|Summary help replacing me|
|This article discusses solving common power saving tasks, with use of Intel "PowerTOP" utility.|
|Laptop Mode Tools|
PowerTOP is a tool provided by Intel to enable various powersaving modes in userspace, kernel and hardware. It is possible to monitor processes and show which of them are utilizing the CPU and wake it from its Idle-States.
Tips and tricks
PowerTOP suggests a few methods to reduce the power consumption further. You can apply these settings at boot by using module parameters, udev rules and sysctl. For details, see the power saving page.
Error: Cannot load from file
If you get an error like the following when starting powertop, you are likely to have powertop not allowed collecting enough measurement data yet. All you need to do is to keep powertop running for a certain time whilst being on battery.
Loaded 39 prior measurements Cannot load from file /var/cache/powertop/saved_parameters.powertop Cannot load from file /var/cache/powertop/saved_parameters.powertop