How to fix battery indication in debian squeeze on Acer Aspire

June 17, 2011 by
Filed under: linux 

Problem:   acpi could not detect battery status, and shows unkown battery as:


Battery 0: Unknown, 0%

Firstly, if you are on Acer Aspire xxxx (mine is Aspire 4745G), you need to upgrade the bios to a new version (such as for 4745G).Just download the bios program here:
Secondly, enable acpi on boot option in /boot/grub/grub.cfg:

linux   /boot/vmlinuz-2.6.32-5-amd64 root=/dev/hda9 ro  acpi=on quiet
Then install powertop to check which process consumes lots of power,and cpufrequtils, laptop-mode-tools to automatically save your power.
sudo apt-get install powertop cpufrequtils laptop-mode-tools
restart you system.

Digg This
Reddit This
Stumble Now!
Vote on DZone
Share on Facebook
Bookmark this on Delicious
Share on LinkedIn
Bookmark this on Technorati
Post on Twitter
Google Buzz (aka. Google Reader)


Comments are closed.