anyone notice or is this just a weird obscure bug over here?
ever since this android fairphone2 went from android7 latest from 2019 or so to this aprils build of android9 upgrade, it shows in various cpu tools (cpuz but also open source oss cpu info tool (CPU info (open-source)) by kg soft.
apparently two of the four total cpu cores become permanently shot down. they dont show any value or reading for their respective frequencies, no nothing. their frequency and power bars are completely blank, white, not being populated with values.
the other two remaining cores apparently work all the harder. They barely calm down. the first few days when I originally upgraded this phone to android9 I became used to the procedure that i put the phone completely into plane mode, wifi off, and battery saver on whenever I stop using it. Whenever I wake the phone and want to use it, it first kind of runs pretty much amok after such a “deep sleep” state, as first the google play store goes checking for misbehaving apps, even though nothing at all happened. It slept after all. and with only two cores available or something this takes really long, many many minutes the phone barely reacts to touching and typing during this period, and I have still that other ongoing nasty bug of the screen going dark within less than 30seconds no matter what I tried in the past years. no factory reset no nothing helped about this blanking issue.
anyways so when google play store checked the phone, it gets really hot in its cpu area on the back side and even the screen and the battery become hot. it really drains the battery, multiple tens of percentage (value), when being between 20-30% battery and waking it back up, it often ends between 10-20% after such happenings ;(
anyways, eventually it settles and gets better and it cools down. but only two cpu cores are ever being used since this android9 experiment over at fairphone ;(
anyone else observing this? havent read anything about cpu cores getting disabled. maybe its just a sensor and a firmware/wrapper issue or whatever way they brought us the android9 updates without the actual help of the chipset vendor. I kind of read some articles years back about these attempts and similar, but I forgot. But then again this FP2 is really even more erratic and mishaving ever since that Android9 upgrade.
I only use this FP2 for tablet use cases, so no phone calls, no sim(s) inserted, no nada. wifi only, simple surfing only. not even videos or fancy stuff. there are only a few basic apps on this android ever since it became decomissioned still in Android7 phase. Then I kind of looked forward to experiment with the Android9 upgrade for it. But I guess the situation has really become a pain.