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  1. Qt
  2. QTBUG-54946

Running OpenGL app with Qt 5.7 on Ubuntu 16.04: "Could not initialize GLX"

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Details

    • Bug
    • Resolution: Duplicate
    • Not Evaluated
    • None
    • 5.7.0
    • GUI: OpenGL, Widgets: Widgets and Dialogs
    • None
    • Ubuntu 16.04. Graphics card is a nVidia GeForce 520M, bridged via Optimus with an Intel HD Graphics 5000 (though it's not active right now).

    Description

      This application is built with Qt 5.7, on Ubuntu 16.04. I've attached a UPX-compressed binary (needs QScintilla to run).

      When running this application, I get this error just before I use a QOpenGLWidget:

      `Could not initialize GLX`

      That's it. This problem does NOT occur when the application is built with Qt 5.5 or 5.6. With those versions, the program runs as expected.

      The application doesn't crash immediately after starting, because I do some printout that's unrelated to graphics before the window is visible.

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            sletta Gunnar Sletta
            JesseTG Jesse Talavera-Greenberg
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            Dates

              Created:
              Updated:
              Resolved:

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