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Date:      Mon, 28 Mar 2005 23:07:39 -0500
From:      Anish Mistry <mistry.7@osu.edu>
To:        freebsd-mobile@freebsd.org, Ron Freidel <rfreidel@onewest.net>
Subject:   Re: Dell inspirion 8600 backlight
Message-ID:  <200503282307.46660.mistry.7@osu.edu>
In-Reply-To: <20050328191545.20bc033d.rfreidel@onewest.net>
References:  <20050328191545.20bc033d.rfreidel@onewest.net>

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On Monday 28 March 2005 09:15 pm, Ron Freidel wrote:
> I am wondering if anyone knows how to turn off the display on a
> Dell inspirion 8600 when it goes into suspend mode, or if not that
> then just turning off the backlight as in dpms.
>
> The only thing I have found is if I do a
>
> sysctl hw.acpi.video.crt0.active=3D1
>
> and then
>
> sysctl hw.acpi.video.lcd0.active=3D0
>
> that turns off the display completely, but it is difficult to get
> it to turn back on, plus the video card is still active so there is
> no power saving.
>
> Am currently running 6.0-CURRENT, built today, but I find the same
> thing on 5.3, and 5.4 pre.
>
> Thanks in advance.
>
Have you tried the VESA DPMS patch for acpi_video that was floating=20
around on the list a while ago?  It shuts off the video adapter when=20
going into suspend.

=2D-=20
Anish Mistry

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