A classic problem 3 monitors on 270x

[Johnabie]

I have two ELEFT407 40" 1080p screens and one NS-39L700a12. Windows gives me "unable to save display settings" when I try to enable any third monitor. I'm only able to display thru any 2 at a time.


I have tried to connect the screen in multiple fashions IE

Displayport thru active adapter to hdmi x dvi to hdmi x hdmi
Displayport thru active adapter to hdmi x dvi to hdmi x dvi to hdmi
Displayport thru active adapter to hdmi x dvi to vga x dvi to hdmi
Displayport thru active adapter to hdmi x dvi to vga x hdmi
Displayport to hdmi x dvi to hdmi x hdmi
Displayport to hdmi x dvi to hdmi x dvi to hdmi
Displayport to hdmi x dvi to vga x dvi to hdmi
Displayport to hdmi x dvi to vga x hdmi
dvi to hdmi x dvi to hdmi x hdmi

I have also tried the setup with 3 dell 19" 4:3 with no luck.
I have also tried every setup first screen than duplicated then extend.
I have also tried using 800x600 as that sometimes helps.
I have also lowered from 32bit colour to 16bit.
I have also downloaded software to force triple monitor like "actual multiple monitor" and others.

Display port adapter used
http://www.club-3d.com/index.php/products/reader.en/product/displayport-to-active-hdmi-3d-cable.html

Setup
270x sapphire vapor-x and or 7870 ghz shapphire (tried both)
3570k
z68 ud5h b3 (uefi flash)
12 gb ddr3
750w corsair tx750
Windows 7 Ultimate
etc

eleftft407 input is vga or hdmi
ns-39l700a12 input is vga or hdmi

Cables available to try
club 3d display to hdmi active
displayport to hdmi
multiple hdmi
2 dvi to hdmi
2 dvi to vga
2x vga cables

I'm going to post this on linustechtips, if I find a solution I will post here aswell.

Thanks in advance

 

[i7Baby]

What ports are available on each monitor?

What Ports are available on the 270x?

What ports of the card have you got hooked up to what ports on the monitors?

Do you know the difference between DVI-I and DVI-D?

 

[Johnabie]

What ports are available on each monitor?

Monitors have hdmi and vga input.

What Ports are available on the 270x?

270x has one display port one hdmi and two dvi in dvi-I and one dvi-d.
7870 has two mini display port one hdmi and one dvi

What ports of the card have you got hooked up to what ports on the monitors?

Tried every possible configuration.

Do you know the difference between DVI-I and DVI-D?

I have the dvi to vga hooked up on dvi white, the port with both digital and analog signal.

 

[i7Baby]

Clear as mud!

 

[Johnabie]

Any help would be appreciated, I'd like to have some hair when i'm one with this.

 

[i7Baby]

Monitor 1 (what is it?) what port are you using? What port is connected to on the 270?

Monitor 2 - ditto

Monitor 3 - ditto

 

[Johnabie]

Monitor 1 (what is it?) what port are you using? What port is connected to on the 270?

displayport to hdmi active adpter

Monitor 2 - ditto

dvi to hmdi

Monitor 3 - ditto

dvi to hdmi

 

[i7Baby]

all 3 monitors are 1080p?

"270x has one display port one hdmi and two dvi in dvi-I and one dvi-d."

So monitor 2 and 3 from dvi-i or dvi-d?

 

[Johnabie]

all 3 monitors are 1080p?

"270x has one display port one hdmi and two dvi in dvi-I and one dvi-d."

So monitor 2 and 3 from dvi-i or dvi-d?

One of each, I also tried thru display and hdmi and dvi.

This is my card
http://www.sapphiretech.com/presentation/product/?cid=1&gid=3&sgid=1227&lid=1&pid=2036&leg=0#

2 thru dvi-i and 3 thru dvi-d

 

[i7Baby]

So does the monitor with dvi-d to it have a dvi-d input?

 

[Johnabie]

So does the monitor with dvi-d to it have a dvi-d input?

No it does not, i'm using a dvi to hdmi cable.

But it works just fine, i can activate any 2 of the three at anytime, just not 3 at a time.
I also tried
Setup
screen1 Dvi-i to hdmi
Screen 2 hdmi to hdmi
Screen 3 display port to hdmi

 

[Johnabie]

I tried everything, I'm just going to buy a r9 290 that should solve the problem.