New Post: Choose which GPU is used for OpenCL

So turns out it was a strange driver conflict. I was not using the integrated Intel HD Graphics and both my monitors were running on the main nVidia GPU board.

The OpenCL class would detect the CPU and the main GPU only. Now I plugged one monitor into the integrated graphics port and the problem instantly goes away.

My guess is that the problem is in ASUS's drivers for the integrated GPU, since it is different from Intel's distro. With the problem resolved I did not try IM7 command line. If it pops up again, will do.

Thanks for your help!