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[Tomas Groth <1397287@xxxxxxxxxxxxxxxxxx>]

** Changed in: openlp
       Status: New => In Progress

** Changed in: openlp
     Assignee: (unassigned) => Tomas Groth (tomasgroth)

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https://bugs.launchpad.net/bugs/1397287

Title:
  Crash when changing mediaplayer priority

Status in OpenLP - Worship Presentation Software:
  In Progress

Bug description:
  Found on windows 8.1 using OpenLP 2.1.1 build bzr2447, on dual monitor setup.
  Install VLC and enable it in the Player settings if not done already. 

  Open Settings->Player change the player priority (e.g. move VLC to the
  top or bottom), click save. The live display now disappears, and when
  trying to bring it back by e.g. pressing blank-to-desktop crashes
  OpenLP or gives this traceback:

  Traceback (most recent call last):
    File "D:\OpenLP_Development\OpenLP_Code\openlp\openlp\core\common\openlpmixin.py", line 65, in wrapped
    File "D:\OpenLP_Development\OpenLP_Code\openlp\openlp\core\common\openlpmixin.py", line 61, in wrapped
    File "D:\OpenLP_Development\OpenLP_Code\openlp\openlp\core\ui\slidecontroller.py", line 974, in on_hide_display
    File "D:\OpenLP_Development\OpenLP_Code\openlp\openlp\core\common\openlpmixin.py", line 65, in wrapped
    File "D:\OpenLP_Development\OpenLP_Code\openlp\openlp\core\common\openlpmixin.py", line 61, in wrapped
    File "D:\OpenLP_Development\OpenLP_Code\openlp\openlp\core\ui\slidecontroller.py", line 1015, in hide_plugin
    File "D:\OpenLP_Development\OpenLP_Code\openlp\openlp\core\common\registry.py", line 148, in execute
    File "D:\OpenLP_Development\OpenLP_Code\openlp\openlp\core\common\openlpmixin.py", line 65, in wrapped
    File "D:\OpenLP_Development\OpenLP_Code\openlp\openlp\core\common\openlpmixin.py", line 61, in wrapped
    File "D:\OpenLP_Development\OpenLP_Code\openlp\openlp\core\ui\maindisplay.py", line 429, in hide_display
  RuntimeError: wrapped C/C++ object of type MainDisplay has been deleted

  Besides the traceback above, no errors was in the log.

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