I have a Dell XPS 15 9560 with an integrated Intel HD630 and a Nvidia GTX 1050. I plug an LG27UK650 into the HDMI port using a high speed HDMI cable and cannot find a way to get 4k at 60hz. I have made sure to download the latest drivers for both Nvidia and Intel and even Dell. I tried adding a resolution within the intel graphics program but i am told it exceeds the bandwidth. Any suggestions?