I have been using dual monitors for 8+ years now and just recently bought a 55inch samsung tv (un55f8000) and wanted to connect it to my pc through a hdmi cable. So i bought another hdmi and tried connecting it and i get no signal. I tried the hdmi cable with the tv a ps4 and it works fine. The 3rd monitor does show up on my display settings on my pc but no signal. Forgot to mention my gfx which is a 660 gtx 3gb. Has 1 hdmi port and 2 dvi and one of the dvi port looks slightly different but still fits. My first display is hdmi to hdmi 2nd display is a dvi to hdmi and the 3rd one which i recently got is using a dvi/hdmi adapter. Any suggestions?