I have tried
# echo powersave > /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor
# echo powersave > /sys/devices/system/cpu/cpu1/cpufreq/scaling_governor
# echo powersave > /sys/devices/system/cpu/cpu2/cpufreq/scaling_governor
# echo powersave > /sys/devices/system/cpu/cpu3/cpufreq/scaling_governor
but its giving me "warning: An error occurred while redirecting file '/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor'
open: Permission denied"
My laptop is overheating due to this please help.
Just to be sure, you did it as root with sudo su as first statement, right ?
echo "powersave" | sudo tee /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor
I think the problem lies elsewhere if your system is running performance governor all the time.
auto-cpufreq in my experience has been extremely good at keeping the cpu cool. Even with my 100 tab firefox open the governor never goes to performance.
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