[Xiaomi Poco F2 Pro (Redmi K30 Pro) ROMs, Kernels, ] MarocoKong:
Hello everybody

Just a random observation, that may or may not be related to that high battery drain...

I'm running an app called cooltool on the Poco to be able to monitor CPU Usage, Net, I/O-Activity and such on the fly.

After clean-flashing first MIUI to get the correct firmware and then the ROM and Magisk I noticed that, after starting the Phone and giving it some time to settle, the CPU Usage basically drops to 0 - 1%.

But then -and even when leaving it just sitting on the desk doing nothing- after something like 15 - 30 minutes or even longer, suddenly CPU usage goes up to around 5 - 7% and stays there apparently forever (or till reboot - see below).

I tried to hunt down the App that was causing this but couldn't identify any...

(Not a big surprise since the phone basically had just Derp itself and some small system tools on it but none ot the "real apps" i use regularly on my daily driver. I'm still in the process of switching to the Poco you see... :) )

The funny part is:

I was also playing around with some kernel-settings via Smartpack Kerned Editor. Smartpack has a topic called "Entropy" in the left side-menu and when I increased "write" to the max of 4096 (which helped my old phones snappiness a huge lot) the CPU increase on the Poco happened way earlier than before, like 2 - 3 minutes after start and login instead of 15+. So that made my quite curious... :)

Hence I DEcreased write to 512 with the effect that Smartpack never reported "100% Available" any more as it was doing before

--> AND the CPU usage seems to stay at the initial low 0 - 1% now !!

Sidenote:

I'm not sure about the following, but I also got some strange reboots with the high entropy setting. Strange because they happened when the phone was just sitting idle on the desk - and out of the blue I suddenly see the Yellow Poco screen appear and the thing reboots... Without any obvious reason and even withouot touching it at all.

Actually I got such reboots even before I started fiddling with kernel settings. The difference was, without fiddling reboots happened after 24+ hours whereas with fiddlling substantially earlier.

So my "wild guess into the blue" at the moment is, that when "Entropy availability" gets to 100% something goes wrong and in the end causes the Poco to restart.

--> Interestingly since I decreased Entropy to 512 I haven't had a single of those reboots any more.

Please keep in mind, that all this may have just been a totally weird coincidence, too and I may be on the completely wrong track here...

But as it is quite easy to change that setting (Smartpack is free on the PlayStore) it may be worth a try to decrease entropy on your devices and see if it changes anything at all...

Good luck !!

P.S: A huge thanks to Schnedi for sharing and maintaining this great ROM. I especially love the fact that it comes with all customization options you could possibly ask for - but with just the most basic set of Apps, so you can decide for yourelf which browser, calendar etc you'd like to use and don't duplicate a bunch of AOSP-Default Apps. Really great work and the 27.06. build seems very stably on my device now that I've decreased entropy a bit more than default of around 800.

Thank you very much, I hope you keep this alive for a long time.

Cheers :D