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[Bug 1331322] [NEW] Fan runs either too slow or too fast


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     I am using a laptop, HP Compaq 6910P and is running Ubuntu 14.04,
32 bit edition. When I start my laptop the fan is running optimally, my
processor temperature remains at 60 C at idle. If I start using any
intensive program, the temperature raises up to 90 C but the fan is
running at the same speed. If I immediately restart the laptop, the fan
starts spinning very fast and it doesn't slow down even at idle, when
cpu temperature is just 45 C . This happens with the charger connected.
If I shut down the laptop and let it cool down for an hour and start it
again whithout the charger connected, the fan doesn't spin at all, and
it doesn't starts spinning even if the cpu temp reaches 90 C and laptop
shuts itself down. The radiator is clean and the thermal paste is new.
Please any help ?

** Affects: linux (Ubuntu)
     Importance: Low
         Status: Incomplete

** Tags: bot-comment fan issue overheat trusty
Fan runs either too slow or too fast
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