Ubuntu
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  1. Bug #1389077
  2. Comment #22

Comment 22 for bug 1389077

Revision history for this message
Lucas (lucas75) wrote : Re: [HP ProBook 4530s] Intel Powerclamp is Slowing CPU

I have a similar problem. As an workarround I changed the order of the thermal devices in the thermald configuration:

gedit /etc/thermald/thermal-cpu-cdev-order.xml

<CoolingDeviceOrder>
<CoolingDevice>cpufreq</CoolingDevice>
<CoolingDevice>rapl_controller</CoolingDevice>
<CoolingDevice>intel_pstate</CoolingDevice>
<CoolingDevice>Processor</CoolingDevice>
<CoolingDevice>intel_powerclamp</CoolingDevice>
</CoolingDeviceOrder>

I tested with the following orders, both woked fine:
   rapl, pstate, cpufreq
   cpufreq, rapl, pstate