Question #77857 on Ubuntu changed:
https://answers.launchpad.net/ubuntu/+question/77857
Status: Open => Answered
Alexander Atanasov proposed the following answer:
Hi,
this file is from kernel configuration, if you want to compile a custom kernel
with the default powersave governor you should read a howto.
But you do not need to compile a kernel. Here is how:
# cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_available_governors
conservative ondemand userspace powersave performance
to check if you have powersave governor
then sudo edit /etc/rc.local and add:
for i in /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor
do
echo powersave > $i
done
save and do not forget to sudo chmod +x /etc/rc.local
Also there is a /etc/init.d/ondemand script which comes from powernowd
package, you may want to disable it.
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