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I have an ati 5770, card with vga, dvi and hdmi output. I can only get 2 out of the 3 monitors working at once, however i can change the configuation so that all monitors can be selected, but only 2 will work at once.. 2 of my monitors have dvi inputs and one has vga. in my catyalist control center it shows all 3 monitors are there but either 2 can be selected at a time, and so the same with my windows 7. I have and adapter which i use on the 3rd monitor, hdmi-dvi adaptor and it works. also when i boot up my pc i get 2 monitors booting up and when windows starts the 3rd monitor boots but the 1st one closes. I looked at my package box and it actualy does specify ati eyefinity technology is available with this card.

why wont it work???

quack quixote
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2 Answers2

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At the bottom of this ATI support page it states that for more than two monitors, the additions displays need DisplayPort connectors.

MDMarra
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I just bought an ATI 5770 card and was disappointed to discover that the DisplayPort adapter had to be active for EyeFinity to drive a third monitor.

It's a good solution if you can only install a single graphics card, but at ~$100 for an active adapter, I think I'll just use another 5750/5770 card. They can also be used in CrossFire as a bonus.

Jonathan Webb
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