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.