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I have dual boot system on my laptop (Windows 7 and Ubuntu 14.04 LTS). I do not face any freezing problem with Windows 7, it runs smoothly.

Whereas sometime in random interval I face freezing problem with Ubuntu. At this moment mouse key boards does not work. This problem persist even after upgrading BIOS.

I have tried existing solution with no luck. Please let me know what all other information is required to understand this problem.

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First check your laptop specification. Basically there is much trouble with some hardware for you kernel. and also the performance of your integrated graphic.

In case someone else finds this, a kernel upgrade fixed a similar problem. I had Ubuntu 14.04.2 kernel version 3.16.0-30, and doing a "apt -y upgrade" ended me up at kernel 3.16.0-49, and that solved the problem.

  • As of now my kernel version is 3.13.0-71-generic. I will try to upgrade to kernel 3.16.x and let you know if I face similar issue. – snoop Dec 15 '15 at 8:05
  • Now, I have upgraded kernel version to 3.16.0-55-generic, still same issue. No improvements. – snoop Dec 15 '15 at 14:24

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