From mboxrd@z Thu Jan 1 00:00:00 1970 From: Matthew Garrett Subject: Re: [RFC] Reliable video POSTing on resume (was: Re: [ACPI] Samsung P35, S3, black screen (radeon)) Date: Thu, 10 Feb 2005 20:29:47 +0000 Message-ID: <1108067388.4085.74.camel@tyrosine> References: <1107695583.14847.167.camel@localhost.localdomain> <420BB267.8060108@tmr.com> <20050210192554.GA15726@sci.fi> <1108066096.4085.69.camel@tyrosine> <9e473391050210121756874a84@mail.gmail.com> Mime-Version: 1.0 Content-Type: text/plain Content-Transfer-Encoding: 7bit In-Reply-To: <9e473391050210121756874a84@mail.gmail.com> Sender: linux-kernel-owner@vger.kernel.org To: Jon Smirl Cc: Ville =?ISO-8859-1?Q?Syrj=E4l=E4?= , Bill Davidsen , Alan Cox , Pavel Machek , ncunningham@linuxmail.org, Carl-Daniel Hailfinger , ACPI List , Linux Kernel Mailing List List-Id: linux-acpi@vger.kernel.org On Thu, 2005-02-10 at 15:17 -0500, Jon Smirl wrote: > On Thu, 10 Feb 2005 20:08:15 +0000, Matthew Garrett wrote: > > It also explicitly states that Windows 2000 and XP don't support this, > > which leads me to suspect that vendors no longer expect POSTing to be > > possible after initial system boot. > > No, it means that some of my ATI cards don't function as secondary > adapters on 2K and XP. And nor will any other card that requires POSTing (assuming that it isn't just ATI being less than honest about driver shortcomings). And we've certainly seen in the past that removing support for functionality in Windows tends to result in hardware no longer supporting that functionality. I have real, shipping hardware here that fails if you simply try to execute the video BIOS POST code. If you think this is due to a shortcoming in existing BIOS emulations, I'm more than happy to dump the video and system BIOS regions and send them to you. -- Matthew Garrett | mjg59@srcf.ucam.org