Date: Mon, 25 Sep 2006 08:29:29 -0500 From: Eric Anderson <anderson@centtech.com> To: David Wolfskill <david@catwhisker.org> Cc: acpi@freebsd.org Subject: Re: Avoiding "WARNING: system temperature too high, shutting down soon!"? Message-ID: <4517D9B9.3080401@centtech.com> In-Reply-To: <20060922140804.GA12665@bunrab.catwhisker.org> References: <20060916234642.GC698@bunrab.catwhisker.org> <20060922140804.GA12665@bunrab.catwhisker.org>
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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 -- ------------------------------------------------------------------------ Eric Anderson Sr. Systems Administrator Centaur Technology Anything that works is better than anything that doesn't. ------------------------------------------------------------------------
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