Re-opening since I have the same issues with 10.04 LTS 2.6.32-26-generic
#48-Ubuntu SMP Wed Nov 24 10:14:11 UTC 2010 x86_64 GNU/Linux

and other users have stated they have it with 10.10. cat 
/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies
2535000 2534000 1600000 
cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq 
1600000

Current CPU temp is showign 51C.. Which is not unreasonable for a
plugged in laptop.  But I do believe it is heat related as far as when
this issue kicks in.

Pete
and  scaling_max_frequency shows:


I have a dell precision M6400 with a quad core processor, and 
scaling_available_frequencies shows:


** Changed in: linux (Ubuntu)
       Status: Expired => New

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https://bugs.launchpad.net/bugs/88899

Title:
  cpufreq locked in slowest speed

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