Suspend drains battery on IBM T42

[Parv]

in message <20051018104551.0a7e7a45 at localhost>,
wrote Fabian Keil thusly...
>
> KubaTyszko <kuba at lbl.pl> wrote:
> 
> > > Have you tried the suspend to disk?  That's what Windows calls
> > > hibernation.
> > i am afraid that STD does not work under thinkpads and freebsd.
> 
> AFAIK there are ThinkPads out there which support S4BIOS.
> With those laptops and FreeBSD Suspend to Disk should work.

I am using T42 (2373-5TU) and have suspend-to-disk currently
disabled in BIOS (i think) & hw.acpi.s4bios is 0.  Given that if i
can turn on suspend-to-disk & hw.acpi.s4bios changes to non-zero,
how do i go about testing it?


  - Parv

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