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I have the problem that my screen and input freezes for approx 1 sec about every 30 sec. I have googled a bit and found that this symptom has showed up with several different actual causes. For example something repated to upower. However, none of the solutions I have found have worked in my case. So I'm asking, what is a good starting point to try to locate the error? I would think, for example, that something would appear in dmesg every time the problem happens that would indicate the source of the problem. But nothing there... Ideas where to look anyone?

Btw, I have an Intel graphics chip:

00:02.0 VGA compatible controller: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller (rev 07)

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closed as off topic by Bruno Pereira Jun 12 '12 at 19:30

Questions on Ask Ubuntu are expected to relate to Ubuntu within the scope defined by the community. Consider editing the question or leaving comments for improvement if you believe the question can be reworded to fit within the scope. Read more about reopening questions here.If this question can be reworded to fit the rules in the help center, please edit the question.

This question should instead be filed as a bug report, and as such is off-topic, thanks! Instructions on filing a bug report are here. – Jorge Castro Jun 12 '12 at 19:30

Did you find anything suspicious in the log files? I'd particularly look at the kernel logs as well and the xorg logs.

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Hi, thanks for your input. I looked at syslog, the log you get when typing dmesg (that's the kernel log, right?) and the x log. Nothing there.. :( Should I try to increase the loglevel or something? How do I do that? – Mikael Lindqvist Feb 14 '12 at 8:19

If those freezes occurred when your mouse pointer is at the bottom right corner of your screen, try to install the latest proprietary driver from AMD site.

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No it occurs regardless of where the mouse pointer is. Why should I download an AMD driver when I have an Intel graphics chip set? Or is it a driver for something other than graphics? – Mikael Lindqvist Feb 24 '12 at 9:12

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