Comment 11 for bug 1188647

I recommend switching back to to use intel pstate by default for the 3.11 kernel in Saucy as the overly-high frequency issue seems to be resolved now (from what I recall when I was trying out the 3.10 and 3.11 kernels, this issue was caused by particular settings in the kernel config; changing the settings fixed the issue and the stock Ubuntu 3.11 kernel now has those changed settings).

This is particularly important as the acpi-cpufreq ondemand governor appears to have major issues in 3.11 (at least it does on my laptop - it can't change the cpu frequencies and they remain locked at the lowest setting so system performance is abysmal - see https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1233479).