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I've been having some problems with Fan speed with my Compaq Presario C700 Laptops (I've got 3 Laptops, all with the same problem).

I install Ubuntu 16.04.1 LTS but the CPU fan always works at the minimum Speed, so after a while the core hit 80°C+ temperatures and the laptops just showdown/close.

I tried lm-sensors but still no changes at fan speed.

Does anyone know what can I do? Do I need to install some other driver or something?

I really don't bother about the noise, I just want the laptops to work and keep them away from heat damage.

Thank you

Intel digital thermal sensor...                             Success!

    (driver `coretemp')

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acpitz-virtual-0
Adapter: Virtual device
temp1:       +73.0°C  (high = +100.0°C, crit = +100.0°C)
Ubuntu User
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Bill Metallinos
  • 11
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2 Answers2

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Perhaps installing thermald (if it's not already being used) would be helpful to control thermal over-runs. Use:

sudo apt-get install thermald

..and see if that controls the system.

Colin Ian King
  • 19,448
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First, I'd check that you have the latest BIOS installed (F.35 Rev. A).

Second, I'd install thermald...

  • sudo apt-get update

  • sudo apt-get install thermald

It comes with a default /etc/thermald/thermal-conf.xml file that will control most computers, but may need to be customized for some computers. See man thermal-conf.xml for some details and examples.

After installing thermald, I'd stop the thermald process, and run it manually as sudo thermald --no-daemon to watch its actions in real time. This real time info can be used to create your own customized thermal-conf.xml file. See man thermald for more information.

Third, older laptops such as yours get clogged with dust, and the processor thermal paste needs refreshing. The easist thing to do is to open the laptop and blow out the dust that settles in the fan assembly, and around the processor and various chips. More difficult is to remove the thermal heat pipe that's mounted on top of the processor chip and replace the thermal paste.

heynnema
  • 73,649