Reply To: cycles render engine (opencl)

Also the rendered mode uses EEVEE in the first instance, if you want to see your viewport with cycles in the drop down menu check the options for scene lights and scene world. See if this helps. If it does you will need to switch to EEVEE change the settings and then switch back to CYCLES. Even though you have CYCLES selected the viewport will use EEVEE without the scene world and lights checked.