Actually if you check the brightness sensor output, you’ll notice the sensor is rather limited, it cuts off way too soon, on both sides (dark and bright), thus erroneously reporting total darkness or full sunlight when it shouldn’t. It also has quite a steep response curve (resolution too low?).
If the proximity IR sensor is of similar built (or even the same part!) I am not surprised it reacts violently to passing tree shadows: Its output must be reporting a change from full light to total darkness with each shadow passing…
I actually can’t, because I don’t have the order number for the smartphone. I can’t even activate my warranty, since I don’t have the original receipt. I wish I could somehow get the order number from the IMEI.
Independet from environmental lightning conditiones after a random operating time (0-30 minutes) the display will dimm down to approx. 30-50% brigthness. Too less, to read comfortabely or see what e.g. car-navigation at a sunny day shows. After an additional random time (minutes, houres) suddenly the brightness will return to full brightness. I could not find any correlation to a specific app or operating mode. Seems to be compleley random when and how long the display will become dimmed down.
Is there a correlation do Android 12 - Update? When will bugfix be available?
SW-Bug in FP4?
Random brightness changes: Just for the record, I got some too yesterday. I was reading something on the phone in a not very brightly lit room, without moving (nothing to change the amount of light the brightness sensor receives), and yet, all of a sudden, it got brighter. Then, a couple seconds later, it dimmed back to the previous level.
I moved the phone a little to see if I could trigger it again, to no avail. Go figure.
I have noticed that after updating to android 12 (kpn, so not too long ago) my screen brightness will randomly drop even though the screen brightness is at full. I have also noticed that when it happens the last quarter of the screen brightness setting doesn’t actually dim the screen more as it seems to have hit the lowest setting. The lower max brightness makes it really difficult to see the screen in sunlight, and is quite annoying. Sometimes it randomly becomes brighter again though. I have checked my settings and extra dim is off.
The System Table reports screen_brightness is 255 when the brightness is correct. It also reports that value when it is incorrect. The slider, I expect, is operating correctly since manually modifying the Table does not actually change the brightness of the display.
The issue is probably at a lower level in the OS.
I’m quite confident that as someone mentioned previously, heat is the deciding factor, because I’m currently keeping my phone at 255 brightness to cause the problem to occur again, yet it’s not, and this place is tremendously more cool than where I have been using it at maximum brightness.
[ ] I’ve yet to evaluate whether setting a value higher than 255 (yes, it’s possible) when the brightness is buggy tricks it into setting the correct brightness.
Happened to me very often the last days. Already thought it was getting better. Very annoying since it is getting brighter in germany now.
Meanwhile I doubt that it has sth to do with heat. Also happened to me when the phone was quite cold.