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
    2021-04-20T12:33:22+00:00

    Exactly the same issue

    Surface Dock 2 Version with display ports - works perfectly across 4 Surface platforms.

    New Surface Dock 2 Version with USB-C Ports - All sorts of issues with all 4 Surface platforms

    What on earth are they talking about - firmware updates blah blah blah. This is a £200 piece of kit,

    Needs to work seamlessly.

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  2. Anonymous
    2021-04-20T00:51:54+00:00

    Thank you all for your replies,  I have the exact same issue,  I do have a Surface Pro 7+, not sure if it makes a difference, 

    The USB-C to Display Port works fine connected directly in the tablet, but doesn't work connected in the Surface Dock 2.    I read the entire post and tried all the stuff here but nothing worked (with the one cable I have). I have a Dell S2721Ds monitor connected with StartTech USB C to Display Port.  I only have one monitor.   

    I am just adding my voice to this list,  

    Thanks

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  3. Anonymous
    2021-04-15T18:05:07+00:00

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  4. Anonymous
    2021-04-15T08:01:50+00:00

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

    Hardware Active or Passive Adapter Active

    So, looks like being active is not enough.

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  5. Anonymous
    2021-04-15T07:53:33+00:00

    The adapter of Microsoft is active. 

    This is why it works. From time to time it gives an error in signal that disappears only when adapter was disconnected and reconnected. 

    Passive cables run mostly into issues.

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