mail.gmail.com> <1108067388.4085.74.camel@tyrosine> <9e47339105021012341c94c441@mail.gmail.com> <420BC814.4050102@scitechsoft.com> <1108069596.4085.78.camel@tyrosine> In-Reply-To: <1108069596.4085.78.camel@tyrosine> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1354 Lines: 36 Matthew Garrett said the following on 2/10/2005 1:06 PM: > On Thu, 2005-02-10 at 12:46 -0800, Kendall Bennett wrote: > > >>So perhaps this problem is something similar? > > > I don't think so - if I dd out of ROM, I get something that looks like a > video BIOS (and, indeed, I can make VBE calls to and from it). The > problem is jumping to c000:0003 and executing - this has the effect of > turning off the backlight and giving an illegal instruction error > (I /think/ - I may be getting the machine I have here confused with one > a tester has...) Laptops are a little different as they will make calls from the Video BIOS into the system BIOS, so you need to make sure that the system BIOS is also available in the execution environment. So if you are using an x86 emulator, you need to make sure the system BIOS is mapped into the emulator image and that any necessary resources it might need are available. Regards, -- Kendall Bennett Chief Executive Officer SciTech Software, Inc. Phone: (530) 894 8400 http://www.scitechsoft.com ~ SciTech SNAP - The future of device driver technology! ~ - 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/