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Hi I am quite new to ubuntu. I am using ubuntu 16.04 in dual boot. My laptop is ASUS bought a little bit more than 3 years ago, with:

Memory: 3.7GiB Processor: Intel® Core™ i7-4500U CPU @ 1.80GHz × 4 Graphics: Intel® Haswell Mobile

The issue is my laptop keeps on freezing, and it's getting more frequent than before. Surprisingly, it also freezes when using ubuntu live from usb.

I have tried updating the kernel, uninstall and reinstall ubuntu but it keeps on freezing. I was thinking that this could be due to a hardware problem, for example, overheating (due to fans not working).

So, here is the output from psensor which I think shows there is no problem with the fan.

image from psensor

EDITED

Here is the image from var/log/syslog

enter image description here

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Update 11/02/2017

I am quite sure that the problem is related to hardware, since it only happens when the laptop is not in horizontal position, or when you put some pressure on the laptop. My laptop has been running smoothly since I started avoiding these two things a week ago.

mohd
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1 Answers1

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I experienced a similar problem. I am running ubuntu 16.04.1 with Kernel 4.10.0-30-generic.

I replicated the bug on another distro using a different kernel 4.9 -- debian stable lxde running from a live usb.

After reading many fora and going through several logs, I realised this is nothing but the c-state kernel bug, or at least it has the same solution.

The steps described by Doug solved my problem.

Alex
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