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Date: Thu, 30 Jun 2011 22:49:11 +0300
Message-ID: <BANLkTikwgy+KuA5E5zXQKGT-eyV35YAVag@mail.gmail.com>
From: Vitaly Magerya <vmagerya@gmail.com>
To: Andriy Gapon <avg@freebsd.org>
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Cc: freebsd-acpi@freebsd.org
Subject: Re: (Missing) power states of an Atom N455-based netbook
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Andriy Gapon <avg@freebsd.org> wrote:
> on 28/06/2011 22:37 Vitaly Magerya said the following:
>> Is there some simple way of sending fake advertisement? Or will
>> that lead to disaster?
>
> It doesn't make sense without actual support.
> And maybe (just maybe) it won't change much anyway.

I see. Should I hold my breath for this code?

> Since we are now dealing with black box/magic behind ACPI, may I try to suggest
> doing some DSDT hacks and seeing what changes?  One thing to try would be
> replacing "\_SB.VDRV" with "VDRV" in _Q51 and _Q52 methods.
> That at least should rid you of those annoying ACPI errors, at best it could
> improve something.  At the very worst it may fry your machine, though...

Just tried this. Nothing seems fried; the visible effect is that
now when I plug the power cord in backlight brightness turns all
the way up, and then back down the I turn it off. No changes in
SNVS or GNVS variables aside from the usual ones.