Laptop overheating with F 16
Adam Pribyl
pribyl at lowlevel.cz
Wed Sep 14 07:16:51 UTC 2011
> On Tue, 2011-09-13 at 16:55 +0300, Alon Levy wrote:
>> On Mon, Sep 12, 2011 at 09:15:41AM -0800, Erinn Looney-Triggs wrote:
>>> Since moving to Fedora 16 my laptop has been constantly overheating. In
>>> fact with the tracker-store taking up so much CPU it creates a perfect
>>> storm and the system will sometimes shut itself off because of the high
>>> heat in the CPU.
>>>
>>>> From the logs:
>>> [ 2718.556684] intel ips 0000:00:1f.6: MCP limit exceeded: Avg temp
>>> 9497, limit 9000
>>> [ 2778.415413] intel ips 0000:00:1f.6: MCP limit exceeded: Avg temp
>>> 9700, limit 9000
>>> [ 2783.402899] intel ips 0000:00:1f.6: MCP limit exceeded: Avg temp
>>> 9049, limit 9000
>>>
>>
>> Is the laptop actually warm? i.e. maybe it's a reporting error, the temperature
>> is actually ok but reported too high, which would explain why you don't see it
>> in windows?
IMHO the overheating is the other symptom of debugging enabled in the
kernel. Somebody sees F16 slowness because its computer power is not
enought to run on a good speed with all the debug, while different system
is OK to use, but all components are running on it's max, generating
enormous heat. With a bit of dust this causes on a "not so good" designs
overheating.
I had to stop testing Fedora pre-releases until debug is off, because my
test machine gets painfully slow already few Fedora releases back. I have
a feeling that for F15 the debug was disabled all the alfa/beta, but for
F16 it was decided to be enabled it again. I am not sure whether there was
any decision to build both kernels (w and wo debug) for test releases and
let the user decide, but I can not use the kernel with debug enabled.
Adam Pribyl
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