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[Martin Wimpress <1683393@xxxxxxxxxxxxxxxxxx>]

This is ultimately caused by using the gtk2 style in kdeenlive which
cause it to segfault. ubuntu-mate-settings make this the default to try
and improve the visual integration of kdeenlive.

I've removed the setting overlay for kdenlive.

** Also affects: ubuntu-mate-settings (Ubuntu)
   Importance: Undecided
       Status: New

** No longer affects: ubuntu-mate

** Changed in: ubuntu-mate-settings (Ubuntu)
       Status: New => In Progress

** Changed in: ubuntu-mate-settings (Ubuntu)
     Assignee: (unassigned) => Martin Wimpress (flexiondotorg)

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https://bugs.launchpad.net/bugs/1683393

Title:
  Kdenlive fails to launch

Status in kdenlive package in Ubuntu:
  New
Status in ubuntu-mate-settings package in Ubuntu:
  In Progress

Bug description:
  Kdenlive fails to launch with the following error

  
  Invalid Context= "stock" line for icon theme:  "/usr/share/icons/ubuntu-mono-dark/stock/16/"
  Invalid Context= "stock" line for icon theme:  "/usr/share/icons/ubuntu-mono-dark/stock/22/"
  Invalid Context= "stock" line for icon theme:  "/usr/share/icons/ubuntu-mono-dark/stock/24/"
  Invalid Context= "stock" line for icon theme:  "/usr/share/icons/ubuntu-mono-dark/stock/32/"
  Invalid Context= "stock" line for icon theme:  "/usr/share/icons/ubuntu-mono-dark/stock/48/"
  Invalid Context= "stock" line for icon theme:  "/usr/share/icons/ubuntu-mono-dark/stock/64/"
  Invalid Context= "stock" line for icon theme:  "/usr/share/icons/ubuntu-mono-dark/stock/128/"
  Invalid Context= "stock" line for icon theme:  "/usr/share/icons/ubuntu-mono-dark/stock/16/"
  Invalid Context= "stock" line for icon theme:  "/usr/share/icons/ubuntu-mono-dark/stock/22/"
  Invalid Context= "stock" line for icon theme:  "/usr/share/icons/ubuntu-mono-dark/stock/24/"
  Invalid Context= "stock" line for icon theme:  "/usr/share/icons/ubuntu-mono-dark/stock/32/"
  Invalid Context= "stock" line for icon theme:  "/usr/share/icons/ubuntu-mono-dark/stock/48/"
  Invalid Context= "stock" line for icon theme:  "/usr/share/icons/ubuntu-mono-dark/stock/64/"
  Invalid Context= "stock" line for icon theme:  "/usr/share/icons/ubuntu-mono-dark/stock/128/"

  (kdenlive:20906): GLib-GObject-WARNING **: cannot register existing
  type 'GdkDisplayManager'

  (kdenlive:20906): GLib-CRITICAL **: g_once_init_leave: assertion
  'result != 0' failed

  (kdenlive:20906): GLib-GObject-CRITICAL **: g_object_new: assertion
  'G_TYPE_IS_OBJECT (object_type)' failed

  (kdenlive:20906): GLib-GObject-WARNING **: invalid (NULL) pointer
  instance

  (kdenlive:20906): GLib-GObject-CRITICAL **: g_signal_connect_data:
  assertion 'G_TYPE_CHECK_INSTANCE (instance)' failed

  (kdenlive:20906): GLib-GObject-WARNING **: invalid (NULL) pointer
  instance

  (kdenlive:20906): GLib-GObject-CRITICAL **: g_signal_connect_data:
  assertion 'G_TYPE_CHECK_INSTANCE (instance)' failed

  (kdenlive:20906): GLib-GObject-WARNING **: cannot register existing
  type 'GdkDisplay'

  (kdenlive:20906): GLib-CRITICAL **: g_once_init_leave: assertion
  'result != 0' failed

  (kdenlive:20906): GLib-GObject-CRITICAL **: g_type_register_static:
  assertion 'parent_type > 0' failed

  (kdenlive:20906): GLib-CRITICAL **: g_once_init_leave: assertion
  'result != 0' failed

  (kdenlive:20906): GLib-GObject-CRITICAL **: g_object_new: assertion 'G_TYPE_IS_OBJECT (object_type)' failed
  Segmentation fault (core dumped)

  
  Since installing Ubuntu Mate 17.04 it will launch 5% of the time and then crash. The rest of the time when you click on Kdenlive, it simply does nothing and will not open.

  I am running Ubuntu Mate 17.04 with the latest updates. I tried
  reinstalling it but the problems still persist.

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