Dell Dock UD22 cannot detect second monitor

[rboerner]

Originally Posted by ki8461

1. Yes, I've tried all 3 ports, HDMI and both displayports. I am plugged into "displayport in" on my samsung monitor, there is also a "displayport out"

2. Yes, still installed version 1.10.2 (building 14)

Important note, do not use the 'DisplayPort Out' port within your display. It won't work in this case.

The manual for your UD22 dock --> https://dl.dell.com/content/manual84...language=en-us indicates that the DisplayPort output closest to the dock's Ethernet port is driven by the DisplayLink chip inside of the dock.

This means that as long as the DisplayLink Manager Application is installed and correctly configured on your Mac this port should work.

Let's simplify the setup for a moment.

Please disconnect the Thunderbolt display from your Mac. Please connect the Samsung display to the UD22 DisplayPort output that is closest to the Ethernet port.

Does the Samsung display work in that simplified configuration?

[ki8461]

Originally Posted by rboerner

Important note, do not use the 'DisplayPort Out' port within your display. It won't work in this case.

The manual for your UD22 dock --> https://dl.dell.com/content/manual84...language=en-us indicates that the DisplayPort output closest to the dock's Ethernet port is driven by the DisplayLink chip inside of the dock.

This means that as long as the DisplayLink Manager Application is installed and correctly configured on your Mac this port should work.

Let's simplify the setup for a moment.

Please disconnect the Thunderbolt display from your Mac. Please connect the Samsung display to the UD22 DisplayPort output that is closest to the Ethernet port.

Does the Samsung display work in that simplified configuration?

Okay, got it all to work.

For anyone reading along:
0. install displaylink software.
1. Make sure to use a displayport to displayport cable. displayport to usbc did NOT work
2. plug display port monitor into displayport (closest to ethernet in on UD22).
3. Plug the UD22 into macbook air
4. plug in thunderbolt monitor (via usbc) to macbook air.

Thanks for your help @rboerner

[rboerner]

Originally Posted by ki8461

Okay, got it all to work.

For anyone reading along:
0. install displaylink software.
1. Make sure to use a displayport to displayport cable. displayport to usbc did NOT work
2. plug display port monitor into displayport (closest to ethernet in on UD22).
3. Plug the UD22 into macbook air
4. plug in thunderbolt monitor (via usbc) to macbook air.

Thanks for your help @rboerner

Glad you got everything working, and you are welcome for the assistance.