[Lucid] Processor not at proper freq

[NoOp]

Thomas Blasejewicz sent me his lshw file from his HP nx9005 (DR582P)
laptop. He reported that he did an network upgrade from 9.04 to 9.10 to
10.04, but everything in 10.04 is working in slow motion (3 secs for
mouse click etc). The cpu is an mobile AMD Athlon(tm) XP2200+ 1.8Ghz
processor, but the lshw shows that it is running at 530Mhz:

description: CPU
product: mobile AMD Athlon(tm) XP2200+
vendor: Advanced Micro Devices [AMD]
physical id: 4
bus info: cpu at 0
version: 6.8.1
slot: mPGA462B
size: 530MHz
capacity: 1795MHz
width: 32 bits
clock: 133MHz
capabilities: fpu fpu_exception wp vme de pse tsc msr pae mce cx8 sep
mtrr pge mca cmov pat pse36 mmx fxsr sse syscall mp mmxext 3dnowext
3dnow up cpufreq

At first I thought that perhaps the processor was 530Mhz and could be
upgraded to 1.8Ghz. But checked and the processor is 1.8Ghz but seems to
be stuck in power save mode.

I found a related symptom on a posting at linuxquestions.org from 2005:
<http://www.linuxquestions.org/questions/linux-laptop-and-netbook-25/suse-not-recognizing-all-of-my-processor-328711/>

Anyone else seen similar & know a relatively simple way to fix?