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I have a Dell XPS 13 Developer Edition laptop with Ubuntu 14.04, that has worked very well for over a year. However, recently I have been experiencing freezes where the machine does not respond to any keyboard or mouse events and I have to power it off. Is there anything to look at after you log back on after a freeze like that?

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Yes. Look at /var/log/kern.log, and check the lines before the reboot (lines with kernel: [ 0.000000] were logged 0.000000 seconds after the reboot, so look at the lines preceding that one.

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  • Thanks for the reply. There are lines in there talking about the CPU core and package temperatures being above a threshold and the clock being throttled. I guess that could cause a freeze if the temperature remained high or went higher. – Scooter Feb 3 '16 at 1:25
  • Yes, if your computer is overheating, it will stop. Find and fix the overheating problem before you kill your computer permanently. – waltinator Feb 3 '16 at 1:29

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