From http://developer.amd.com/download/AMD_APP_SDK_Release_Notes_Developer.pdf
Section 5.3
"
For OpenGL interoperability with OpenCL, there currently is a requirement on when the
OpenCL context is created and when texture/buffer shared allocations can be made. To use
shared resources, the OpenGL application must create an OpenGL context and then an
OpenCL context. All resources (GL buffers and textures) created after creation of the OpenCL
context can be shared between OpenGL and OpenCL. If resources are allocated before the
OpenCL context creation, they cannot be shared between OpenGL and OpenCL."
ie.for your minimalistic program, you need to move the code related to making your vbo (QOpenGLBuffer m_vbo; etc) until after you have made your cl context
i.e. after your for(auto& plat : my_cl_platforms) code block
The SimpleGL sample in the amd sdk creates the CL command queue before the vbo, so maybe that is required as well.
Will this help... It didn't for me. I also don't have access to an AMD graphics card.
May try GLIntercept with the ARB_debug_output, it might log something that tells you what is going on.
Also a pnf_notify on your CL context.
Note to AMD The info in Section 5.3 should also be in the AMD_Accelerated_Parallel_Processing_OpenCL_Programming_Guide under appendix G
I would have found this information a lot faster,
