Problem running three displays

JonHarris · Jul 6, 2014

Hi all,

I just installed a R9 270X in my computer and only two displays are working.

The card is listed here.

http://www.bestbuy.com/site/xfx-radeon-r9-270x-2gb-ddr5-pci-express-3-0-graphics-card/2091002.p?id=1219068840893&skuId=2091002&ref=199&loc=yr7LsPS5ySE&siteID=yr7LsPS5ySE-v.zuGH8AUDf5tUTwkG4EVA

http://xfxforce.com/en-us/products/amd-radeon-r9-series/amd-radeon-r9-270x-double-dissipation-edition-r9-270x-cdfr

I have it currently hooked up with DVI-D, VGA to DVI adapter, and a mini displayport to Hdmi cable. I can get any two of the monitors working at the same time.

Does the Minidisplayport need to go straight to a displayport or is the hdmi adapter ok? I had a different card that had a large displayport plugin and had no problems running the three monitors before. The only thing that has changed is the minidisplayport.

Thanks in advance,
Jon

popatim · Jul 6, 2014

mini-display port typically needs an active adapter to work a 3display system.