I have Geforce 770 GTX. I'm trying to connect 3 dells U2515h using daisy chain. I'm connecting 1 monitor using mini dp to graphic card (DP port). than 2 monitor also with mini dp to DP in first monitor. 3 monitor mini dp to DP in second one. The problem I'm having is that 3rd monitor has always lower resolution (2048x1152) instead of 2560x1440 liek monitor 1 and 2 has. When I connect 3rd monitor using separate cable hdmi to hdmi graphic card port all 3 than have full resolution. I'm not sure if it's my graphic card fault or it's some bug with mini dp daisy chaining?