Comment 45 for bug 48556

Perfect, I'm writing 10 minutes later without acpi=off in the grub.

But I have the steps:
* change to edgy repositories
   * sudo nano /etc/apt/sources.list
   * change dapper to edgy in the file
* sudo apt-get update
Ok, is the same.

use Synaptic to upgrade or install the next:
linux-386 (is version 2.6.17-9)
linux-image-2.6.17-10-386 (yes, is -10 and for 386, my synaptic say that the 686 is obsolete and only upgrade no install)
linux-restricted-modules-2.6.17-10-386, this install too the
linux-restricted-modules-common

I install all, and now edit the /boot/grub/menu.lst:
sudo nano /boot/grub/menu.lst
and view that the kernel 2.6.17 have NOT the acpi=off option, and the kernel old YES have acpi=off (you can run the old kernel if all fail)

Now reboot and:
* Change sources.list back to Dapper
* sudo apt-get update

Perfect, I have installed GkrellM and I view the battery state perfectly (before without acpi was impossible detect the battery level, in a laptop that is very important)

Thanks you.