Can not get third monitor to work. (7870, Windows 7)

[jk9988]

So, I recently bought a monitor to extend my display size and I am having some trouble getting the desktop to extend to my third display. The third display works, but only when I turn another one of my monitors off. I have two displays connected to DVI ports and the last connected to an HDMI port all on the back of my Sapphire HD 7870.

All three displays are detected when I go to the control panel screen resolution tab. When I try to extend the desktop to the third display, it says "Unable to save display changes". Not sure if I need extra software or something.


Edit: Forgot to clarify that I am running Windows 7.

 

[swifty_morgan]

don't you need a display port for this to work?

 

[jk9988]

don't you need a display port for this to work?

So, if I use an hdmi to DP adapter (2 DVI monitors and one DP), that should do the trick?

 

[k1114]

You need an active displayport adapter for 3+ monitors. Make sure it's active or it won't work. 2 on dvi and 1 on dp will work.

 

[jk9988]

You need an active displayport adapter for 3+ monitors. Make sure it's active or it won't work. 2 on dvi and 1 on dp will work.

So, would this do the trick? http://www.memoryexpress.com/Products/MX33749

 

[k1114]

Yes. Here's a cheaper one. http://www.newegg.com/Product/Product.aspx?Item=N82E16815129011

 

[swifty_morgan]

crazy price for a cable.

 

[jk9988]

Yes. Here's a cheaper one. http://www.newegg.com/Product/Product.aspx?Item=N82E16815129011

Damn, that cable is discontinued for Canada ): I will keep searching. Thanks for all of your advice!

 

[swifty_morgan]

try ncix.............. if you need one you need one. waiting around for a cheaper price could take a while.