Re: VESA DPMS Driver
From: Anish Mistry (mistry.7_at_osu.edu)
Date: 04/30/04
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- In reply to: John Baldwin: "Re: VESA DPMS Driver"
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To: freebsd-current@freebsd.org Date: Fri, 30 Apr 2004 17:02:45 -0400
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. :)
-- Anish Mistry
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