Re: old thinkpad running hot

[Chavdar Ivanov <ci4ic4%gmail.com@localhost>]

On Mon, 4 Oct 2021 at 15:56, Pouya Tafti <pouya+lists.netbsd%nohup.io@localhost> wrote:
>
> My 10-year-old ThinkPad X201 was running very hot (80+ degC).  After
> re-applying the CPU thermal paste and cleaning the fan it now runs much
> cooler (47-53 degC in normal use), but still ca 10-12 degrees hotter
> than under debian, which I ran just to compare (btw envstat(4) doesn't
> show the fan speed).

That's my usual envstat - on an HP EliteBook:
....
      charge state:       N/A
[acpitz0]
       temperature:   103.000  104.000                             degC
[acpitz1]
  cpu0 temperature:    76.000  128.000                             degC
[acpitz2]
       temperature:    75.000  128.000                             degC
[acpitz3]
       temperature:    57.000  128.000                             degC
[acpitz4]
  cpu0 temperature:    20.000  128.000                             degC
[acpitz5]
       temperature:   127.000  128.000                             degC
[acpitz6]
       temperature:     0.000  128.000                             degC
[acpitz7]
       temperature:     0.000  128.000                             degC
[coretemp0]
  cpu0 temperature:    98.000                                      degC
[coretemp1]
  cpu2 temperature:    99.000                                      degC
[coretemp2]
  cpu4 temperature:   103.000                                      degC
[coretemp3]
  cpu6 temperature:    95.000                                      degC
....

I am doing pkg_rolling-replace right now, usually it is somewhat
better; I also replaced the paste sometimes ago, which improved things
at the time, but gradually it returned to the state above.
>
> I enabled estd(1) (w/o much tweaking), but that didn't seem to make any
> difference.
>
> I'm aware this is a known issue, but am unsure of why/how Linux seems
> to manage this better.  Is there something I could contribute to a
> potential fix?
>
> $ uname -v
> NetBSD 9.2_STABLE (GENERIC) #0: Thu Sep 23 10:13:28 UTC 2021  mkrepro%mkrepro.NetBSD.org@localhost:/usr/src/sys/arch/amd64/compile/GENERIC
>
> Thanks,
> Pouya

Chavdar


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