Hi there, I've just build qt5 from git (5.5 branch, commit cdc3bf5) and I'm having problems running some qt3d examples.
I've run *all* examples and only a few don't work: - assimp, multiviewport: window content is black - gltf: window content is never drawn Don't know if it's related, but the following examples gives me a warning message 'Xlib: extension "NV-GLX" missing on display ":0"' but run fine: - simple-cpp - materials - loader-qml - deferred-renderer-qml - deferred-renderer-cpp - cylinder-cpp - cpp_example - wave - wireframe These one don't run and give me the NV-GLX warning: - gltf - assimp These ones don't run and don't produce the NV-GLX warning: - multiviewport Some examples produce as well messages like 'Xlib: sequence lost (0x1026b > 0x26d) in reply type 0x23!': - shadow-map-qml - deferred-renderer-qml - defered-renderer-cpp All other examples run fine with no Xlib warnings. I'm running KUbuntu 14.10, with all the updates, my GPU config is: GL_VERSION: 4.4.0 NVIDIA 331.113 GL_VENDOR: NVIDIA Corporation GL_RENDERER: Quadro 600/PCIe/SSE2 I'm not sure what the problem is, is it a Qt issue, an NVIDIA driver issue or maybe i'm missing some libs or using the wrong OpenGL lib? Here are some libs debugging info: $ LD_DEBUG=libs ./assimp/assimp 2>&1 | grep -i gl | grep -v libglib 26728: find library=libGL.so.1 [0]; searching 26728: trying file=/home/krys/src/qt5/build/qtbase/lib/libGL.so.1 26728: trying file=/usr/lib/nvidia-331/libGL.so.1 26728: find library=libnvidia-glcore.so.331.113 [0]; searching 26728: trying file=/usr/lib/nvidia-331/libnvidia-glcore.so.331.113 26728: calling init: /usr/lib/nvidia-331/libnvidia-glcore.so.331.113 26728: calling init: /usr/lib/nvidia-331/libGL.so.1 26728: find library=libxcb-glx.so.0 [0]; searching 26728: trying file=/home/krys/src/qt5/build/qtbase/lib/libxcb-glx.so.0 26728: trying file=/usr/lib/x86_64-linux-gnu/libxcb-glx.so.0 26728: calling init: /usr/lib/x86_64-linux-gnu/libxcb-glx.so.0 26728: calling init: /home/krys/src/qt5/build/qtbase/plugins/xcbglintegrations/libqxcb-glx-integration.so Xlib: extension "NV-GLX" missing on display ":0". 26728: calling fini: /home/krys/src/qt5/build/qtbase/plugins/xcbglintegrations/libqxcb-glx-integration.so [0] 26728: calling fini: /usr/lib/x86_64-linux-gnu/libxcb-glx.so.0 [0] 26728: calling fini: /usr/lib/nvidia-331/libGL.so.1 [0] 26728: calling fini: /usr/lib/nvidia-331/libnvidia-glcore.so.331.113 [0] So it looks to me that i'm using the right freshly built Qt library and the right NVidia proprietary drivers. Any help appreciated, Krys _______________________________________________ Development mailing list Development@qt-project.org http://lists.qt-project.org/mailman/listinfo/development