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Date:      Wed, 13 Dec 2006 03:27:43 +0100
From:      Markus Brueffer <markus@freebsd.org>
To:        Rong-En Fan <rafan@freebsd.org>
Cc:        freebsd-acpi@freebsd.org
Subject:   Re: acpi_ibm(4) and amd64
Message-ID:  <200612130327.47809.markus@freebsd.org>
In-Reply-To: <20061212165145.GA59094@svm.csie.ntu.edu.tw>
References:  <20061212165145.GA59094@svm.csie.ntu.edu.tw>

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On Tuesday 12 December 2006 17:51, Rong-En Fan wrote:
> It seems that it can not get the brightness level. I put my ASL at
>
> http://people.freebsd.org/~rafan/x60-1706b69.asl
>
> for anyone interested.

Everything looks right DSDT wise, the EC offset for brightness didn't chang=
e.
I did a quick read through the linux-thinkpad ml archives and it seems that=
=20
this is a BIOS related problem. Older versions work, but current ones show=
=20
this problem. What BIOS and EC versions do you have installed?

Btw: acpi_video(4) should add a brightness sysctl for the lcd (judging from=
=20
your DSDT). How does this one behave? Does writing to the brightness sysctl=
=20
have any effect (acpi_ibm(4) and acpi_video(4))?

> 1) can we safely use acpi_ibm(4) on amd64

No objections here.

Markus

=2D-=20
Markus Brueffer =A0 =A0| GPG-Key: http://people.FreeBSD.org/~markus/markus.=
asc
markus@brueffer.de | FP: 3F9B EBE8 F290 E5CC 1447 8760 D48D 1072 78F8 A8D4
markus@FreeBSD.org | FreeBSD: The Power to Serve!

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