Details
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Bug
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Resolution: Incomplete
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P2: Important
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None
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5.12.0
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None
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Ubuntu 18.04 x86_x64 X11 Qt5.12.0 Firefox
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Linux/X11
Description
I've built KDE qml components to use in Qt.
Components are working correctly, by running with xcb platform.
But when running with webgl platform, it's gonna be like below.
The Button text won't appear!!!
And when I click the combobox, the server crashes!
./untitledwebgl -platform webgl:port=1234 QML debugging is enabled. Only use this in a safe environment. QObject: Cannot create children for a parent that is in a different thread. (Parent is QGuiApplication(0x7fffb5093eb0), parent's thread is QThread(0x5622f8db6240), current thread is QThread(0x5622f8dd9360) QObject: Cannot create children for a parent that is in a different thread. (Parent is QGuiApplication(0x7fffb5093eb0), parent's thread is QThread(0x5622f8db6240), current thread is QThread(0x5622f8dd9360) QObject: Cannot create children for a parent that is in a different thread. (Parent is QGuiApplication(0x7fffb5093eb0), parent's thread is QThread(0x5622f8db6240), current thread is QThread(0x5622f8dd9360) QObject::installEventFilter(): Cannot filter events for objects in a different thread. QObject: Cannot create children for a parent that is in a different thread. (Parent is QGuiApplication(0x7fffb5093eb0), parent's thread is QThread(0x5622f8db6240), current thread is QThread(0x5622f8dd9360) org.kde.kwindowsystem: Could not find any platform plugin QObject: Cannot create children for a parent that is in a different thread. (Parent is QGuiApplication(0x7fffb5093eb0), parent's thread is QThread(0x5622f8db6240), current thread is QThread(0x5622f8dd9360) QObject::installEventFilter(): Cannot filter events for objects in a different thread. kf5.kcoreaddons.kdirwatch: Cannot watch QRC-like path ":/icons/hicolor/index.theme" qt.qpa.webgl: Message received before connect {"type":"keydown","key":"Control","which":17,"location":2,"repeat":false,"ctrlKey":false,"shiftKey":false,"altKey":false,"metaKey":false,"string":"\u0011","keyCode":17,"charCode":0,"code":"ControlRight","time":1549614811239} qt.qpa.webgl.context: Failed to create buffers qt.qpa.webgl.context: Failed to create buffers qt.qpa.webgl.context: Failed to create buffers qt.qpa.webgl.context: Failed to create buffers qt.qpa.webgl.context: Failed to create buffers qt.qpa.webgl.context: Failed to create buffers qt.qpa.webgl.context: Failed to create buffers qt.qpa.webgl.context: Failed to create buffers qt.qpa.webgl.context: Failed to create buffers qt.qpa.webgl.context: Failed to create buffers This plugin does not support grabbing the mouse This plugin does not support grabbing the keyboard Segmentation fault (core dumped)
QObject & QThread problems are related to KDE components, but it's OK with xcb platform.
When I used Qt's components, texts were shown without problem, but if choose 'QtRendering' for "Render type"!
