Radeon HD 7870 Eyfinity 6 just enables 2 displays

PhoeniXaC

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Nov 4, 2013
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I have connected 4 displays over hdmi to displayport but I am not able to activate more than two displays. Why? And how I can solve the problem? The card and drivers are installed today.
 
The graphics card is a Club 3D Radeon HD 7870 Eyefinity 6 (that one: http://www.club-3d.com/index.php/produkte/leser.de/product/radeon-hd-7870-eyefinity-6.html) and I use 4 equal ~50" Philips FTV (I don't know the exact type, sorry).

I connected all over HDMI with these adapters: http://www.amazon.de/dp/B00D3N4RNC. I am able to use every display but only two at once.
 
OK, thanks for your quick replies! I will try active adapters and update the thread when it works or not.

But just one question: Is it possible to use the first two displays with passive adapters or do I have to use active ones for all four?
 
OK, finally I got my active adapters and the wall works! So thank you very much for that! But Now I have another problem:

I have four screens at a wall and the two upper displays are in flipped landscape mode. When I create an eyefinity group the displays don't keep their rotation and get set to normal again. Once created the group I cannot flip these displays again. What can I do?