Category: energy

Reducing HP 4720s power consumption under Ubuntu Linux 11.10

Mainly annoyed by the loud fan I looked into ways of reducing power consumption of the HP Probook 4720s and came up with this script:#!/bin/sh -e# Increase filesystem write cache timeoutecho 1500 > /proc/sys/vm/dirty_writeback_centisecsĀ  # Enable power management on all PCI devicesfind /sys/devices/pci* -path "*power/control" -exec bash -c "echo auto > '{}'" \;# Enable power … Continue reading Reducing HP 4720s power consumption under Ubuntu Linux 11.10