Trying to duplicate image 2 monitors

[hackneyhuso]

Hi I have a Asus GeForce GTX 780Ti DirectCU II 3072MB GDDR5 PCI-Express Graphics Card. It has only one hdmi port and I would like to use two screens with same image. How can I do this?

Thank you

edit: I have seen hdmi splitters but with them you can only use one screen at a time, am I correct?

 

[hackneyhuso]

the two screens are 4 metres away from each other. I had a 5m hdmi cable so had a try using motherboard hdmi output but screen kept blinking. If I use dvi would it stop the screen from blinking?

 

[hackneyhuso]

ive just tried plugging the hdmi cable from graphics card (pc) straight to tv and it still blinks even though without trying to split image. any ideas?