New answers tagged fan
Most likely your system has a bad ACPI bios that uses goofy non standard fan control mechanisms that require proprietary windows drivers and do not work in linux. Your only hope is to install the lm-sensors package and see if sensors-detect can find hardware that fancontrol knows how to take over.
I'd recommend first checking to see if thermald is installed. If not, install it with: sudo apt-get install thermald and see if this helps.
Okay I found the problem. Yesterday I disabled ipv6 following instructions on a post and they were doing it by modifying the init file. It seems it was not a good idea. I put back the init file as it was and everything is working normally.
The kernel team wiki contains a page that helps diagnose power consumption issues: https://wiki.ubuntu.com/Kernel/PowerManagement/IdentifyingIssues In your example, init is really way too busy for some reason, which looks just plain wrong. If this persists and does not change, then one should file a bug, as init should be using only a small slice of CPU.
For users who has "similar" problem: It is important to distinguish if CPU usage goes up when screensaver "activates" OR when lock screen activates. As far as I see from comments this can be mixed up easily (I mixed up as well for the first time). To distuinguish: in terminal run "top" (or use "system-monitor" GUI where CPU usage past is visible), ...
sudo apt-get install lm-sensors sensors Which outputs something like: radeon-pci-0100 Adapter: PCI adapter temp1: +48.5°C (crit = +120.0°C, hyst = +90.0°C)
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