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)