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I have 8 Gb RAM and 2 CPU, I install Ubuntu 12.10 on my laptop. The system works strangely. The computer becomes slow for no reasons! I ran top and Htop and there is nothing that uses my CPU or my RAM (I mean nothing that use the whole RAM or CPU). I even change the platform several time(now is Xubuntu). But still it freezes when I do simple things. (Like when I'm editing a document!) But surprisingly when I run a program (that use lots of memory) the laptop functions normal! I have no idea what is the problem! Or how can I find it! I even thought it might be because of Chrome! But the computer freeze even when I'm not using chrome! it freeze for few minutes (the mouse moves really slow, the windows change slowly) and then it's okay for few more minutes!

Can someone tell me what I should do! Or how can I find out what is the problem?

Eliah Kagan
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mahmood
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2 Answers2

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Most of time this kind of behavior depends on temperature problems. If you have difficulties in dissipating heat your cpu/ram/mb/whatever will start idling many times per second: the overall outcome is a general loss of performance.

You can confirm this by running a simple monitoring tool. In ubuntu you have sensors package.

Jack
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I would be interested to learn what you have in the System Log. You can access the System Log by typing 'System Log' into the launcher.

You can also access the same log files from terminal with your favorite text editor by navigating to '/var/log/'...

You can try reproducing the problems that you are experiencing and check to see if any new entries are made to the syslog that would point at what your problem actually is.

running 'dmesg' from terminal and reviewing the output may also hint at the problem...

mattezell
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