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Bug
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Resolution: Unresolved
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P2: Important
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5.15.7, 6.4.2
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None
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Linux/Wayland,
QML runtime "qmlscene" has been deprecated. Nevertheless, it should not crash, as long as it is still around. To reproduce run the attached QML code. These are the results:
X11, Qt6:
qt.tools.qmlscene.deprecated: Warning: qmlscene is deprecated and will be removed in a future version of Qt. Please use qml instead.
QEGLPlatformContext: eglMakeCurrent failed: 3009
QRhiGles2: Failed to make context current. Expect bad things to happen.
Failed to create RHI (backend 2)
Failed to create QRhi on the render thread; scenegraph is not functional
Failed to initialize graphics backend for OpenGL.
Aborted (core dumped)
X11, Qt5:
QEGLPlatformContext: eglMakeCurrent failed: 3009 - many times and window is completely transparent (inner green rectangle is not shown)
Wayland, Weston: transparent part is black
Wayland Qt compositor: transparent part is black, only if QT_WAYLAND_DISABLE_WINDOWDECORATION=1
Here's the setup:
qt.scenegraph.general: Using QRhi with backend OpenGL Graphics API debug/validation layers: 0 QRhi profiling and debug markers: 0 Shader/pipeline cache collection: 0 qt.scenegraph.general: threaded render loop qt.scenegraph.general: Using sg animation driver qt.scenegraph.general: Animation Driver: using vsync: 16.67 ms qt.scenegraph.general: Using sg animation driver qt.scenegraph.general: Animation Driver: using vsync: 16.67 ms qt.rhi.general: Created OpenGL context QSurfaceFormat(version 3.2, options QFlags<QSurfaceFormat::FormatOption>(), depthBufferSize 24, redBufferSize 8, greenBufferSize 8, blueBufferSize 8, alphaBufferSize 8, stencilBufferSize 8, samples 0, swapBehavior QSurfaceFormat::DefaultSwapBehavior, swapInterval 1, colorSpace QColorSpace(), profile QSurfaceFormat::NoProfile) qt.rhi.general: OpenGL VENDOR: AMD RENDERER: Radeon RX550/550 Series (POLARIS12, DRM 3.42.0, 5.15.0-60-generic, LLVM 12.0.0) VERSION: OpenGL ES 3.2 Mesa 21.2.6 qt.scenegraph.general: MSAA sample count for the swapchain is 1. Alpha channel requested = no. qt.scenegraph.general: rhi texture atlas dimensions: 512x512
This is a follow up of QTBUG-79157