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Date:      Thu, 10 Jun 2010 19:47:22 +0200
From:      David DEMELIER <demelier.david@gmail.com>
To:        Dan Lukes <dan@obluda.cz>
Cc:        freebsd-mobile@freebsd.org
Subject:   Re: kern/145306: [acpi]: Can't change brightness on HP ProBook 4510s
Message-ID:  <AANLkTiljw3RrWR53HibhZb0R1V0D0mJL3lIvlRu9gCM_@mail.gmail.com>
In-Reply-To: <4BBA1BC1.1080002@obluda.cz>
References:  <201004031619.o33GJBHd043318@freefall.freebsd.org> <4BB868E3.50206@obluda.cz> <o2ub3954bba1004040824m3e888839o47ca4417be2ffe06@mail.gmail.com> <4BB8D649.4020608@obluda.cz> <k2wb3954bba1004041450s24edc3efq1a3a887e7319ccc@mail.gmail.com> <4BB98CB0.6090108@obluda.cz> <j2hb3954bba1004050103wca765d9aua042fca0f014a268@mail.gmail.com> <4BBA0AEE.7030606@obluda.cz> <m2lb3954bba1004050922r73f2ba9fie4c9745addd80f08@mail.gmail.com> <4BBA10A0.9050700@obluda.cz> <h2qb3954bba1004050938ta6097919l97011d0cffc8a284@mail.gmail.com> <4BBA1BC1.1080002@obluda.cz>

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2010/4/5 Dan Lukes <dan@obluda.cz>:
> Short summary for PR/145306:
>
> I asked the David to turn on ACPI debugging. There are some notification
> (so we know we got debugging output properly) but none of them are
> related to brightness keys.
>
> David DEMELIER wrote:
>>>> I added them and I got a big output in dmesg but still no message when=
 pressing fn-keys.
>> No message at all, like I didn't do anything
>
> Then no good news. I can't help you. Your BIOS doesn't create the
> notification required by ACPI specification section B.7
>
> Your's acpidump show that the notification may be sent, but we know the
> prerequisites that's need to be fulfilled. It may be a initialisation of
> something or so.
>
> If you have older than lates version of system BIOS (e.g. F.12 revision)
> the upgrade may help:
> http://h20000.www2.hp.com/bizsupport/TechSupport/SoftwareIndex.jsp?lang=
=3Den&cc=3Dus&prodNameId=3D3934829&prodTypeId=3D321957&prodSeriesId=3D39348=
28&swLang=3D13&taskId=3D135&swEnvOID=3D4056#120
>
> May be someone smarter may help better to you. You should save output of:
> 1. acpidump -dt
> 2. devinfo -vr
> 3. dmesg after boot with ACPI debugging turned on
>
> somewhere then send URL to the PR so anyone can read it.
>
> I'm sorry I have no better response to you ...
>
> =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0Dan
>

Hi,

Just one information I noticed today : when booting without ACPI
enabled (it does not boot it stops at a certain point (can't
remember)) I can change the brightness so maybe there is a problem
between freebsd ACPI <-> the laptop screen ?

Cheers

--=20
Demelier David



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