$ lsb_release -a No LSB modules can be found. Distributor ID: Ubuntu Description: Ubuntu 19.04 Launch: 19.04 Codename: disco
System: Acer Swap 10
CPU: Intel Atom Z3735F
CPU max MHz: 1832,6000
CPU min MHz: 499,8000
$cat /sys/gadgets/system/cpu/cpu*/cpufreq/scaling_driver intel_pstate intel_pstate intel_pstate intel_pstate
If the system boots with energy adapter plugged,
lscpu | grep "CPU MHz" reveals completely different values, in vary 510 – 1700 MHz, relying on present CPU load (anticipated regular habits).
If I then unplug the adapter, the CPU frequency drops to about 580 MHz and (with small variations) stays the identical no matter the system load or whether or not I plug the adapter again or not or whether or not I set the scaling governor to “powersave” or “efficiency” via
cpupower frequency-set -g.
To activate the CPU scaling again I have to reboot the system with energy adapter plugged.
I need the system to both return to lively CPU scaling mechanically after I plug the facility adapter again or to stay in lively CPU scaling mode with energy adapter unplugged. Or, Ideally, to have the ability to swap between these eventualities at my very own alternative.
How can I obtain this?