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I am experiencing high CPU usage and overheating with Ubuntu 14.04 on a Dell Inspiron-N5110 laptop, seemingly for no reason.

  • CPU: Intel(R) Core(TM) i3-2350M CPU @ 2.30GHz Cadencé à 2.30 GHz
  • RAM: 4 GB
  • Multimedia:
    • Intel Corporation 6 Series/C200 Series Chipset Family High Definition Audio Controller
    • NVIDIA Corporation GF108 High Definition Audio Controller
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    If the CPU usage is high, then there has to be at least one program using it. What does top show? – Adaephon Oct 15 '14 at 11:27
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    Also, it seems that you have an dedicated graphics adapter which may also cause overheating. Are you sure it is the CPU and how do you know? – Adaephon Oct 15 '14 at 11:32
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    top - 13:32:39 up 2:54, 2 users, load average: 0,15, 0,27, 0,52 Tasks: 176 total, 1 running, 175 sleeping, 0 stopped, 0 zombie %Cpu(s): 1,8 us, 0,8 sy, 0,0 ni, 97,5 id, 0,0 wa, 0,0 hi, 0,0 si, 0,0 st KiB Mem: 4049512 total, 1683728 used, 2365784 free, 98332 buffers KiB Swap: 4097020 total, 0 used, 4097020 free. 996644 cached Mem – Ramy Oct 15 '14 at 11:33
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    @Adaephon high temperature and noise. – Ramy Oct 15 '14 at 11:43
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    From what I can see your PC is not doing anything of note at the moment (97,5 id(le)). Is it overheating right now? Also, you can just edit the question to add more information. If you indent the block by for or surround it with <pre> </pre> it will make a code block and line breakes are preserved. – Adaephon Oct 15 '14 at 11:43

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