I am recently trying to find a dock which works with a DELL Precision 7540 and MacBook Pro 16" as well, at the same time. The last firmware update for the dock contains the following changes: I must admit its completely annoying and disappointing having to find working solutions for hardware being as expensive as these.
While i was writing this answer i tried to connect to the dock using only 1 usb connector with monitor connected via display port and it started to work - so at least it looks like i can confirm the behaviour you are facing. I would expect to be able to use my MacBook with a single connector since the power supply and protocols should be compatible and only be required to use the second connector with the energy hungry monster Precision 7540. Honestly i am kind of lost in the jungle of display protocol standards and can't find the reason for this strange behaviour. Trying to use DisplayPort leads to the same "laggy" behaviour without the display working. While the dock itself starts working in this case, i can only connect external displays using HDMI. My external screen only starts working when i plug in both cables shortly after each other. So here is my question:Īre you able to use the WD19DC with your macbook with a single Thunderbolt connector at all? I am facing the problems you describe in 100% of all cases when i try to connect only one of the two USB-C connectors. I am more or less forced to run with WD19DC/DCS, since the Dell Notebook requires more than 200W power supply to connect the dock properly (and thus the annoying dual connector).
Click to expand.I am recently trying to find a dock which works with a DELL Precision 7540 and MacBook Pro 16" as well, at the same time.
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