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From: j.e.drews@att.net
To: Nate Lawson <nate@root.org>
Date: Wed, 02 Jun 2004 01:17:47 +0000
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Subject: Re: ACPI Error: AE_NO_HARDWARE_RESPONSE
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Hi Nate:

 I made the polling adjustment that you suggested:
sysctl hw.acpi.thermal.polling_rate=1

and then ran the script while compiling qt33 and Mozilla at the same time. the initial reading was at:  hw.acpi.thermal.tz0.temperature: 3112
the high temps were:
hw.acpi.thermal.tz0.temperature: 3242
hw.acpi.thermal.tz0.temperature: 3252

the fan kicked on at 3232. I could not get the error again, even though I ran the computer under load for quite a while.

The output of acpidump -t -d > pwrnotebooks-C.asl is here:

http://www.silbsd.org/bugreports/pwrnotebooks-C.asl

it was too many lines to post to the list. Let me try a few more things with to tease out this error  message again.

                               Kind regards
                               Jonathan






> This means the EC timed out while reading the current temp.  I'm not sure
> what is causing this.  Try setting:
> 
> sysctl hw.acpi.thermal.polling_rate=1
> 
> This makes the thermal poll run every second.  And then run this script:
> 
> #!/bin/sh
> while [ 1 ]; do
> 	sysctl hw.acpi.thermal.tz0.temperature
> 	sleep .1
> done
> 
> This polls the temp over and over to see if it can reproduce the error.
> Don't worry, this error only means your temp reading will be incorrect (no
> system damage will occur).  Let me know how often the errors appear.  Try
> loading the system with some other apps if the errors don't appear.
> 
> Also, send me the output of so I can see your notebook's config:
>     acpidump -t -d > pwrnotebooks-C.asl
> 
> -Nate
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