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konkor / cpufreq

System Monitor and Power Manager

Home Page:https://konkor.github.io/cpufreq/

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What are power events?

thekswenson opened this issue · comments

commented

Hi @konkor ...
thanks for your great work!

I'm poking around in the preferences' "Power Events" tab:

image

I was guessing that the "On Battery" dropdown had something to do with switching to a power profile when the laptop is unplugged. This is strange though since there is an entry in the dropdown called "Battery", which is not one of the 3 profiles that I see:

image

I'm also unclear as to what the "Level" slider does.

I'm looking for a way to have my machine switch to a power saving profile when I unplug it. Are these setting related to that feature?

commented

So I now have realized that, after a lag of many seconds (this is unpredictable), the power profile is changed when I plug/unplug the machine. This is what I was hoping for!

I've tried playing with the setting in the "Power Events" tab again. I see that when I have "On Battery" set to "Battery" the leaf icon shows up indicating a change in power profile. Upon opening cpufreq I see that the "Default" profile has been selected, and not the "Power Save" profile. The strange thing is that the setting look like the "Power Savings" settings (e.g. only 6 of 8 processors are activated).
When I plug it back in I see the space shuttle and upon opening cpufreq I see the "Balanced" profile is selected. Here is what I think is happening:

  • when plugged in: the profile that I picked in the GUI is the used
  • when unplugged: a profile corresponding to the one chosen for "On Battery" is used. For the "Battery" setting, this uses the "Power Saving" settings but erroneously displays the word "Default".

The profile seems not to change if I set the "Level" slider to something other than 100%.