HP NX7400 - ACPI problems

[Nate Lawson]

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