I'm having the same problem - first thought it was a specific problem with dual core processors and opened a bug (#213119).
After seeing this thread I went back to stock speed and voilla - cpu scaling works...
cpu is dual core E2200
mobo is gigabyte ga-p35-ds3l
distro is hardy beta, kernel is 2.6.24-15-generic. had the same prob with gutsy though (kernels 2.6.15-2.6.22).
scaling when O/C works well on XP.
I'm having the same problem - first thought it was a specific problem with dual core processors and opened a bug (#213119).
After seeing this thread I went back to stock speed and voilla - cpu scaling works...
cpu is dual core E2200
mobo is gigabyte ga-p35-ds3l
distro is hardy beta, kernel is 2.6.24-15-generic. had the same prob with gutsy though (kernels 2.6.15-2.6.22).
scaling when O/C works well on XP.