[vtkusers] Invalid pixel format, no OpenGL support

[laebert]

Hello,

I am kind of running out of ideas on how to handle this issue. 
Some time ago I upgraded our software to the latest QT and VTK versions (qt
5.5 and VTK 6.3.0 64bit, Visual Studio 2013). 
Since then, i get the message  "Invalid pixel format, no OpenGL support" and
the software just closes. 
Even a simple test application with just a QVTKWidget shows that behavior
once I call GetRenderWindow()->Render(); on it.

I tried to recompile QT with the -opengl desktop flag, i tried it to compile
everything in 32 bit, always the same. 
I also tried to run the software on a different machine (with a Quadro FX
1800) - same error. 
The only thing that works is if I force my laptop to use the integrated
graphics (Intel HD 4600) instead of the NVIDIA Quadro K5100M (with latest
drivers), 
which is not a satisfactory solution. 

A similar issue was posted under
http://public.kitware.com/pipermail/vtkusers/2015-March/090363.html , but
unfortunately with no answers. 

Does anyone have an idea how to solve this?

Thanks for any help
Lars





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