[8.10] system not recongizing battery

[SingerWang]

I have a Compaq Persario C700 (exact model is C751NR) series laptop. I just did a clean install of 8.10 Ubuntu on the system and I like to report a bug whereas the kernel does not seem to see the battery. Here's a few pieces of critical information:

root@wang-laptop:~#
root@wang-laptop:~#
root@wang-laptop:~# uname -a
Linux wang-laptop 2.6.27-4-generic #1 SMP Wed Sep 24 01:30:51 UTC 2008 i686 GNU/Linux
root@wang-laptop:~# lsmod | grep battery
battery 18436 0
root@wang-laptop:~# grep battery /var/log/messages
Oct 15 02:08:12 wang-laptop kernel: [ 14.756108] ACPI: Battery Slot [BAT0] (battery absent)
Oct 15 02:11:04 wang-laptop kernel: [ 15.068115] ACPI: Battery Slot [BAT0] (battery absent)
Oct 15 02:45:27 wang-laptop kernel: [ 15.525109] ACPI: Battery Slot [BAT0] (battery absent)
Oct 15 02:50:37 wang-laptop kernel: [ 14.761128] ACPI: Battery Slot [BAT0] (battery absent)
Oct 15 02:55:53 wang-laptop kernel: [ 15.621104] ACPI: Battery Slot [BAT0] (battery absent)
Oct 15 03:12:04 wang-laptop kernel: [ 15.756101] ACPI: Battery Slot [BAT0] (battery absent)
Oct 15 03:37:24 wang-laptop kernel: [ 15.608107] ACPI: Battery Slot [BAT0] (battery absent)
root@wang-laptop:~#
root@wang-laptop:~#
root@wang-laptop:~# ls -l /proc/acpi/battery/
total 0
dr-xr-xr-x 2 root root 0 2008-10-15 03:41 BAT0
root@wang-laptop:~# ls -l /proc/acpi/battery/BAT0/
total 0
-rw-r--r-- 1 root root 0 2008-10-15 03:41 alarm
-r--r--r-- 1 root root 0 2008-10-15 03:41 info
-r--r--r-- 1 root root 0 2008-10-15 03:41 state
root@wang-laptop:~# cat /proc/acpi/battery/BAT0/*
present: no
present: no
present: no
root@wang-laptop:~#

Under 8.04 the system sees the battery with no issues under a default install. I know its not a battery/system problem because:

1) I can unplug my AC adapter and I still am able to work (this the battery is good).
2) Under ubuntu 8.04 it works perfectly (the system seems the battery and everything) which was working till about an hour ago when I wiped and went to 8.10.
3) I can boot to Windows and it sees the battery perfectly.

[SingerWang (singer-singerwang)]

I am available for any questions or debugging help if anyone needs; please email me <email address hidden>

[SingerWang (singer-singerwang)]

I did an dist-upgrade and it upgraded me to kernel-2.6.27-7 and it has been fixed; it works now....

please ignore