[Bug 51048] battery not detected

[Hooglander1]

Public bug reported:

Binary package hint: acpi

my NEC P550 's battery is not recognized by Ubuntu 6.06. In Ubuntu 5 it
did work.

hooglander1 at Hooglander1:~$ cat /proc/acpi/battery/BAT1/state
present:                 no

There is only one directory in /proc/acpi/battery/

The output from dmesg:

[17179589.428000] ACPI: PCI Interrupt 0000:06:01.0[A] -> Link [LNKA] -> GSI 5 (l evel, low) -> IRQ 5
[17179596.768000] ACPI: AC Adapter [ACAD] (off-line)
[17179596.880000] pcc_acpi: loading...
[17179596.888000] ACPI: Power Button (FF) [PWRF]
[17179596.888000] ACPI: Lid Switch [LID0]
[17179596.888000] ACPI: Power Button (CM) [PWRB]
[17179596.976000] ibm_acpi: ec object not found
[17179597.008000] ACPI: Battery Slot [BAT1] (battery absent)
[17179597.052000] ACPI: Video Device [GFX0] (multi-head: yes  rom: yes  post: no )
[17179604.264000] ACPI: PCI Interrupt 0000:01:00.0[A] -> Link [LNKA] -> GSI 5 (l evel, low) -> IRQ 5
[17179607.812000] apm: overridden by ACPI.
[17181029.904000]     ACPI-0240: *** Error: Cannot release Mutex [MUT0], not acq uired
[17181029.904000]     ACPI-0517: *** Error: Method parse/execution failed [\_SB_ .BAT1._STA] (Node dffe5960), AE_AML_MUTEX_NOT_ACQUIRED

In Windows it works properly.

** Affects: linux-source-2.6.15 (Ubuntu)
     Importance: Undecided
     Assignee: Simon Law
         Status: Needs Info

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battery not detected
https://launchpad.net/bugs/51048