Screen active during call causes accidental touch events

Bug Reports
#1

REPRODUCIBILITY: 100%
OS VERSION: 4.4.0.72
HARDWARE: XA2
UI LANGUAGE: Polish
REGRESSION: yes

DESCRIPTION:

I have upgraded to 4.4.0.72 yesterday. And promptly started to observe the events described below. It happened a bunch of times during the day. I have naver observed this before installing 4.4.0.72

PRECONDITIONS:

STEPS TO REPRODUCE:

  1. accept a call and place the phone next to your ear

EXPECTED RESULT:

Screen blanks out and becomes insensitive to touch events when the phone is held next to an ear.

ACTUAL RESULT:

Calls muted. Calls held. Unwanted call recordings started.

MODIFICATIONS:

None

ADDITIONAL INFORMATION:

1 Like
#2

Just tested with the 10 III:

  • dial
  • take phone to ear → screen goes off
  • take phone from ear → screen goes on after one second
  • take phone back to ear → screen goes off.

Maybe it’s a XA2 thing?

#3

Maybe the hall/proximity sensor is disfunctional?

Can you check with CSD tool?

#4

I sometimes have the same problem. Experienced this on XA2 and 10iii. I think it depends on how you are holding tge phone during a call. When answering a call i just press the power button to turn of the screen. Problem solved.

#5

You’re holding it wrong

1 Like
#6

Exactly that sentence came to my mind, when i wrote my last post :grinning:

#7

Sounds reasonable. I remember now, holding the upper part of my XA2 esp. near to my ear.
…
…
Just did the experiment with my 10 III: If the upper part is not near my ear the screen activates after one second.
I think, that is where the proximity sensor is placed.

#8

So I found info on CSD tool, and conducted a test on the proximity sensor, which ended up red as in FAILED. I have since restarted the device, and the test passes, and I can say the screen also properly goes off. So either an intermittent bug or some race.

Thanks everyone for tips.

2 Likes
#9

Would you mind marking this as “solved” then please.