* Amarendra Godbole <amarendra.godb...@gmail.com> [090209 09:30]:
> On Mon, Feb 9, 2009 at 5:47 PM, Nick Holland
> <n...@holland-consulting.net> wrote:
> > Amarendra Godbole wrote:
> >> i recently started using intel wireless on my thinkpad x60, through
> >> the wpi(4) driver. earlier, i had heating issues, which were resolved
> >> by setting hw.setperf to 0, but now i again see my laptop heating up
> >> -- especially below my right palm.
> >>
> >> temperature sensor outputs from sysctl shows:
> >> hw.sensors.acpitz0.temp0=60.05 degC (zone temperature)
> >> hw.sensors.acpitz1.temp0=60.05 degC (zone temperature)
> >> hw.sensors.cpu0.temp0=58.00 degC
> >> hw.sensors.wpi0.raw0=155 (temperature 0 - 285)
> >> hw.sensors.aps0.temp0=57.00 degC
> >> hw.sensors.aps0.temp1=57.00 degC
> >>
> >> wpi shows 155, which is roughly 68 deg C. is the heating because of
> >> wpi? that's what has changed. any pointers to cooling down the laptop
> >> will be appreciated. dmesg, if needed, is here
> >> http://www.obscure.org/~amunix/tmp/dmesg
> >
> > ->
> > OpenBSD 4.4-current (kernel) #11: Wed Jan 21 07:41:19 IST 2009
> >    r...@zimbu.xxxxxxxx:/home/amar/site-specific/builds/kernel
> >
> > uh..
> > what happens if you use a GENERIC snapshot rather than your
> > Franken-kernel?  Seeing stuff like that causes people to lose
> > interest really quickly.
> 
> Ummm, okay - its not the stock kernel, but I had the same heating
> issue with stock kernel too. To confirm, will try with the stock and
> then report my findings.
> 
> > Setting hw.setperf to 0 isn't a "resolution" but a burying the
> > problem where you don't see it, for now...or then.  I don't think
> > wpi is causing your problem, your system doesn't seem to be
> > managing power properly, you buried the problem by reducing power
> > consumption (and performance).
> 
> Agreed. After extensive searching, I came across a lenovo forum thread
> which indicates that X60 series has the wireless card underneath the
> right palm-rest, which makes them hot when wireless is being used.
> Apparently this is a design issue with the X60, and the thread is
> here:
> http://forums.lenovo.com/lnv/board/message?board.id=X_Series_Thinkpads&message.id=22&query.id=204119
> 
> Though, as you say, the real problem for OBSD is not addressed.
> Earlier, the laptop used to heat up considerably even when using wired
> connection (and wireless being disabled by h/w switch). Once
> hw.setperf was set to 0, the heating became bearable (I was suggested
> this workaround on misc@ itself). Since it did the trick, I did not
> bother, until now when the heating re-surfaced. On Windows XP, the
> laptop does NOT heat up so much, which means there is something else
> with OBSD, than merely being an X60 problem.
> 
> I will investigate further with the stock kernel, and then will post
> my findings. Thanks.
> 
> -Amarendra
> 

I can attest to the heat issue tracking i386 -current ever since
installing on my x60s year(s) ago.  The right palm area does get
noticably warmer than when running Windows.  It just never became a big
enough bother for me to do anything about.

Jim

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