From owner-freebsd-mobile@FreeBSD.ORG  Tue May 11 15:21:44 2004
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To: rand@meridian-enviro.com (Douglas K. Rand)
In-reply-to: Your message of "Tue, 11 May 2004 16:33:20 CDT."
             <87r7tq644f.fsf@delta.meridian-enviro.com> 
Date: Tue, 11 May 2004 15:21:42 -0700
From: "Kevin Oberman" <oberman@es.net>
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cc: "Michael A. Smith" <msmith@code-fu.com>
cc: freebsd-mobile@freebsd.org
Subject: Re: reformatting laptop & ACPI: special partitions? 
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> From: rand@meridian-enviro.com (Douglas K. Rand)
> Date: Tue, 11 May 2004 16:33:20 -0500
> 
> Kevin> Some systems also support a light sleep which only stops the
> Kevin> CPU and turns off the display. This one still drains the
> Kevin> battery pretty quickly.
> 
> Are there any "screen saver" options for ACPI laptops? None of the
> Dell laptops I've had support DPMS, and being able to just turn off
> the screen after a few minutes of unuse would save alot.
> 

It's FreeBSD that has lacked support of VESA DPMS.

If you are running CURRENT, John Baldwin has added VESA DPMS to the
acpi_video kernel module. I suspect that this will work on you system,
but I am never positive of anything on any other laptop. google on
acpi_video_dpms.patch in Google Groups.

I don't know when this might be committed to CURRENT, let alone MFCed to
STABLE.

If your Dell really does not support DPMS, I'm not sure where to try.
-- 
R. Kevin Oberman, Network Engineer
Energy Sciences Network (ESnet)
Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab)
E-mail: oberman@es.net			Phone: +1 510 486-8634