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Date:      Wed, 5 Feb 2014 12:42:48 -0700 (MST)
From:      Warren Block <wblock@wonkity.com>
To:        Eitan Adler <lists@eitanadler.com>
Cc:        Adrian Chadd <adrian@freebsd.org>, desktop@freebsd.org, "freebsd-mobile@freebsd.org" <mobile@freebsd.org>
Subject:   Re: Story of a laptop user
Message-ID:  <alpine.BSF.2.00.1402051242060.49157@wonkity.com>
In-Reply-To: <CAF6rxgkds3d=MZ6fuaf0zzdNoQdiqQDubQjaU4=ozguAGy=_9A@mail.gmail.com>
References:  <CAF6rxgneG6vB2B0EVJFc1rUCPhGy1-NwW4RnF4LKnQk5TJCTTg@mail.gmail.com> <CAJ-Vmo=aXKAHcHu2xgrVGLoONprJn6QtLnXDqvCCF1M4gMkNoQ@mail.gmail.com> <CAF6rxgmCa0xW9_rMiPO1RNoC6Jni4=MUxOTzO68XxG8SX_d15g@mail.gmail.com> <CAJ-VmonUM1ycfXRPTNJaBrpQizkFgnzFDD%2BkCHk=gJWqMVow=A@mail.gmail.com> <CAF6rxgkds3d=MZ6fuaf0zzdNoQdiqQDubQjaU4=ozguAGy=_9A@mail.gmail.com>

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On Wed, 5 Feb 2014, Eitan Adler wrote:

> On Wed, Feb 5, 2014 at 1:25 PM, Adrian Chadd <adrian@freebsd.org> wrote:
>> hi,
>>
>> Try (if I'm reading your dump correctly):
>>
>> _SB.PCI0.PEG0.VGA.LCD._BCM
>> _SB.PCI0.PEG1.VGA.LCD._BCM
>> _SB.PCI0.GFX0.DD02._BCM
>>
>> .. god I wish we had a way to actually just dump the tree in a useful
>> fashion to inspect what objects there are.
>>
>> Anyway, do the acpi_call hacks to various nodes that have _BCM in them
>> and see if setting any of them changes your brightness.
>
> Nothing here changed the screen brightness. If you have another
> suggestion i'd be happy to try it.

Not ACPI, but maybe a way that will work:
https://forums.freebsd.org/viewtopic.php?f=12&t=44146&p=249316



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