[3dprinter-general] Bug#956811: Bug#956811: cura: UI not usable because of OpenGL renderer

[Christoph Berg]

Re: Gregor Riepl
> > I do not have much experience debugging OpenGL stuff either, but
> > from the description I would say that this could be a bug in Cura, or
> > it could be a bug in the OpenGL implementation for AMD VEGAM, whatever
> > that is.  Perhaps it is an idea to identify the package being used
> > by X.org for this card, and pass the bug report over to them for
> > comments is a way forward?
> 
> It happens with Intel graphics as well, so I don't think it's a driver
> issue.

What issue are talking about here? Cura starts fine for me (X11):

2020-11-01 22:23:28,829 - DEBUG - [MainThread] UM.Qt.QtRenderer._initialize [210]: Support for Vertex Array Objects: True
2020-11-01 22:23:28,834 - DEBUG - [MainThread] UM.View.GL.OpenGL.__init__ [112]: Initialized OpenGL subsystems.
2020-11-01 22:23:28,834 - DEBUG - [MainThread] UM.View.GL.OpenGL.__init__ [113]: OpenGL Version:  4.6 (Core Profile) Mesa 20.1.9
2020-11-01 22:23:28,835 - DEBUG - [MainThread] UM.View.GL.OpenGL.__init__ [114]: OpenGL Vendor:   Intel
2020-11-01 22:23:28,835 - DEBUG - [MainThread] UM.View.GL.OpenGL.__init__ [115]: OpenGL Renderer: Mesa Intel(R) Iris(R) Pro Graphics 580 (SKL GT4)
2020-11-01 22:23:28,835 - DEBUG - [MainThread] UM.View.GL.OpenGL.__init__ [116]: GLSL Version:    4.60.0
2020-11-01 22:23:28,835 - DEBUG - [MainThread] UM.View.GL.ShaderProgram.load [58]: Loading shader file [/usr/share/uranium/resources/shaders/default.shader]...
2020-11-01 22:23:28,841 - DEBUG - [MainThread] UM.View.GL.ShaderProgram.load [58]: Loading shader file [/usr/share/uranium/resources/shaders/selection.shader]...
2020-11-01 22:23:28,842 - DEBUG - [MainThread] UM.View.GL.ShaderProgram.load [58]: Loading shader file [/usr/share/uranium/resources/shaders/select_face.shader]...
2020-11-01 22:23:28,842 - DEBUG - [MainThread] UM.View.GL.ShaderProgram.load [58]: Loading shader file [/usr/share/uranium/resources/shaders/default.shader]...
2020-11-01 22:23:28,843 - DEBUG - [MainThread] UM.View.GL.ShaderProgram.load [58]: Loading shader file [/usr/share/uranium/resources/shaders/composite.shader]...
/usr/lib/python3/dist-packages/UM/Qt/QtRenderer.py:225: DeprecationWarning: tostring() is deprecated. Use tobytes() instead.
  data = numpy.array([
/usr/lib/python3/dist-packages/UM/Qt/QtRenderer.py:132: DeprecationWarning: an integer is required (got type float).  Implicit conversion to integers using __int__ is deprecated, and may be removed in a future version of Python.
  self._gl.glViewport(0, 0, self._viewport_width, self._viewport_height)
2020-11-01 22:23:28,846 - DEBUG - [MainThread] UM.View.GL.ShaderProgram.load [58]: Loading shader file [/usr/share/cura/resources/shaders/overhang.shader]...
2020-11-01 22:23:28,847 - DEBUG - [MainThread] UM.View.GL.ShaderProgram.load [58]: Loading shader file [/usr/share/cura/resources/shaders/striped.shader]...
2020-11-01 22:23:28,848 - DEBUG - [MainThread] UM.View.GL.ShaderProgram.load [58]: Loading shader file [/usr/share/cura/resources/shaders/transparent_object.shader]...
2020-11-01 22:23:28,850 - DEBUG - [MainThread] UM.View.GL.ShaderProgram.load [58]: Loading shader file [/usr/share/cura/resources/shaders/striped.shader]...
2020-11-01 22:23:28,851 - DEBUG - [MainThread] UM.View.GL.ShaderProgram.load [58]: Loading shader file [/usr/share/cura/resources/shaders/xray.shader]...
2020-11-01 22:23:28,852 - DEBUG - [MainThread] UM.View.GL.ShaderProgram.load [58]: Loading shader file [/usr/share/cura/resources/shaders/xray_composite.shader]...
2020-11-01 22:23:28,853 - DEBUG - [MainThread] UM.View.GL.ShaderProgram.load [58]: Loading shader file [/usr/share/uranium/resources/shaders/default.shader]...
2020-11-01 22:23:28,854 - DEBUG - [MainThread] UM.View.GL.ShaderProgram.load [58]: Loading shader file [/usr/share/cura/resources/shaders/grid.shader]...
2020-11-01 22:23:28,855 - DEBUG - [MainThread] UM.View.GL.ShaderProgram.load [58]: Loading shader file [/usr/share/uranium/resources/shaders/platform.shader]...
/usr/lib/python3/dist-packages/UM/View/GL/FrameBufferObject.py:18: DeprecationWarning: an integer is required (got type float).  Implicit conversion to integers using __int__ is deprecated, and may be removed in a future version of Python.
  self._fbo = QOpenGLFramebufferObject(width, height, buffer_format)
/usr/lib/python3/dist-packages/UM/View/GL/ShaderProgram.py:336: DeprecationWarning: an integer is required (got type float).  Implicit conversion to integers using __int__ is deprecated, and may be removed in a future version of Python.
  QColor(value.r * 255, value.g * 255, value.b * 255, value.a * 255))
/usr/lib/python3/dist-packages/UM/Mesh/MeshData.py:238: DeprecationWarning: tostring() is deprecated. Use tobytes() instead.
  return self._vertices.tostring()
2020-11-01 22:23:28,869 - DEBUG - [MainThread] UM.View.GL.ShaderProgram.load [58]: Loading shader file [/usr/share/cura/resources/shaders/xray.shader]...
2020-11-01 22:23:29,034 - DEBUG - [Thread-7] cura.Machines.ContainerTree.run [185]: All MachineNode loading completed


Christoph