hp nx6125 again

[Sam Leffler]

Nate Lawson wrote:
> Sam Leffler wrote:
> 
>> I posted a while back about getting a thermal trip whenever I take the 
>> machine off ac.  Zone 3 jumps from ~30C to 150C in 5-10 seconds.  I 
>> received no responses except me-too-style ones.  I just started 
>> looking again and noticed that this only happens when the machine 
>> boots with ac plugged in, _then_ you move to battery.  If you boot on 
>> battery there is no trip.  Also, Linux (Suse 10.0) works fine.  No 
>> thermal trip.
> 
> 
> Something's not working right with acpi_thermal then.  Perhaps it's not 
> re-evaluating zones and disabling one that is now inactive once the 
> machine is unplugged.  The number of zones (acX) can change when power 
> state changes. Then it gets an invalid reading and thermal trip occurs. 
>  Put debugging prints in the acpi_thermal re-evaluation code.

Been there, done that.  See my previous posting a month or so back.  No 
invalid readings.  No zone changes.  The high temps really seem to be read.

> 
>> The last issue is that like some other folks the system will lockup if 
>> I let powerd bring the clock down when idle.  Lockups are easily 
>> reproducable but don't appear to be related to any particular state 
>> (e.g. I saw a lockup in the lowest frequency and also at one above 
>> lowest--though perhaps it was really switching to the lowest frequency 
>> and locked up before the printf made it to the console).
> 
> 
> It depends what drivers your system is using, dmesg | grep cpu.
> 

cpu0: <ACPI CPU> on acpi0
acpi_throttle0: <ACPI CPU Throttling> on cpu0
powernow0: <PowerNow! K8> on cpu0

The processor is a turion64 Mobile M-37.

	Sam