Subject: Re: [ACPI] Call for help: list of machines with working S3
From: Len Brown <len.brown@intel.com>
To: Pavel Machek <pavel@suse.cz>
Cc: ACPI mailing list <acpi-devel@lists.sourceforge.net>,
       Kernel Mailing List <linux-kernel@vger.kernel.org>, seife@suse.de,
       rjw@sisk.pl
In-Reply-To: <20050214211105.GA12808@elf.ucw.cz>
References: <20050214211105.GA12808@elf.ucw.cz>
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Date: 17 Feb 2005 01:16:45 -0500
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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.

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.

What am I missing?

thanks,
-Len


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