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I just received an update to the linux kernel of Ubuntu 14.04 from 3.13.0-30.54 to 3.13.0-30.55. After I upgrade it the CPU on my laptop is around 70 to 80 Degree Celsius. while on the previous kernel is about 55-65 Degree Celsius, and never reach about 75 Degree, except on some situation like running a Virtual Machine.

I don't know what caused this but I have to downgrade it to the previous 3.13.0-30.54 to prevent overheating on continual use.

Hope there is a new kernel update that fixes this.

Screenshot of the synaptic to show the version of the kernel will be posted later.

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  • And your question is?
    – Wilf
    Jul 5, 2014 at 21:56
  • How to downgrade the kernel properly?
    – user300803
    Jul 5, 2014 at 22:12

1 Answer 1

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if you don't have synaptic package manager .
install synaptic package manager.

$ sudo apt-get install synaptic

open it search in the quick filter for

linux-image

right click the kernel that you are wanting to keep '3.13.0-30.54'
mark for upgrade right click on the kernel that you want to remove '3.13.0-30.54'
mark for removale & lock it by clicking in the menu package => lock version => uncheck auto install
then click on apply

$ sudo apt-get update && sudo apt-get upgrade

pic : finding the kernel version

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