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My Laptop is sooo Hot!!

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I have just installed Ubuntu 14.04 on my old Thinkpad T410i. But after the machine booted, it is sooo hot that can be used for frying eggs. I searched much online. Some said that it is because Ubuntu 14.04 does not handle dual graphic units well. Though my old T410i does not show two graphic units, I tried installing NVIDIA Driver and it seems help a little to cool down the machine. The steps are as follow:

  1. Add Nouveau to blacklist. Add blacklist nouveau to /etc/modprobe.d/blacklist.conf

  2. Install Nvidia Driver and Prime

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    sudo apt-get install nvidia-340 nvidia-prime

  3. Install Nvidia Prime indicator

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    sudo add-apt-repository ppa:nilarimogard/webupd8
    sudo apt-get update
    sudo apt-get install prime-indicator

    Then reboot the machine.