Proximity does not turn screen on during a call

[Michał Sawicz]

This has regressed a week or two ago. It's not reliably reproducible, but bites me almost every time I want to end a call. It might be incoming calls only, or maybe only after a minute.

Steps:
* go on a call
* cover the proximity sensor
* uncover the proximity sensor

Expected:
* screen goes off/on as you cover/uncover the sensor

Current:
* screen goes off but not back on

$ system-image-cli -i
current build number: 90
device name: krillin
channel: ubuntu-touch/rc-proposed/bq-aquaris.en
last update: 2015-08-08 21:08:55
version version: 90
version ubuntu: 20150807.1
version device: 20150716-fb60d96
version custom: 20150717-820-30-25-vivid

[Sebastien Bacher (seb128)]

confirmed, it doesn't turn the screen off when you remove the phone from your ear to hang up, quite annoying

[Tiago Salem Herrmann (tiagosh)]

I reverted unity-system-compositor to commit 236 and the bug is gone. Not sure what commit actually introduced the issue though.

[Bill Filler (bfiller)]

Simple steps to reproduce:

1) make a phone call
2) put phone to ear and leave it there for 1 minute or longer
3) move phone away from ear

Expected results:
screen should turn on

Actual results:
screen does not turn on

[Peter Bittner (peter-bittner)]

Potential duplicate: https://bugs.launchpad.net/canonical-devices-system-image/+bug/1493574