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Catalyst wont use 3rd monitor, any help?

post #1 of 2
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Hi guys. today I decided to try a triple monitor setup, but it will not use my third monitor unless one of the other monitors are disconnected. the
Monitors:
2x Dell sT2421L 24 inch monitors
1x acer G215HVV 21 inch monitor.

Graphics cards
2x ATI 7770 GHz edition CrossFire

Configuration for 3 monitors:
The 7770 GHz has 2x DVI ports, 1x HDMI, and 1x DisplayPort. I have one 24' monitor running on the native HDMI, I have the second 24' monitor running on a DVI to HDMI converter, and the third monitor (21') running on the second DisplayPort.


Does anyone have any suggestions on why the third monitor will not work?
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Le Server
(17 items)
 
The Upgrade
(14 items)
 
 
CPUMotherboardGraphicsRAM
3930k Big Bang 7770 GHz edition Corsair Vengeance 16gb 
Hard DriveHard DriveHard DriveCooling
Samsung 256GB SSD Seagate Barracuda 2tb Seagate Barracuda 2tb h100i 
OSMonitorKeyboardPower
Windows 7 Pro Dell 24 inch Razer BlackWidow Ultimate 2013 corsair 760w modular 
CaseMouseMouse PadAudio
cosmos 2 Razer Taipan Minecon 2011 Minecraft Pad Corsair Vengeance 1500  
Other
Razer Nostromo 
CPUMotherboardGraphicsRAM
i7 980 3.35GHz X58 GTX 550Ti 2 x ( 2 x 8GB) Corsair Vengance blue 
Hard DriveHard DriveOSMonitor
Seagate Barracuda 1TB Seagate Barracuda 2TB Windows 7 Home edition 64bit 2 x 21.5" Acer 
KeyboardPowerCaseMouse
Logitech G110 Corsair 650 Modular NZXT. Zero 2 Razer DeathAdder 
Mouse PadAudio
Razer Limited edition Minecon Minecraft Grass b... GAMECON 780 
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post #2 of 2
Quote:
Originally Posted by GamerPips View Post

Configuration for 3 monitors:
The 7770 GHz has 2x DVI ports, 1x HDMI, and 1x DisplayPort. I have one 24' monitor running on the native HDMI, I have the second 24' monitor running on a DVI to HDMI converter, and the third monitor (21') running on the second DisplayPort.


Since your card has dual dvi, one of the dvi (SL) is shared with the hdmi port.

What you wrote above doesn't jive with what I see in the pic, anyhow the setup in the pic with both dvi will not work since one is tied to the hdmi. Have you tried setting it up with one dvi + hdmi + dp or 2 x dvi + dp?

Btw, if you are setting up eyefinity you must use one dp and if using an adapter, the adapter must be an active one.
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