Arch Linux Installation log pt. 7 – Configure Power Management

Since I’m installing on a laptop, I’ll want some power management installed. I will also want to use hibernate and suspend. This article explains how I made it happen.

Install the necessary packages

pacman -S acpi acpid acpitool cpufrequtils pm-utils laptop-mode-tools

Edit /etc/rc.conf and add the following to the MODULES list:

• acpi-cpufreq
• cpufreq-ondemand
• cpufreq-powersave

Add the following to the DAEMONS list:

• cpufreq
• laptop-mode

Edit /etc/conf.d/cpufreq and comment out the min_freq and max_freq lines, and make sure that governor=”ondemand”

Edit /boot/grub/menu.lst and add “resume=/dev/sda2″ to the kernel options

Further reading on the Arch Linux Wiki

• Laptop
• ACPI modules
• ACPID
• Cpufrequtils
• CPU Frequency Scaling
• PM-utils

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