Hello everyone,
I have a very similar setup and the same issue:
Surface Book 3 Business (SB3) with Surface Dock 2 (SD2) connected to two Dell 4K monitors.
The following cable works fine if connected to the USB-C port on the SB3 directly, but not to the USB-C video connections at the back of the SD2
6ft USB C to DisplayPort 1.4 Cable 8K/4K - USB-C™ Video Adapters | Australia (startech.com)
I saw that people were talking about USB-C to HDMI cables that need to be active (not passive). This cable is listed as "active" on that page under its specs.
For any MS personnel here in these forums:
This is very disappointing!
Will there be a firmware update for the SD2 that will allow the use of such cables with this dock (assuming that's possible)?
Regards,
GT