My Mint Cinnamon system on Lenovo g565 keeps hanging every several hours. I think the problem may be somehow connected with network and desktop environment, because either plugging ethernet cable (even if ethernet is used locally only) or switching to terminal eliminates the problem . If I try to use WiFi without ethernet plugged - system hangs in couple of hours.
I see no common pattern in kernel logs after it. If I am getting the idea right - it means that system can't write to HDD at that moment? I can't use netconsole, because my wifi doesn't support spooling and with ethernet plugged problem doesn't show itself.
How can I diagnose and eleminate the problem in such situation?