Hello,

I think there is a similar issue with Digikam 5.3 using Ubuntu Desktop 16.04 up to date with multiscreen (2 x 1920x1080).

libdbusmenu-qt5 0.9.3+16.04.20160218-0ubuntu1
Ubuntu 4.4.0-49-generic

Logs are :

--
0x48bc490 void QWindowPrivate::setTopLevelScreen(QScreen*, bool) ( QScreen(0x1ee1d40) ): Attempt to set a screen on a child window.
0x48bbe80 void QWindowPrivate::setTopLevelScreen(QScreen*, bool) ( QScreen(0x1ee1d40) ): Attempt to set a screen on a child window.
0x48bb960 void QWindowPrivate::setTopLevelScreen(QScreen*, bool) ( QScreen(0x1ee1d40) ): Attempt to set a screen on a child window.
0x476a8b0 void QWindowPrivate::setTopLevelScreen(QScreen*, bool) ( QScreen(0x1ee1d40) ): Attempt to set a screen on a child window.
0x48bb410 void QWindowPrivate::setTopLevelScreen(QScreen*, bool) ( QScreen(0x1ee1d40) ): Attempt to set a screen on a child window.
0x4902c70 void QWindowPrivate::setTopLevelScreen(QScreen*, bool) ( QScreen(0x1ee1d40) ): Attempt to set a screen on a child window.
0x4901b70 void QWindowPrivate::setTopLevelScreen(QScreen*, bool) ( QScreen(0x1ee1d40) ): Attempt to set a screen on a child window.
0x4904550 void QWindowPrivate::setTopLevelScreen(QScreen*, bool) ( QScreen(0x1ee1d40) ): Attempt to set a screen on a child window.
0x46882c0 void QWindowPrivate::setTopLevelScreen(QScreen*, bool) ( QScreen(0x1ee1d40) ): Attempt to set a screen on a child window.
0x46e7a70 void QWindowPrivate::setTopLevelScreen(QScreen*, bool) ( QScreen(0x1ee1d40) ): Attempt to set a screen on a child window.
0x4305560 void QWindowPrivate::setTopLevelScreen(QScreen*, bool) ( QScreen(0x1ee1d40) ): Attempt to set a screen on a child window.
0x4613e80 void QWindowPrivate::setTopLevelScreen(QScreen*, bool) ( QScreen(0x1ee1d40) ): Attempt to set a screen on a child window.
0x44a0ab0 void QWindowPrivate::setTopLevelScreen(QScreen*, bool) ( QScreen(0x1ee1d40) ): Attempt to set a screen on a child window.
0x47d1d40 void QWindowPrivate::setTopLevelScreen(QScreen*, bool) ( QScreen(0x1ee1d40) ): Attempt to set a screen on a child window.
0x4845280 void QWindowPrivate::setTopLevelScreen(QScreen*, bool) ( QScreen(0x1ee1d40) ): Attempt to set a screen on a child window.
0x487d700 void QWindowPrivate::setTopLevelScreen(QScreen*, bool) ( QScreen(0x1ee1d40) ): Attempt to set a screen on a child window.
0x4790bc0 void QWindowPrivate::setTopLevelScreen(QScreen*, bool) ( QScreen(0x1ee1d40) ): Attempt to set a screen on a child window.
0x476a8b0 void QWindowPrivate::setTopLevelScreen(QScreen*, bool) ( QScreen(0x1ee1d40) ): Attempt to set a screen on a child window.
0x4beb3e0 void QWindowPrivate::setTopLevelScreen(QScreen*, bool) ( QScreen(0x1ee1d40) ): Attempt to set a screen on a child window.
0x4beae50 void QWindowPrivate::setTopLevelScreen(QScreen*, bool) ( QScreen(0x1ee1d40) ): Attempt to set a screen on a child window.
0x4bea4a0 void QWindowPrivate::setTopLevelScreen(QScreen*, bool) ( QScreen(0x1ee1d40) ): Attempt to set a screen on a child window.
0x4bec850 void QWindowPrivate::setTopLevelScreen(QScreen*, bool) ( QScreen(0x1ee1d40) ): Attempt to set a screen on a child window.
0x4becd50 void QWindowPrivate::setTopLevelScreen(QScreen*, bool) ( QScreen(0x1ee1d40) ): Attempt to set a screen on a child window.
0x4bed210 void QWindowPrivate::setTopLevelScreen(QScreen*, bool) ( QScreen(0x1ee1d40) ): Attempt to set a screen on a child window.
0x4bed6d0 void QWindowPrivate::setTopLevelScreen(QScreen*, bool) ( QScreen(0x1ee1d40) ): Attempt to set a screen on a child window.
0x4bea9e0 void QWindowPrivate::setTopLevelScreen(QScreen*, bool) ( QScreen(0x1ee1d40) ): Attempt to set a screen on a child window.
0x4c45440 void QWindowPrivate::setTopLevelScreen(QScreen*, bool) ( QScreen(0x1ee1d40) ): Attempt to set a screen on a child window.
0x4c45c80 void QWindowPrivate::setTopLevelScreen(QScreen*, bool) ( QScreen(0x1ee1d40) ): Attempt to set a screen on a child window.
0x4c478c0 void QWindowPrivate::setTopLevelScreen(QScreen*, bool) ( QScreen(0x1ee1d40) ): Attempt to set a screen on a child window.
0x4c83e00 void QWindowPrivate::setTopLevelScreen(QScreen*, bool) ( QScreen(0x1ee1d40) ): Attempt to set a screen on a child window.
0x4cc1e00 void QWindowPrivate::setTopLevelScreen(QScreen*, bool) ( QScreen(0x1ee1d40) ): Attempt to set a screen on a child window.
0x4d08920 void QWindowPrivate::setTopLevelScreen(QScreen*, bool) ( QScreen(0x1ee1d40) ): Attempt to set a screen on a child window.
0x4d66b70 void QWindowPrivate::setTopLevelScreen(QScreen*, bool) ( QScreen(0x1ee1d40) ): Attempt to set a screen on a child window.
0x4e9e120 void QWindowPrivate::setTopLevelScreen(QScreen*, bool) ( QScreen(0x1ee1d40) ): Attempt to set a screen on a child window.
0x4bec850 void QWindowPrivate::setTopLevelScreen(QScreen*, bool) ( QScreen(0x1ee1d40) ): Attempt to set a screen on a child window.
0x4f189a0 void QWindowPrivate::setTopLevelScreen(QScreen*, bool) ( QScreen(0x1ee1d40) ): Attempt to set a screen on a child window.
0x4f7dda0 void QWindowPrivate::setTopLevelScreen(QScreen*, bool) ( QScreen(0x1ee1d40) ): Attempt to set a screen on a child window.
0x4eed1a0 void QWindowPrivate::setTopLevelScreen(QScreen*, bool) ( QScreen(0x1ee1d40) ): Attempt to set a screen on a child window.
void DBusMenuExporterPrivate::fillLayoutItem(DBusMenuLayoutItem*, QMenu*, int, int, const QStringList&): No id for action
void DBusMenuExporterPrivate::fillLayoutItem(DBusMenuLayoutItem*, QMenu*, int, int, const QStringList&): No id for action
void DBusMenuExporterPrivate::fillLayoutItem(DBusMenuLayoutItem*, QMenu*, int, int, const QStringList&): No id for action
void DBusMenuExporterPrivate::fillLayoutItem(DBusMenuLayoutItem*, QMenu*, int, int, const QStringList&): No id for action
void DBusMenuExporterPrivate::fillLayoutItem(DBusMenuLayoutItem*, QMenu*, int, int, const QStringList&): No id for action
void DBusMenuExporterPrivate::fillLayoutItem(DBusMenuLayoutItem*, QMenu*, int, int, const QStringList&): No id for action
void DBusMenuExporterPrivate::fillLayoutItem(DBusMenuLayoutItem*, QMenu*, int, int, const QStringList&): No id for action
void DBusMenuExporterPrivate::fillLayoutItem(DBusMenuLayoutItem*, QMenu*, int, int, const QStringList&): No id for action
void DBusMenuExporterPrivate::fillLayoutItem(DBusMenuLayoutItem*, QMenu*, int, int, const QStringList&): No id for action
void DBusMenuExporterPrivate::fillLayoutItem(DBusMenuLayoutItem*, QMenu*, int, int, const QStringList&): No id for action
void DBusMenuExporterPrivate::fillLayoutItem(DBusMenuLayoutItem*, QMenu*, int, int, const QStringList&): No id for action
void DBusMenuExporterPrivate::fillLayoutItem(DBusMenuLayoutItem*, QMenu*, int, int, const QStringList&): No id for action
void DBusMenuExporterPrivate::fillLayoutItem(DBusMenuLayoutItem*, QMenu*, int, int, const QStringList&): No id for action
void DBusMenuExporterPrivate::fillLayoutItem(DBusMenuLayoutItem*, QMenu*, int, int, const QStringList&): No id for action
void DBusMenuExporterPrivate::fillLayoutItem(DBusMenuLayoutItem*, QMenu*, int, int, const QStringList&): No id for action
void DBusMenuExporterPrivate::fillLayoutItem(DBusMenuLayoutItem*, QMenu*, int, int, const QStringList&): No id for action
void DBusMenuExporterPrivate::fillLayoutItem(DBusMenuLayoutItem*, QMenu*, int, int, const QStringList&): No id for action
void DBusMenuExporterPrivate::fillLayoutItem(DBusMenuLayoutItem*, QMenu*, int, int, const QStringList&): No id for action
void DBusMenuExporterPrivate::fillLayoutItem(DBusMenuLayoutItem*, QMenu*, int, int, const QStringList&): No id for action
void DBusMenuExporterPrivate::fillLayoutItem(DBusMenuLayoutItem*, QMenu*, int, int, const QStringList&): No id for action
--

This happened when starting application (once), and when closing Digikam configuration manager (each time).

This has been reported here : https://bugs.kde.org/show_bug.cgi?id=372683 and seems similar to this https://bugs.kde.org/show_bug.cgi?id=368903 


Thanks,

Eric