That the screen got active while calling happened from time to time also for me.
I would say it is a combination of these issues
- problem with the sensitivity of the proximity sensor
(people complain about a too or a too low sensivity…) - the position of the sensor (quite far [2cm] away from the middle of the speaker) and
- the big size of the phone
–> so already a small tilt/move of the phone can move the sensor some mm-cm away from the skin and can cause the screen going active.
I have no idea, how to solve this issue properly, as there is no setting for the sensitivity up to now.
Furthermore I found some bad combinations of factors during making a call:
- speaker is not very loud
- –> needs to bring it very close to the ear
- –> the quite hard edge of the FP2-bumper/case presses against my ear, which I find very uncomfortable (especially for longer calls, which ending up with a hot and red ear for me
) - plus: my headset is the wrong to work with the FP2, as it supports only the wrong standard (which the FP1 had)…
I don’t know if we should push the proximity sensor problem to the bug-list or at least to the feature request list?
Similar issues are reported here and here and [here] (FP2 proximity sensor not reliably turning off screen during calls - See first Post for Workarounds) and here and here