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AMD R9 270x triple monitors problem


g3x0
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Please, if I've posted in the wrong section of the forum, move this thread, don't delete it. Thanks.

 

I am trying to get my three monitors to work on a OS X 10.10 installation.

 

I know the common problem was the fact that AMD needs an active DVI adaptor to enable more than 2 monitors at a time and I bought one. I know it works because I've tested it on Windows and it does the trick, all of them work nicely, but not on Mac.

 

I tried:

 

(PC - Monitor)

 

DVI - DVI

DVI - DVI

Display Port - active adapter to HDMI - HDMI

 

and also:

 

DVI - DVI

HDMI - HDMI

Display Port - active adapter to HDMI - HDMI

 

Both work on Windows, neither on Mac.

 

The third monitor gets discovered and I can arrange it, I can also move my mouse on it, but no image is generated, only a black screen. The monitor is fully functional; tested.

 

Can somebody, please, help me?

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