overheating Thinkpad X60s with 7.0-RC1

Henrik Brix Andersen brix at FreeBSD.org
Mon Jan 7 11:27:15 PST 2008

On Sun, Jan 06, 2008 at 02:55:32PM -0800, Jeremy Chadwick wrote:
> I won't even bother mentioning what happens when I run something that's
> CPU or GPU intensive.  I haven't had any crashes, but in some cases,
> I've seen the GPU temperatures reach over 80C -- completely
> unacceptable, and bordering on insane.  It's gotten to the point where
> to use my T60p *quietly*, I'm forced to prop the rear corners up on
> little blocks or whatever, and then place a desk fan nearby, blowing
> cold air more or less underneathe the laptop.  This keeps the fan in low
> speed mode, which is semi-tolerable.

Makes me wonder why you didn't return these laptops for repair...

> I would urge those here to consider booting XP somehow (if possible) and
> running tp4xfancontrol to check actual temperatures, since FreeBSD's
> h/w monitoring capability is spotty at best (I think Linux wins out
> here, but at least there's room for growth...)

... or just use FreeBSD's own acpi_ibm(4) for reading those

$ sysctl dev.acpi_ibm.0.thermal
dev.acpi_ibm.0.thermal: 49 52 -1 47 32 -1 32 -1

Now, who are you calling "spotty"?

http://www.thinkwiki.org/wiki/Thermal_Sensors has some hints about
possible sensor locations, although no one has yet submitted
information on sensor locations for the X60s.

Henrik Brix Andersen <brix at FreeBSD.org>
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