From mboxrd@z Thu Jan 1 00:00:00 1970 From: Vojtech Pavlik Subject: Re: Call for help: list of machines with working S3 Date: Thu, 17 Feb 2005 11:15:33 +0100 Message-ID: <20050217101533.GA15721@ucw.cz> References: <20050214211105.GA12808@elf.ucw.cz> <1108621005.2096.412.camel@d845pe> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1108621005.2096.412.camel@d845pe> Sender: acpi-devel-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org Errors-To: acpi-devel-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , List-Archive: To: Len Brown Cc: Pavel Machek , ACPI mailing list , Kernel Mailing List , seife-l3A5Bk7waGM@public.gmane.org, rjw-KKrjLPT3xs0@public.gmane.org List-Id: linux-acpi@vger.kernel.org On Thu, Feb 17, 2005 at 01:16:45AM -0500, Len Brown wrote: > Pavel, > I think that it is the BIOS' job on S3-suspend > to save the video mode. On S3-resume the BIOS should > re-POST and restore the video mode. Should. But this definitely is not the case on about 80+% of notebooks. You can save the video state through VESA VBE, and restore it on resume, but if the BIOS didn't re-POST the video, this will often fail. > While Linux's X drivers may be able to handle the case > where X is running -- that doesn't help us with the > cases where X is not running (a case that Windows > presumably does not have). > > Besides updated X drivers, which may have complicated > restore routines for complicated modes, all the other > techniques for restoring video from Linux are > hit/miss workarounds for broken platforms. > > To completely solve the Linux S3 video restore issue, > we need to push the platform and BIOS vendors. That's correct. > What am I missing? I'm not sure if you can push the whole industry at once. -- Vojtech Pavlik SuSE Labs, SuSE CR ------------------------------------------------------- SF email is sponsored by - The IT Product Guide Read honest & candid reviews on hundreds of IT Products from real users. Discover which products truly live up to the hype. Start reading now. http://ads.osdn.com/?ad_id=6595&alloc_id=14396&op=click