My CPUs recently started running hotter and very active, even when idle.
With the help of other Minters (see viewtopic.php?f=49&t=128226), ...
I used htop to discover the energy hog was Caja File Manager. Specifically, if I stop or kill Caja's "poll-timeout-schedule," listed in System Monitor Process, everything cools down again. Normally, my CPUs stay at low 40C degrees or less, and CPU History activity at 1-4% (flat lining), when idle. When Caja's poll-timeout-schedule is "on," temperatures rise 10-20C degrees, and CPU activity stays at 25-50+%, even when idle!
Idle -- meaning, no applications going, not connected to Internet, .... virtually no human activity. ASUS notebooks are known to stay very cool.
When using the live MATE DVD, the CPUs stay cool and indicate 1-3% activity, when idle. Also, I reinstalled Mint's "/" partition from the Mint DVD to reinstall Caja before any recent updates. Yet, after reinstalling older version, Caja is still making everything hot. (Is there an outside chance my Home folder has something which is compelling Caja to constantly run?)
I have been killing Caja's "poll-timeout-schedule" and using Nautilus from the terminal, but do not have control over my desktop at that time. I will consider Nautilus or other file manager unless Caja starts operating reasonably again.
What is Caja's "poll-timeout-schedule"? Any insight would be much appreciated. Thank you.