I am currently trying to connect my TV to my desktop and split the screen with my monitor. I have two HDMI ports and inputs on the tv and I have tried them both with no results. The monitor is connected to 1 graphics card and my TV Im trying to connect to the second. They are linked together and they are Radeon HD 7800 series graphics cards. I dont believe its the cord as Ive used it before but it has been awhile but its the only 1 I have and im not looking to buy a new one unless absolutely necessary. I just upgraded to windows 10 and the display settings will not detect the TV and the AMD Catalyst Control Center cant detect it either. Any help would be greatly appreciated.