[ACPI-sppt] <not supported> for /proc/acpi/processor/CPU0/performance

I have a Fujitsu Lifebook 2010 with an AMD Athlon-M 1700+.

If I build 2.4.21 (kernel.org) with the 2.4 ACPI patch from 
http://acpi.sourceforge.net/download.html, I get <not supported> in my 
/proc/acpi/processor/CPU0/performance.  Anybody have any hints on what I 
might do to get the performance states in there, so I can slow down my 
clock speed?

Thanks,

joe



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