Re: throttling setting being reset

Re: throttling setting being reset

[Mathias Kolehmainen]

I have been wondering about the temperature.  What is a normal operating
termperature range?

The laptop seems to be around 45 when nothing is happening and quite
happily goes up to near 90 when I'm running gcc.  

I've been getting some erratic crashes when the termperature rises, so
I've been trying to keep the temperature down by tweaking the throttling
file manually.  

I'm not sure how cooling is supposed to work on the laptop.  Maybe it is
supposed to run at a lower performance mode most of the time.  I thought
that I was suffering from a software issue, but maybe the thing is broken.

Anyone else out there got a SRX77p notebook from sony?  I'll check with
the linux-sony list too.


-mathias




On Tue, 23 Jul 2002, Charl P. Botha wrote:

> Hmmm, nevermind the fact that your manual throttling isn't working... your
> CPU shouldn't reach trip point during normal (even hard) use. 85C is just
> too hot.  Are you overclocked?  Cooling broken?




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Re: throttling setting being reset

[Arndt Schoenewald]

Hi Mathias!

On Tue, Jul 23, 2002 at 01:10:04PM -0700, Mathias Kolehmainen wrote:
> I have been wondering about the temperature.  What is a normal operating
> termperature range?
> 
> The laptop seems to be around 45 when nothing is happening and quite
> happily goes up to near 90 when I'm running gcc.  
> 
> I've been getting some erratic crashes when the termperature rises, so
> I've been trying to keep the temperature down by tweaking the throttling
> file manually.  

Oops! 90° is way to hot; no wonder that the machine crashes.

> I'm not sure how cooling is supposed to work on the laptop.  Maybe it is
> supposed to run at a lower performance mode most of the time.  I thought
> that I was suffering from a software issue, but maybe the thing is broken.

How is cooling supposed to work? Well, the fan should turn on!

If your fan doesn't run on Linux but does run on Windows, maybe the ACPI
fan control does not work for some reason. Try building a kernel with

    CONFIG_ACPI_FAN=m
    CONFIG_ACPI_THERMAL=m

i.e. ACPI fan and thermal support built as modules. How does the system
work with and without these two modules loaded?

Good luck,
Arndt


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Re: throttling setting being reset

[Pavel Machek]

Hi!

> > I have been wondering about the temperature.  What is a normal operating
> > termperature range?
> > 
> > The laptop seems to be around 45 when nothing is happening and quite
> > happily goes up to near 90 when I'm running gcc.  
> > 
> > I've been getting some erratic crashes when the termperature rises, so
> > I've been trying to keep the temperature down by tweaking the throttling
> > file manually.  
> 
> Oops! 90° is way to hot; no wonder that the machine crashes.

No it is not. If it was too hot for correct operation, machine must powerdown.

								Pavel
-- 
Philips Velo 1: 1"x4"x8", 300gram, 60, 12MB, 40bogomips, linux, mutt,
details at http://atrey.karlin.mff.cuni.cz/~pavel/velo/index.html.



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Re: throttling setting being reset

[Charl P. Botha]

On Tue, Jul 30, 2002 at 04:57:26AM +0000, Pavel Machek wrote:
> > Oops! 90° is way to hot; no wonder that the machine crashes.
> 
> No it is not. If it was too hot for correct operation, machine must 
> powerdown.

P4s only trip (power-down) at 135C.  They only start throttling at 85C.
This means 90C is too hot for normal operation, by definition. :)

-- 
charl p. botha http://cpbotha.net/ http://visualisation.tudelft.nl/


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