I am running Ubuntu 14.04 and have a Nvidia Geforce GTX 970.
I have successfully installed both the graphics card driver and the CUDA toolkit and have been using it with
Ethminer to mine
When I am actually using the graphics card as my display hardware as well, i.e. my monitor is plugged into my graphics card, this works without a problem.
I would however prefer to use my graphics card for GPU processing only and thus plug my monitor into my motherboard graphics card.
When I do this, however, it seems like I am unable to use my Geforce card.
Without having changed any drivers/setting and trying to run
Ethminer I get the error:
terminate called after throwing an instance of 'std::runtime_error' what(): No CUDA driver found Aborted (core dumped)
I am sure it must be possible to use a GPU without it being plugged in? Any advice?