880572 - [System] Empty screen is displayed shortly after phone call ends when you are at homescreen

Status: RESOLVED WONTFIX

(Firefox OS Graveyard :: Gaia::System, defect)

Description

[(inactive after 6/18) Alive Kuo [:alive]]

Bug 871919 solves the white-screen problem by placing a screenshot temporarily.
However, if the active app is homescreen, you will see the wallpaper (only) after phone call ends.

It's because homescreen window background is transparent,
but currently the getScreenshot API only returns us a JPG, which is not transparent.

To solve this, we need bug 878003 to support returning PNG to gaia.

I will try to solve it by writing a gecko patch.

Set leo?.

+++ This bug was initially created as a clone of Bug #871919 +++

1. Title : [System] White screen is displayed shortly after phonecall ends.
2. Precondition : Call 1st phone from 2nd phone.
3. Tester's Action : End the phonecall on 1st phone.
4. Detailed Symptom (ENG.) : Observe white screen displayed shortly after dial app is closed.
5. Expected : No white screen inbetween should be displayed.
6.Reproducibility: Y
           1)Frequency Rate : 100%
7.Gaia Master/v1-train : Reproduced
8.Gaia Revision: 5cbb19e4bb78a7ad879fbe4b9a841e1c35714f5c
9.Personal email id:  [e-mail]

This is a regression from Bug 856546.

Comment 1

[(inactive after 6/18) Alive Kuo [:alive]]

Gaia patch:

https://github.com/mozilla-b2g/gaia/pull/10263

Comment 2

[Alex Keybl [:akeybl]]

We already resolved bug 871919, we can address this more thoroughly in a future release.

Comment 3

[BMO Automation]

Firefox OS is not being worked on