Leann:
The problem is not with that kernel, the problem is with powernowd not loading 
powernow-k8 because its script at /usr/share/powernowd/cpu-detect.sh is setup 
only for k8 processors with family 15. I've filed a separate bug report with 
included patch to enable Phenom and newer mobile Turion chips to function. The 
2.6.27 kernel that's been released for Intrepid so far works with that patch 
and allows these processors to function properly.

Bug is located here:
https://bugs.launchpad.net/ubuntu/+source/powernowd/+bug/261608

For my mobile Turion (family 17) the patch enables the powernow module without 
the need to install additional packages.
For Hardy, the script should work for Phenom, but the kernel module will not 
support these Turion chips according to my tests. If you have such a module, 
that patch will make powernowd load the module for your chip and fail, causing 
Ubuntu to hang at boot.

Summary: Hardy's kernel works with Phenom but needs a minor patch in
powernowd's script to load the module. Intrepid supports Phenom and the
new Turion chips, but needs a similar patch. In both cases no additional
packages need to be installed.

-- 
No cool n' quiet for amd phenom processors
https://bugs.launchpad.net/bugs/198589
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