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Date:      Fri, 30 Apr 2004 17:02:45 -0400
From:      Anish Mistry <mistry.7@osu.edu>
To:        freebsd-current@freebsd.org
Subject:   Re: VESA DPMS Driver
Message-ID:  <200404301702.54522.mistry.7@osu.edu>
In-Reply-To: <200404301619.35517.jhb@FreeBSD.org>
References:  <40909090.3050108@cs.unisa.edu.au> <200404301619.35517.jhb@FreeBSD.org>

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On Friday 30 April 2004 04:19 pm, John Baldwin wrote:
> On Thursday 29 April 2004 01:20 am, Benjamin Close wrote:
> > Hi All,
> >     I like many have suffered the battery drain of the laptop screen
> > remaining on while the system is suspended. I've created a driver that
> > allows the screen to be shutdown by DPMS provided acpi supports video
> > mode changes. Beware, this is my first kernel driver so it's nothing
> > great. Hopefully it will help someone with enough knowledge build a
> > better driver.
> >
> > It's a loadable kernel module and the only tweak required to get it
> > compiling should be in the Makefile.
> >
> > You can grab it from:
> > http://www.clearchain.com/people/benjsc/download/vesa_dpms.tar.gz
> > A URL as the list strips attachments.
>
> I merged this into the acpi_video(4) driver (which already takes over ACPI
> devices with a DOD, etc. handle) so that the two drivers aren't mutually
> exclusive.  Unfortunately, my laptop doesn't have any _DOD, etc. methods
> for its video device so I can't test it.  It's somewhat hackish as only
> i386 has VM86 support, but the patch is at:
>
> http://www.FreeBSD.org/~jhb/patches/acpi_video_dpms.patch
Just tested this, and it seems to work. :)

=2D-=20
Anish Mistry

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