misdetection of tz2 temperature

Nate Lawson nate at root.org
Mon Mar 5 21:56:15 UTC 2007


[Stefan removed from cc]

Bruce Evans wrote:
> On Mon, 5 Mar 2007, Bruce Evans wrote:
> 
>> I now have a completely different acpi problem to ask about.  My HP
>> nx6325 now shuts down an instant after booting FreeBSD with a 1 week
>> old kernel, since the tz2 temperature is misdetected as 3413.3 degrees
>> C.  All temperatures seemed to be detected correctly in 3+ week old
>> kernels.  Only batter battery misdetection that caused shutdowns (less
>> cleanly via panics) in the old kernels.
> 
> This seems to be fixed in -current.

I recently committed a major reworking of the embedded controller
driver.  See this message:

http://lists.freebsd.org/pipermail/freebsd-current/2007-February/069525.html

See this message for a list of things to try.  The goal is to diagnose
why the EC is timing out.  The thermal misdetection is only a symptom.

http://lists.freebsd.org/pipermail/freebsd-current/2007-February/069577.html

The one I think would be most helpful is increasing the total time spent
waiting, but I would appreciate your help seeing what combo of
polling/total timeout works for you.

debug.acpi.ec.timeout=1000  # 1 sec total

Thanks,
-- 
Nate


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