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  1. Qt
  2. QTBUG-59636

[REG 4.8->5.6.2] QGLWidget does not honor request for stereo

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    • Icon: Bug Bug
    • Resolution: Done
    • Icon: P1: Critical P1: Critical
    • 5.9.5
    • 5.6.2, 5.9.5
    • GUI: OpenGL
    • None
    • Linux-x86_64 (CentOS Linux release 7.2.1511)
      NVIDIA Quadro M4000/PCIe/SSE2 graphics, 3D Vision monitor/glasses
    • a69a0e8254b79c62fad7372e8c14f66d440ad744

      QGLWidget created with QGLFormat constructed from QGL::FormatOptions with QGL::StereoBuffers (and setStereo(true)) afterward returns format with stereo() == false.
      This is happening on hardware that supports quad-buffered stereo, using code that worked with Qt 4.8.

      GLX confirms that hardware stereo is available, but the created QGLWidget does not support it.

        1. qtbug59636.tar.gz
          2 kB
          François Bertel
        2. reproducer_qt5.cxx
          3 kB
          Erik Tolido
        For Gerrit Dashboard: QTBUG-59636
        # Subject Branch Project Status CR V
        217617,2 glx: Avoid losing the stereo flag in QSurfaceFormat 5.9 qt/qtbase Status: MERGED +2 0

            lagocs Laszlo Agocs
            andy.spencer Andy Spencer
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              Created:
              Updated:
              Resolved:

                There are no open Gerrit changes