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From: John Baldwin <jhb@freebsd.org>
To: Alberto Villa <avilla@freebsd.org>
Subject: Re: Dell acpi_video patch
Date: Mon, 15 Oct 2012 11:12:03 -0400
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Cc: acpi@freebsd.org, freebsd-acpi@freebsd.org,
 Juergen Lock <nox@jelal.kn-bremen.de>, mobile@freebsd.org
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On Friday, October 12, 2012 7:57:43 pm Alberto Villa wrote:
> On Fri, Oct 12, 2012 at 4:06 PM, John Baldwin <jhb@freebsd.org> wrote:
> > I think this is correct, but in we need to do more to properly handle that
> > flag (DOD_DEVID_SCHEME_STD).  Specifically, we shouldn't trust any bits in 
the
> > device ID unless that bit is set (except for the special case of
> > DOD_DEVID_LCD) as per my reading of the _DOD description in the ACPI 3.0b
> > spec.  I think this larger patch will do that while also fixing your case:
> 
> I tested your patch and the only effect is that my three reported
> screens (I'm on a laptop) changed from "crt" to "out" (I understand
> why, from the code):
> 
> hw.acpi.video.out0.active: 1
> hw.acpi.video.out1.active: 1
> hw.acpi.video.out1.brightness: 100
> hw.acpi.video.out1.fullpower: 100
> hw.acpi.video.out1.economy: 50
> hw.acpi.video.out1.levels: 100 50 0 10 20 30 40 50 60 70 80 90 100
> hw.acpi.video.out2.active: 1
> 
> Is there something I can do to help you make them recognised
> correctly, or is it fault of a buggy ACPI table?

Interesting.  Can you get an acpidump?

-- 
John Baldwin