2nd Monitor on UD-3900 not working

rboerner · 10-25-2016, 06:15 PM

The cables you are using to connect to your DisplayPort displays are most likely passive cables that are only meant to work in one direction to convert from a DisplayPort output to a HDMI input. They will not work in the other direction as you appear to be doing.

Depending on the available inputs on your displays there may be other alternatives. More information about cable options for the UD-3900 is here -> http://plugable.com/2015/07/06/video-cables-untangled/

10-25-2016, 06:15 PM	#2
rboerner Super Moderator Join Date: Jan 2015 Posts: 626	The cables you are using to connect to your DisplayPort displays are most likely passive cables that are only meant to work in one direction to convert from a DisplayPort output to a HDMI input. They will not work in the other direction as you appear to be doing. Depending on the available inputs on your displays there may be other alternatives. More information about cable options for the UD-3900 is here -> http://plugable.com/2015/07/06/video-cables-untangled/