From owner-freebsd-hackers Thu Oct 22 16:32:57 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id QAA22459 for freebsd-hackers-outgoing; Thu, 22 Oct 1998 16:32:57 -0700 (PDT) (envelope-from owner-freebsd-hackers@FreeBSD.ORG) Received: from dingo.cdrom.com (dingo.cdrom.com [204.216.28.145]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id QAA22454 for ; Thu, 22 Oct 1998 16:32:55 -0700 (PDT) (envelope-from mike@dingo.cdrom.com) Received: from dingo.cdrom.com (localhost.cdrom.com [127.0.0.1]) by dingo.cdrom.com (8.9.1/8.8.8) with ESMTP id QAA01865; Thu, 22 Oct 1998 16:35:05 -0700 (PDT) (envelope-from mike@dingo.cdrom.com) Message-Id: <199810222335.QAA01865@dingo.cdrom.com> X-Mailer: exmh version 2.0.2 2/24/98 To: Greg Lehey cc: Jason Thorpe , Nick Hibma , Mike Smith , FreeBSD hackers mailing list Subject: Re: multi-user: multiple consoles in FreeBSD In-reply-to: Your message of "Fri, 23 Oct 1998 08:53:39 +0930." <19981023085339.H28824@freebie.lemis.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Date: Thu, 22 Oct 1998 16:35:05 -0700 From: Mike Smith Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG > > Some display controllers (notably, 3D accellerators) have a jumper > > to disable VGA mode completely, but then you only get a memory > > mapped frame buffer (if you're lucky :-) > > Hmm. I think this is your proviso. You specifically mean VGA > compatibility. Well, yes, if you want a graphics board to conform to > a standard which only allows one board, then you can only use one > board. But there's more than just a frame buffer if you disable this > feature. Jason's gripe was that you con't have more than one video card because the second wants its VGA-compatibility registers mapped in the same place as the first. Unless there's something really odd going on, it's relatively trivial to simply map the I/O ranges for display cards other than the first somewhere else; you just need the smarts in your system to do this. Video chipsets not supporting this would be in violation of the PCI spec. I wouldn't expect this to be too common. -- \\ Sometimes you're ahead, \\ Mike Smith \\ sometimes you're behind. \\ mike@smith.net.au \\ The race is long, and in the \\ msmith@freebsd.org \\ end it's only with yourself. \\ msmith@cdrom.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message