In order to see the driver:
cat /sys/devices/system/cpu/cpu*/cpufreq/scaling_driver intel_pstate intel_pstate intel_pstate intel_pstate
Then, to inquire as to the turbo enabled or disabled status:
cat /sys/devices/system/cpu/intel_pstate/no_turbo 1
That means it's on.
To disable it, I get "Operation not permitted":
echo "0" | sudo tee /sys/devices/system/cpu/intel_pstate/no_turbo [sudo] password for cipeos: 0 tee: /sys/devices/system/cpu/intel_pstate/no_turbo: Operation not permitted
Trying a suggestion in a comment under the answer (
sudo echo "0" | sudo tee /sys/devices/system/cpu/intel_pstate/no_turbo) I get the same thing. Even
sudo su before that gives the same.
Trying to find manually the file:
sudo gedit /sys/devices/system/cpu/intel_pstate/no_turbo
It has just one line:
When I try to change it to 0 and save it it says: "Could not save the file “/sys/devices/system/cpu/intel_pstate/no_turbo”." and "You do not have the permissions necessary to save the file. Please check that you typed the location correctly and try again."