Yes, intel_powerclamp is set to default to 85C as the default thermal
limit.  It spawns these kidle_inject threads to help slow down and cool
the cpu.  I believe there is a way to set the threshold higher, but it's
probably not a good idea.  It would be better to see what is causing the
cpu to get that hot.  Is the fan working as expected, maybe it's gotten
really dusty and needs a cleaning.  I know that minecraft is pretty
graphics intensive, maybe run top before kidle_inject kicks in and see
what the top processes are.

** Changed in: linux (Ubuntu)
       Status: Confirmed => Incomplete

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https://bugs.launchpad.net/bugs/1389077

Title:
  [HP ProBook 4530s] Intel Powerclamp is Slowing CPU

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