Switching the camera from rear to front to rear facing causing the controls to disappear

[Andrew Hayzen]

$ system-image-cli -i
current build number: 254
device name: mako
channel: ubuntu-touch/devel-proposed
alias: ubuntu-touch/utopic-proposed
last update: 2014-09-24 16:38:15
version version: 254
version ubuntu: 20140924
version device: 20140923.1
version custom: mako-0.6

What happened:
1) Start the camera app, note the contols at the bottom (video mode, capture photo, switch camera)
2) Select switch camera to change to the front facing, note the controls are still there
3) Select switch camera again to switch back to rear facing
4) Notice that the controls have disappeared and that the user has to touch the screen for the controls to appear again.

What was expected:
At step 4 for the controls to be visible

[Florian Boucault (fboucault)]

Basic standalone program that reproduces the issue with the MediaPlayer:

http://pastebin.ubuntu.com/8179630/

It breaks the same way with a Camera element instead of the MediaPlayer. It only breaks on device, not on desktop with X11.
Bug is or starts probably somewhere in QDeclarativeVideoRendererBackend.

[Launchpad Janitor (janitor)]

This bug was fixed in the package qtvideo-node - 0.2.1+15.04.20150316-0ubuntu1

---------------
qtvideo-node (0.2.1+15.04.20150316-0ubuntu1) vivid; urgency=medium

  [ CI Train Bot ]
  * New rebuild forced.

  [ Florian Boucault ]
  * Workaround issue where z-ordering of VideoOutput's QML item is
    incorrect when rotated. (LP: #1373607)
 -- CI Train Bot <email address hidden> Mon, 16 Mar 2015 13:16:47 +0000