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From: Randy Bush <randy@psg.com>
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Date: Mon, 1 Mar 2004 20:40:46 -0800
To: Nate Lawson <nate@root.org>
References: <20040301234415.53B3E5D07@ptavv.es.net>
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cc: acpi-jp@jp.FreeBSD.org
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Subject: Re: [acpi-jp 3090] Update on ACPI with FreeBSD CURRENT on ThinkPad
 T30
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> Try using the sysctls from the new acpi_video module to turn off the
> backlight, perhaps by turning the brightness way down.

i am on a t40p and have tried a lot of this to no avail.

randy