How to make Garland dell p2715q and p2415q with macbook pro

I bought 2 Dell montors, the P2715Q and the P2415Q, with DP in and drawers for chaining. I use the mini DP to DP of the cables provided with the monitors. They do not only mirrored between them and the Garland. I can, however, connect the two cables DP minis on ports 2 Thunderbolt on my MB Pro 13 "2015 Early and both monitors to display as independent observers in the display preferences, no problem. The only thing is that daisy chaining them does not work. Any suggestions or solutions?

Early 2015 13 "Pro MB, 8 GB RAM, Core i5 2.9

10.11.6 OSX

Monitors: Dell P2715Q and P2415Q

To my knowledge, OS X is the limit. He has never supported other than own Apple Thuderbolt poster chaining.  You can do a quick web search to see if it has changed, but this question has been around for years and I've never known anyone to get 1.2 DP chaining to work with something other than Apple monitors.

Tags: Notebooks

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