Comment 2 for bug 1530252

I have figured out why this happens. Apparently the fan settings from "i8kfan" do not get retained when sleeping and resuming the computer. Control of the fans is ceded to whatever system controls them by default. Since this system doesn't ever allow the temperatures to get to 70C, i8kmon never kicks in to issue an i8kfan command.

 I have found that running "i8kfan 0 0" upon resume seems to fix the problem completely. Issuing an i8kfan command gives control back to i8kfan, so that i8kmon can function normally.