LinuxQuestions.org
Visit Jeremy's Blog.
Go Back   LinuxQuestions.org > Forums > Linux Forums > Linux - Laptop and Netbook
User Name
Password
Linux - Laptop and Netbook Having a problem installing or configuring Linux on your laptop? Need help running Linux on your netbook? This forum is for you. This forum is for any topics relating to Linux and either traditional laptops or netbooks (such as the Asus EEE PC, Everex CloudBook or MSI Wind).

Notices

Reply
 
Search this Thread
Old 10-06-2010, 12:29 AM   #1
jasohl
Member
 
Registered: Oct 2006
Location: Seattle, Washington
Distribution: Gentoo, LinuxMint, Arch Linux
Posts: 99

Rep: Reputation: 18
Acer Aspire - ACPI: Battery Absent


I recently resolved this problem with my Acer Aspire One netbook. I spent many, many hours googling and reading forums to little avail. I hope this post will help others avoid that. (I also have this problem on my Acer Aspire 6930 but have not been able to apply the fix yet. See below.)
On my netbook I use a distro called Peppermint Linux. It is based on Ubuntu Lucid. The kernel I have is 2.6.32
The main symptom I had was with Gnome Power Manager. When I boot my netbook on battery GPM shows it as on AC and doesn't detect the battery. Also GPM is supposed to have a tab that says On Battery Power so that you can have different power options then when on AC but it wasn't there.
If I queried the battery from a terminal GPM would register the battery and dim the display:
Code:
cat /proc/acpi/battery/BAT0/state
(But the "On Battery Power" tab was still gone.)
In dmesg there was a entry like this:
Code:
ACPI: Battery Slot [BAT0] (battery absent)
This was obviously what was causing GPM to have problems.
(I hope I put enough keywords in here for other people with the problem.)

The fix for me:
Update the BIOS.

The netbook I bought in August had v1.15 of the BIOS. The latest one offered by Acer was v1.25. The BIOS updates available from Acer are .exe files. I happen to be dual booting my netbook so was able to easily update it.
Now in dmesg it says
Code:
ACPI: Battery Slot [BAT0] (battery present).
GPM works perfectly. It now has a tab for On AC Power and On Battery Power.

On a side note, my Acer Aspire 6930 does not dual boot. So I am trying to find a way to update the BIOS. There is supposed to be a couple ways to do it. I tried using FreeDOS but it will not boot properly. Its not as much a priority since it generally stays on my desk, plugged in. When I get that updated I will let you know what happens.
 
Old 10-07-2010, 03:30 PM   #2
rokytnji
Senior Member
 
Registered: Mar 2008
Location: Waaaaay out West Texas
Distribution: AntiX 13 , Various Puppys (MacPup,Slack0),MX-14
Posts: 2,503
Blog Entries: 16

Rep: Reputation: 794Reputation: 794Reputation: 794Reputation: 794Reputation: 794Reputation: 794Reputation: 794
In case you are unaware.

http://flashrom.org/Flashrom

it's a utility for flashing various devices that at one time could only be flashed using Windows or DOS based flashing utilities. The good news is that flashrom works with Linux and is available in it's own liveCD version, or it can be found on several other liveCDs such as the latest SystemRescueCD, and Grml. Check and see if latest PartedMagic Iso has included this tool also.

Check for it in Peppermint also if you wish with
Code:
sudo apt-cache policy flashrom
My AntiX readout on Asus EEEPC 701SD

Code:
biker@antiX1:~$ apt-cache policy flashrom
flashrom:
  Installed: (none)
  Candidate: 0.9.2+r1141-2
  Version table:
     0.9.2+r1141-2 0
        500 http://ftp.us.debian.org/debian/ testing/main i386 Packages

Last edited by rokytnji; 10-07-2010 at 03:33 PM.
 
  


Reply

Tags
acer, acpi, battery, bios, ubuntu


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Acer Aspire One 532H Random Battery Disconnected messages Gavin Harper Slackware 2 06-08-2010 06:42 AM
Weird Battery Monitor with FC6 and Acer Aspire 5601 connected90 Linux - Laptop and Netbook 2 01-04-2007 05:05 PM
how implement battery status on acer aspire....kernel 2.6.15.6 sarajevo Debian 3 03-24-2006 10:06 AM
ACPI battery on Acer TM4500 jnsg Linux - Laptop and Netbook 16 11-09-2005 02:12 AM
Acer Aspire 1680 ACPI adrislayer Linux - Laptop and Netbook 2 03-31-2005 03:55 PM


All times are GMT -5. The time now is 08:47 PM.

Main Menu
My LQ
Write for LQ
LinuxQuestions.org is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
Syndicate
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
identi.ca: @linuxquestions
Facebook: linuxquestions Google+: linuxquestions
Open Source Consulting | Domain Registration