[ACPI-sppt] ACPI problem with Sharp PC UM 20

Hi all,

I was recently given a Sharp PC UM-20 by my employer to do some work
with.  I've installed Redhat Linux 9 on it and noted that apm would not
show any battery status but it would suspend the machine.  Didn't take
long to realize this notebook was using ACPI and not apm.

Using kernel 2.4.22 from a mag disk I've complied myself a kernel with
acpi turned on and apm off.  Now I get a whole heap of info about the
battery status etc but my notebook has developed insomnia.  I just got
acpid to turn the notebook off when I press the power button but I just
can't get the notebook to sleep.

I've tried 

   echo S3 > /proc/acpi/sleep

and 

   echo 3 > /proc/acpi/sleep

Nothing I do makes it sleep.  

When I cat /proc/acpi/sleep I get "S0 S3 S4 S5"

When I cat /proc/info I get

version:    20030813
states:    S0 S3 S4 S5

There is a line in /proc/pci that tells me I have an Interl 82440MX
Power Management Controller (rev 0).

I have not been able to find much info on this notebook at all.  The
Sharp site is not that helpful.

I miss the good old days on my first notebook that had a biso that would
do suspend to disk.  One press of a button and it would do a suspend to
disk.  Worked great never had a problem with it.  I've tried to install
swsup but the patches were against 2.4.20... I'll be happy to get just a
suspend to ram working for now.

Any ideas what can I do? I've even tried look through the kernel
source....

Regards Matt