It is possible to use a apu and a discrete nvidia together

[epixoip]

Well first of all you never needed to have (nor should you have had) AMD APP SDK or CUDA installed. Neither are necessary or desired for Hashcat. You certainly never needed to use LD_LIBRARY_PATH.

Second, cudaHashcat doesn't exist anymore in beta, OpenCL is used for all platforms and devices.

So I guess the first thing to do would be to get rid of everything you have shown above, especially APP SDK & CUDA, install latest fglrx & Nvidia driver, download latest oclHashcat beta, and then just run it.