hi there ,

i have acer 3002NLC laptop.
i am using slackware 10.0 and i am unable to configure battery option of laptop hence
it does not show how much battery is left.

a little help would be appreciable.

regards.

You may need to install the kernel drivers for APM. Look at the how-to list on the linux documentation project website for information. You may also find something on tuxmobil or linux on laptops as well. I have provided a couple of links below as a start to help you along.

http://www.tldp.org/HOWTO/HOWTO-INDEX/howtos.html

http://tuxmobil.org/apm_linux.html

I experienced with all my laptops (we are a great family ...) - HP/Compaq, Toshiba, Medion - that the different ACPI options are available with customized kernels (a little bit to do) or with an initrd.gz (only one command to create).

The initial ramdisk is loaded quite after the kernel and contains the kernel modules for ACPI (ac, button, battery, fan, container, processor, thermal, video). I experienced on notebooks that loading the kernel modules with the script /etc/rc.d/rc.modules is NOT the same as loading them with an initrd.gz. With the initrd.gz all ACPI options work fine, with the rc.modules not always.

Type as root in a terminal:

and add the initrd.gz to your lilo.conf or /boot/grub/menu.lst.

This works fine for me ...

Fluxx.

this could be simply a problem of broken dsdt-tables. this table is located in the bios and tells the os the acpi settings, as far as I understood. broken dsdt-tables are very common due to the fact that windows is usually not so "intelligent and exact" as linux is. you should update your dsdt-table. google to find the famous dsdt-page and search for your laptop/pc. download the table and follow the instructions.

With my own Acer laptop (5021 WLMi) with Slamd64, I had to use a 2.6.13 (or newer) kernel and add the option "ec_burst=1" to the append line in Lilo to get the battery status to display.

If that doesn't work, try googling for 'Smart Batteries', as that could be the problem here.