Quote:
Originally Posted by Jerin2017
Hello
i am trying to connect my mac book pro using the dell docking station WD19TBS WITH MY three dell monitor but for some reason is only showing as mirror display is coming up but its just mirror there is no option to extended my three monitors can someone help me to fix this issue
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The docking station you are using does not have DisplayLink technology inside of it, which means that DisplayLink will not be able to assist you.
The dock is a Thunderbolt docking station that has a DisplayPort Multi-Stream (DP MST) hub inside of it.
Mac's do not support DP MST, which is way your displays are being mirrored. This is no workaround for this behavior.