Avoiding "WARNING: system temperature too high, shutting down soon!"?

Eric Anderson anderson at centtech.com
Mon Sep 25 06:29:42 PDT 2006


On 09/22/06 09:08, David Wolfskill wrote:
> On Sat, Sep 16, 2006 at 04:46:42PM -0700, David Wolfskill wrote:
>> I could use some help:  I seem to overheat my laptop; I'd like to get
>> some idea of how to avoid the overheating, preferably while still
>> getting the work done.
>> ...
> 
> I received several useful suggestions, and I have the problem mitigated
> while I await word from places that advertise that they will do laptop
> repairs.

[..snip..]

> Alexandre "Sunny" Kovalenko discussed the issues at some length, and
> provided a patch to powerd(8) to cap the CPU frequency at or above a
> certain temperature.  As with the "passive cooling," I have not yet
> needed that, so I haven't tested it.
> 
> If there's interest in the patch to powerd(8), I could test it & submit
> a PR -- but I'd rather not if there's not much interest.

I think is interesting - it would be nice to have something like that, 
at least as an option to powerd.  I think linux does something like this.

Another thing I just thought of, was to have two debug.cpufreq.lowest 
settings, like debug.cpufreq.lowest.battery and debug.cpufreq.lowest.ac 
so that one could have a cooler quieter system while plugged in, but 
still get fast enough performance, yet have a lower speed setting for 
battery usage.

If that sounds useful to others, maybe I'll write a patch.

Eric



-- 
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Eric Anderson        Sr. Systems Administrator        Centaur Technology
Anything that works is better than anything that doesn't.
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