How do I setup Eyefinity to support three monitors on a Radeon HD 5770 card? Currently I can setup only two at once in any combination.
Monitors are connected as DVI-DVI-HDMI.
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On AMD Eyefinity Technology, there is this remark at the bottom:
Driver version 8.66 (Catalyst 9.10) or above is required to support ATI Eyefinity technology and to enable a third display you require one panel with a DisplayPort connector.
Do you have one screen connected with DisplayPort?
Peter Mortensen
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Snark
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This cannot be solved with a passive adapter. Issue is in hardware and comes down to signaling on DVI, HDMI and DisplayPort.
If I recall correctly DVI and HDMI require an own clock signal per output. Because DisplayPort is a package protocol it requires only one clock signal per card. ATI Radeon HD 5000-series has two clocks for DVI/HDMI so it is possible only to use 2 of those devices, adapters do not change this fact.
There is however an active adater, that allows you to transform DisplayPort signal to DVI-signal. More information about the device here
So what you need is a native DisplayPort monitor or an active device that transforms DisplayPort signal to DVI/HDMI.
Ahe
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