Image flickers when pressing the screen after video playing ends

[Victor gonzalez]

Enviroment:

current build number: 176
device name: frieza
channel: ubuntu-touch/rc-proposed/bq-aquaris-pd.en
last update: 2016-08-29 08:48:35
version version: 176
version ubuntu: 20160827
version device: 20160809.0
version custom: 20160805--42-20-vivid

Camera app: com.ubuntu.camera 3.0.0.659

Product: BQ M10 FHD
Preconditions:

Steps to reproduce:

1º Record a video with Frieza
2º Watch it with media player
3º Once it ends, tap the screen and check that image flickers

Current result: Image flickers after playing a video
Expected result: Pressing the screen should not make image flickers

Reproducibility: 100%

Add info: video attached

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Jim Hodapp (jhodapp)]

I need an opinion from the Unity8 team on whether they think this might be an issue with Unity8 or perhaps something more specific to mediaplayer-app. I've not been able to reproduce this on any other device other than frieza.

[dinamic (dinamic6661)]

i am able to reproduce this bug 100% on arale rc-poposed. when you tap the screen the video (last still frame) flickers until media player's UI hides and then stops. if you tap again same result, video flickers when the UI appears. so it looks like the flickering it is linked to the UI animation. (UI = the bottom part from where you pause, scroll through the video etc). probably just a mediaplayer bug

[Michał Sawicz (saviq)]

The flickering only happens on the video surface, you can see that the controls are not affected, so there's very little chance any compositor is involved here.

[Jim Hodapp (jhodapp)]

Thanks Saviq, I don't have this device so I've not seen it personally. But that's very good info to have.

[TheJeje20 (thejeje20)]

Meizu Pro 5 OTA14 is also affected.
There is a flickering AND also the last frame of the video is mirrored upside down.