Found a package "psensor":
sudo apt install psensor
- cputemp
But this is not displaying the CPU core voltages and core clock rates.
If there is DC-voltage drop that causes any issues in clock rate is hard to be analyzed.
And if there is any AC-voltage fluctuations that is harmful for clock speed is hard
to be analyzed also unless the power could be checked at very fast pace, like 100MHz or faster.
For temperature issues low speed ADC is possibly good, but for voltage drop issues may Flash ADC
could be useful.
This system possibly has some issue that prevent it run at full 4.6GHz speed.
Either temperature or voltage drop related, I guess.
The below app has some issues startup:
jari@ENVY-17:~$ indicator-cpufreq
/usr/lib/python3/dist-packages/indicator_cpufreq/indicator.py:20: PyGIWarning: Gtk was imported without specifying a version first. Use gi.require_version('Gtk', '3.0') before import to ensure that the right version gets loaded.
from gi.repository import Gtk
/usr/lib/python3/dist-packages/indicator_cpufreq/indicator.py:21: PyGIWarning: AppIndicator3 was imported without specifying a version first. Use gi.require_version('AppIndicator3', '0.1') before import to ensure that the right version gets loaded.
from gi.repository import AppIndicator3 as appindicator