So I just upgraded to a 40" 4K TV and a GTX 1070. When the computer sits idle the "monitor" is supposed to shut off after a certain amount of time. The problem I am having is my computer seems to send a blank black signal instead of no signal. This is happening on a brand new install of windows 10. When I just dropped the graphics card in my computer without reinstalling (had AMD onboard graphics before), it did not send a signal. When no signal is sent my TV senses it and eventually shuts it self off. This is what I need because its a TV and does not have a low power mode like most monitors. Any suggestions?