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Date:      Fri, 20 Oct 2006 09:25:28 -0700
From:      Nate Lawson <nate@root.org>
To:        Joel Dahl <joel@FreeBSD.org>
Cc:        acpi@FreeBSD.org
Subject:   Re: HP NX7400 - ACPI problems
Message-ID:  <4538F878.9050605@root.org>
In-Reply-To: <1161347795.671.14.camel@localhost>
References:  <1161347795.671.14.camel@localhost>

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Joel Dahl wrote:
> A few notes on running the latest CURRENT (plain GENERIC) on a HP NX7400
> laptop, maybe someone can help me solve these problems:
> 
> # 1
> The following (somewhat annoying) message is repeated on the console all
> the time:
> 
> acpi_tz0: _CRT value is absurd, ignored (256.0C)
> 
> # 2
> Sometimes, perhaps one out of ten, the battery isn't detected, so
> "acpiconf -i batt" gives me:
> 
> Design capacity:        0 mWh
> Last full capacity:     0 mWh
> Technology:             primary (non-rechargable)
> Design voltage:         0 mWh
> Capacity (warn):        0 mWh
> Capacity (low):         0 mWh
> Low/warn granularity:   0 mWh
> Warn/full granularity:  0 mWh
> Model number:
...
> # 4
> I've seen an ACPI-related panic (reported on current@) during boot.
> Only happened twice so far though.  For reference:
> http://people.freebsd.org/~joel/panics/panic001.jpg

All part of the same problem.  Your EC (embedded controller) is not 
responding.  Check the acpi list archives for some other HP laptops 
where this occurred and a workaround patch.

I'll do my best to turn it into a final patch and get it committed.

-- 
Nate



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