Eyefinity problem

Hi

Here are the basic requirements:

Connecting multiple monitors for AMD Eyefinity technology couldn’t be simpler. There are four easy rules to remember:

1) The first two monitors can connect to the graphics card with any display output on your product: HDMI, VGA, DVI or DisplayPort.
2) The third (or greater) display must be connected to the graphics card via DisplayPort.
3) If your monitor does not have a DisplayPort connection, you will need an inexpensive active DisplayPort adapter for it. DVI to DP adapters can be had for less than $30 USD.2
4) Every family of GPUs supports a different maximum number of displays.

So you will need an active adapter if your Acer monitor doesn't have a display port.

Right. The problem is you aren't using a Display port. You must use DP when using Eyefinity.

Hi, thanks for the answer, however i'm still unsure what to get exactly. My acer monitor is hooked up with a dvi (male) to displayport (male) cable. This is the cable going from my acer 23 to my 6870. http://www.amazon.com/gp/product/B003OBXHPC/ref=oh_deta...

I assume what you are trying to say is that i will need an active display port adapter and NOT the cable i have.


Also, i am still curious if having (two) 1080p screens and (one) 720p screen. Will i need to change the resolution of my 1080p screens down to 720 in order for it to work?

will this adapter do the trick? (also, what does this do that my dvi(m) to m-DP(m) does not?

http://www.amazon.com/StarTech-com-MDP2DVI-DisplayPort-...

DVI/HDMI have a limited amount of lanes to the GPU and DP/mDP does not. You usually can't run more than two displays with HDMI/DVI-D from a single GPU card, but DP has no such problem. DP uses different digital signaling, but HDMI/DVI-D have the same signaling and are really the same thing for their digital output, although with pins in a different arrangement, HDMI has audio, and DVI-D can have two links instead of one.

@Blazorthon - thanks for the info. I knew a bit what you spoke about and it definitely helps, but i am still unclear about this. Will the above linked adapter work? and will i have to change the resolution of my 1080p screens if my 3rd screen is only capable of 720. Maybe i am misunderstanding you...?

thank you very much!

If the third screen is only 720p, then they would probably all need to run at 720p. I think that that adapter should work. Also, I'm pretty sure that 720p is 1280x720. I don't know for sure that your TV is 720p or 1366x720, but 1366x720 is not 720p, at least not the 720p that TVs refer to as HD.

the LG tv is 1360x768

Okay, but that's definitely not 720p.

yes it's not 720p but it's also not 1080p. The stickied efinity thread says that all displays need to have the same resolution in order for efinity to work. Am i wrong to assume i'd have to lower the resolution of my (2) 1080p screens to 1360x768 in order for efinity to work?

thanks! you're so helpful blazorthon.

Yes, you'll have to lower the resolution of those other two displays.

You're welcome.