From mboxrd@z Thu Jan 1 00:00:00 1970 From: takawata-l7ZBCLq5RC066kwqclu8Pg@public.gmane.org Subject: Re: display interface? Date: Thu, 05 Sep 2002 12:21:53 +0900 Sender: acpi-devel-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org Message-ID: <200209050313.MAA01092@axe-inc.co.jp> References: <3D76C770.40807@prairienet.org> Return-path: In-Reply-To: Your message of "Thu, 05 Sep 2002 11:54:40 JST." <3D76C770.40807-ZFKsivP1bGvOQU1ULcgDhA@public.gmane.org> Errors-To: acpi-devel-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Help: List-Post: List-Subscribe: , List-Unsubscribe: , List-Archive: To: John Belmonte Cc: takawata-yzSWc4HAx5xL9jVzuh4AOg@public.gmane.org, acpi-devel-pyega4qmqnRoyOMFzWx49A@public.gmane.org List-Id: linux-acpi@vger.kernel.org In message <3D76C770.40807-ZFKsivP1bGvOQU1ULcgDhA@public.gmane.org>, John Belmonte wrote: >> this may be a dump question: is there a acpi interface to the laptop display >? >> Is it possible to make the display darker/lighter depending on the state of >battery? >> >> Joerg > >There is no standard interface under ACPI for this. Vendors implement There is a spec for Display control on ACPI at ACPI spec 2.0 Appendex B, though it seems to be not so widely accepted. But My ThinkPad i1620 AML code implements this, and I'm writing a driver for acpi vga spec on FreeBSD. ------------------------------------------------------- This sf.net email is sponsored by: OSDN - Tired of that same old cell phone? Get a new here for FREE! https://www.inphonic.com/r.asp?r=sourceforge1&refcode1=vs3390