From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jon Smirl Subject: Re: Reading the EDID block for x86 machines Date: Wed, 12 Mar 2003 10:16:58 -0800 (PST) Sender: linux-fbdev-devel-admin@lists.sourceforge.net Message-ID: <20030312181658.96700.qmail@web14912.mail.yahoo.com> References: <1047490650.1030.31.camel@localhost.localdomain> Mime-Version: 1.0 Return-path: Received: from web14912.mail.yahoo.com ([216.136.225.248]) by sc8-sf-list1.sourceforge.net with smtp (Exim 3.31-VA-mm2 #1 (Debian)) id 18tAmh-00011m-00 for ; Wed, 12 Mar 2003 10:16:59 -0800 In-Reply-To: <1047490650.1030.31.camel@localhost.localdomain> Errors-To: linux-fbdev-devel-admin@lists.sourceforge.net List-Help: List-Post: List-Subscribe: , List-Id: List-Unsubscribe: , List-Archive: Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: Antonino Daplas Cc: James Simmons , Linux Fbdev development list --- Antonino Daplas wrote: > Unless I missed some imported BIOS calls or other > methods to do this or > something similar in real-mode... You missed something. The address of the VBIOS ROM can be controlled by writing to the PCI config space. You can make the ROM appear anywhere you want it to. This happens even for the boot video device. Somewhere very early in the boot the system BIOS enabled the VBIOS ROM and copied it to C000. This is the "shadow BIOS" option. ===== Jon Smirl jonsmirl@yahoo.com __________________________________________________ Do you Yahoo!? Yahoo! Web Hosting - establish your business online http://webhosting.yahoo.com ------------------------------------------------------- This SF.net email is sponsored by:Crypto Challenge is now open! Get cracking and register here for some mind boggling fun and the chance of winning an Apple iPod: http://ads.sourceforge.net/cgi-bin/redirect.pl?thaw0031en