[ltp] Weird CPU fan problem on T400, any help appreciated.
Mark Altern
linux-thinkpad@linux-thinkpad.org
Sun, 18 Jul 2010 22:31:55 -0500
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But, for sure, this new kernel helps. Under my old kernel, the fan will kick
will in about 20min of normal use (idle), much shorter than one day and half
this time I experienced.
Thanks.
On Sun, Jul 18, 2010 at 10:30 PM, Mark Altern <mark.altern@gmail.com> wrote:
> Oh, NO!!!
>
> The fan just kicked in suddenly from 1920rmp to 2779rmp, with no particular
> reasons. The CPU temp is as low as 37, and nothing in my t400 is hot. I was
> just surfering the net and it seems suddenly the fan become noisy.
>
> Right now, I am under kernel 2.6.32-24-generic #38~pre201007021000-Ubuntu,
> which obviously helped for one day, and now stopped working!
>
> Further suggestions needed, guys :-(
>
>
>
> On Sun, Jul 18, 2010 at 8:10 PM, Mark Altern <mark.altern@gmail.com>wrote:
>
>> The fan has been operating normally the whole day. So I think the kernel
>> do make the difference.
>>
>> I do not know powertop, which I also can not find anywhere in ubuntu.
>>
>>
>>
>> On Sun, Jul 18, 2010 at 8:01 PM, Daniel Skorka <skorka@gmx.net> wrote:
>>
>>> On Sun, 18 Jul 2010 08:15:13 -0500
>>> Mark Altern <mark.altern@gmail.com> wrote:
>>>
>>> > hey, now I installed the ubuntu 2.6.32-24 pre-proposed linux kernel.
>>> > The fan operates as expected for the last evening. But let me do more
>>> > testing. I will report back.
>>>
>>> Do you know powertop? It should be package in ubuntu, and it would be
>>> interesting to see the differences with different kernels while the
>>> rest of the system is doing the same - i.e. how many wakeups,
>>> distribution of C-states while idle, while playing a movie, etc.
>>>
>>> Daniel
>>> --
>>> The linux-thinkpad mailing list home page is at:
>>> http://mailman.linux-thinkpad.org/mailman/listinfo/linux-thinkpad
>>>
>>
>>
>
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But, for sure, this new kernel helps. Under my old kernel, the fan will kic=
k will in about 20min of normal use (idle), much shorter than one day and h=
alf this time I experienced. <br><br>Thanks. <br><br><div class=3D"gmail_qu=
ote">
On Sun, Jul 18, 2010 at 10:30 PM, Mark Altern <span dir=3D"ltr"><<a href=
=3D"mailto:mark.altern@gmail.com">mark.altern@gmail.com</a>></span> wrot=
e:<br><blockquote class=3D"gmail_quote" style=3D"margin: 0pt 0pt 0pt 0.8ex;=
border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
Oh, NO!!!<br><br>The fan just kicked in suddenly from 1920rmp to 2779rmp, w=
ith no particular reasons. The CPU temp is as low as 37, and nothing in my =
t400 is hot. I was just surfering the net and it seems suddenly the fan bec=
ome noisy. <br>
<br>Right now, I am under kernel 2.6.32-24-generic #38~pre201007021000-Ubun=
tu, which obviously helped for one day, and now stopped working!<br><br>Fur=
ther suggestions needed, guys :-(<div><div></div><div class=3D"h5"><br><br>
<br><div class=3D"gmail_quote">On Sun, Jul 18, 2010 at 8:10 PM, Mark Altern=
<span dir=3D"ltr"><<a href=3D"mailto:mark.altern@gmail.com" target=3D"_=
blank">mark.altern@gmail.com</a>></span> wrote:<br>
<blockquote class=3D"gmail_quote" style=3D"margin: 0pt 0pt 0pt 0.8ex; borde=
r-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">The fan has been =
operating normally the whole day. So I think the kernel do make the differe=
nce. <br>
<br>I do not know powertop, which I also can not find anywhere in ubuntu.<d=
iv><div></div><div><br><br><br><div class=3D"gmail_quote">On Sun, Jul 18, 2=
010 at 8:01 PM, Daniel Skorka <span dir=3D"ltr"><<a href=3D"mailto:skork=
a@gmx.net" target=3D"_blank">skorka@gmx.net</a>></span> wrote:<br>
<blockquote class=3D"gmail_quote" style=3D"margin: 0pt 0pt 0pt 0.8ex; borde=
r-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">On Sun, 18 Jul 20=
10 08:15:13 -0500<br>
<div>Mark Altern <<a href=3D"mailto:mark.altern@gmail.com" target=3D"_bl=
ank">mark.altern@gmail.com</a>> wrote:<br>
<br>
</div><div>> hey, now I installed the ubuntu 2.6.32-24 pre-proposed linu=
x kernel.<br>
> The fan operates as expected for the last evening. But let me do more<=
br>
> testing. I will report back.<br>
<br>
</div>Do you know powertop? It should be package in ubuntu, and it would be=
<br>
interesting to see the differences with different kernels while the<br>
rest of the system is doing the same - i.e. how many wakeups,<br>
distribution of C-states while idle, while playing a movie, etc.<br>
<div><div></div><div><br>
Daniel<br>
--<br>
The linux-thinkpad mailing list home page is at:<br>
<a href=3D"http://mailman.linux-thinkpad.org/mailman/listinfo/linux-thinkpa=
d" target=3D"_blank">http://mailman.linux-thinkpad.org/mailman/listinfo/lin=
ux-thinkpad</a><br>
</div></div></blockquote></div><br>
</div></div></blockquote></div><br>
</div></div></blockquote></div><br>
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