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Date:      Sun, 24 Feb 2013 20:04:25 -0500
From:      Eitan Adler <lists@eitanadler.com>
To:        matt <sendtomatt@gmail.com>
Cc:        bapt@freebsd.org, freebsd-acpi@freebsd.org, Ian Smith <smithi@nimnet.asn.au>
Subject:   Re: what is required to support a new laptop?
Message-ID:  <CAF6rxg=qzuFdsOkV8Ry9oCw3V=pxwihDiR2E8DE=bJ%2BVQaBvOA@mail.gmail.com>
In-Reply-To: <512AB6F3.6030001@gmail.com>
References:  <CAF6rxg=c=JN=N7NkWYdRHbgAqQTPGoFr=uLuXgiCfh%2BDdd-C4w@mail.gmail.com> <20130128114938.GK50515@e-new.0x20.net> <CAF6rxgnHayanFrLhmixdixe_pKeifPZG2mUYnJc51ioc47oYJQ@mail.gmail.com> <CAN6yY1tLY_LSv6xpcfD_oC_6769BSuFutKYE4%2BExN81oyue5vQ@mail.gmail.com> <20130130024649.R87033@sola.nimnet.asn.au> <CAF6rxgnuC%2B9-TZV_3uv2hyGiGOngost9k2ct0ZFtfvnzeDPvEA@mail.gmail.com> <20130130032714.D87033@sola.nimnet.asn.au> <CAF6rxgmuvv%2B8wOgju6bbjLk-WysDo8BpDaKebMMOd0aSohPO=w@mail.gmail.com> <20130130050811.H87033@sola.nimnet.asn.au> <512AB6F3.6030001@gmail.com>

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On 24 February 2013 19:57, matt <sendtomatt@gmail.com> wrote:
> On 01/29/13 10:24, Ian Smith wrote:
>> On Tue, 29 Jan 2013 12:46:43 -0500, Eitan Adler wrote:
>>  > On 29 January 2013 12:29, Ian Smith <smithi@nimnet.asn.au> wrote:
>>  > > Ah right.  I don't suppose kldload -v shows anything useful about the
>>  > > problem loading it?  Ah, never mind, it may be obvious .. lightly
>>  > > skimming your asl.y530.gz, I recalled folks having to patch something
>>  > > for Lenovo rather than IBM OEMIDs .. hunt, hunt .. ok, here it is:
>>  > >
>>  > > http://www.freebsd.org/cgi/query-pr.cgi?pr=kern/164538
>>  >
>>  >
>>  > This is after the install of a patched acpi_ibm
>>  > [3500 root@gravity /usr/src/sys/modules/acpi ]#kldload -v acpi_ibm
>>  > Loaded acpi_ibm, id=12
>>
>> Which looks maybe successful, on the face of it? ..
>>
>>  > [5507 eitan@gravity (100)% ~ !1!]%sysctl dev.acpi_ibm
>>  > sysctl: unknown oid 'dev.acpi_ibm'
>>
>> .. but clearly wasn't.
>>
>
> The Y series doesn't have the HKEY stuff, or it's not the same. You want
> acpi_video (as does every new Lenovo, thinkpad or not).
>
> The problem is Lenovo is putting the "correct" _BCL/_BCM under "PEG"
> devices....section from your dsdt follows, temporary workaround test
> after that

...

> This would be under _SB.PCI0.PEG0.VGA
>
> Try acpi_call -p '\_SB.PCI0.PEG0.VGA.LCD._BCL'
> then
> acpi_call -p '\_SB.PCI0.PEG0.VGA.LCD._BCL' -i 50
>
> Experiment with the numbers.
>
> We need to fix acpi_video so it attaches to the correct _BCL on these
> laptops.

Unknown object type '4'

regardless of what number is passed to -i.  Same with the first call.

-- 
Eitan Adler



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