ACPI_OS_NAME: no battery or no ac_adapter

hi,

i've a strange problem on my fujitsu laptop. If i compile my kernel using acpi, everything works fine, but acpi -V doesn't change the value of ac_adapter info. it's always set to "on-line". it doesnt matter if the ac_adapter is plugged in or not. always "on-line".

then i found this: http://sourceforge.net/mailarchive/message.php?msg_id=8560832

so i changed the value of ACPI_OS_NAME in my /usr/src/linux/include/acpi/platform/aclinux.h from "Linux" to "Microsoft Windows NT". Now, ac_adapter changes its value from "on-line" to "off-line" if i unplug the ac_adapter.

But now, acpi -V doesnt show me any battery information. the line is just omitted! so what to do?

under http://andileppert.de/dsdtl.dsl you can find my dsdt. you will see that there are a few _OS commands... what can i do? this is a strange thing...

thanks in advance
Andi Leppert
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