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In general the bugfixes are backported to your Qt release running on 12.04. So if you are running an up to date version, all fixes should be in -- even version number might not have changed. You can see details inside ChangeLog from package information site. This might be confusing, but caused by packagaging and it's dependencies.


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The actual problem was that suspending my PC had disabled 3D acceleration and Qt Creator didn't start...great. As for the Pipelight stuff, I have no idea.


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I ran into the same problem on 15.04 with Qt 5.4, and Intel integrated graphics. I found this workaround to get it running, from the command line: KDE_FULL_SESSION= XDG_CURRENT_DESKTOP= qtcreator In my case, I installed from the download tool from the Qt website, so I had to modify the command to point to my Qt Creator binary. Mine installed to ...


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Try import Qt.WebSockets 1.0. This is the module name given in the qmldir file. The QML Documentation says that the QtWebSockets name was introduced in Qt 5.5; prior to that, the namespace was Qt.WebSockets. Apparently, the old namespace is still active in 5.5, so I'd use it for the time being.


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It sounds like you should be using Drag and Drop in addition to just MouseArea, as shown in https://developer.ubuntu.com/api/apps/qml/current/QtQuick.Drag/


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Regarding to for Qt doc: The Qt installers for Linux assume that a C++ compiler, debugger, make, and other development tools are provided by the host operating system. In addition, building graphical Qt applications requires OpenGL libraries and headers installed. Most Linux distributions do not install all of these by default, but setting up a development ...



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