Solved: P2419H And U2419H Monitors Daisy Chain Connection - Dell Community
U2414H, Daisy Chain not possible via video card HDMI - Dell Community
Discussion] Builders Beware: Overwhelming evidence that all revisions of Dell's U2414H monitors are defective from the factory. Does not work with DP 1.2 reliably in any configuration. Dell's response: tough luck, works