Surface dock 2 not connecting to monitors using usb-c cables

Anonymous
2020-07-15T13:06:07+00:00

I purchased two new surface dock2 to connect our surface pro 7 to our widescreen monitors using usb-c cables. Neither of the monitors would connect through the usb-c ports.

One monitor is an LG 38WK95C. The other is a Dell ultrasharp U3818DW. The LG monitor previously worked connecting to a macbook pro through the usb-c port.

To be clear, I first connected the surface dock 2 to one of the surface pro 7 devices and connected the Dell to the surface dock 2 through the usb-c. A messages was displayed to the effect that the monitor should be connected through a displayport. The monitor never showed up in windows, although you would get the sound like a monitor was recognized and the displayport message. Using the "detect monitor" feature came back with "no monitor detected".

I then connected the LG to the other surface pro 7 device through the surface dock 2. The exact same behavior occurred.

Windows update showed no updates available. I then manually updated the firmware on one of the surface pro 7 devices. Still no joy.

Surface | Accessories | Surface Dock

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  1. Anonymous
    2021-04-15T02:31:47+00:00

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  2. Anonymous
    2021-04-15T01:52:52+00:00

    Can people please post which cables they use?

    I tried with the surface dock 2 connection up or down (cable facing back or front) to a Surface Book 3 Business, and I still have no image on the monitors using USB-C to full-size DisplayPort cables going to two Dell 4K monitors, despite the monitors being listed as connected in Windows 10.

    I tried switching the refresh rate to 30 and back, which also does not work.

    This is the cable I use:

    https://www.startech.com/en-au/audio-video-products/cdp2dp142mbd

    which claims

    USB C to DisplayPort 1.4 Cable 8K 60Hz/4K - Bidirectional DP to USB-C or USB-C to DP Reversible Video Adapter Cable -HBR3/HDR/DSC - USB Type C/TB3 Monitor Cable

    Thanks.

    GT

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  3. Anonymous
    2021-04-14T15:46:42+00:00

    It didn’t work for me :(

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  4. Anonymous
    2021-04-14T06:13:41+00:00

    Wow - thanks Aaron! That solved the issue for me. Cant believe Microsoft does not ask us to check this as the very first alternative.

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  5. Anonymous
    2021-04-01T15:31:41+00:00

    Just as an update since my last post I added another setup.  In this case I have the Surface Book 3 and another surface dock 2 hooked up to a Dell U4320Q.  I am using USB-C to link to the monitor.  In this arrangement I can have the dock cable facing in either direction and it works.

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