I'm on a general energy saving mission. I've finally swapped my old CRT monitor for a LCD, so the next step it to optimise the PC power usage. It's using an AMD 64 X2 4600+ CPU which I know can trottle down, but seems to be running at a constant 2.4GHz.
A while back I heard about Granola. I've installed it, but when I try to run it (via sudo granola) I get
granola: Error opening scaling governor file '/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor' in read mode granola: Is cpufreq enabled in this kernel and do you have a CPU which supports DVFS? granola: Can't manage DVFS for any CPUs
I'm happy to use other applications if Granola is not optimal or viable, but am not looking to invest in new hardware just now.
Running kernel 2.6.35-25-generic