Troubleshooting multiple monitors on a Surface Dock 2 (Surface Pro 7)

Anonymous
2020-08-24T04:46:23+00:00

I'm trying to connect a new Pro 7 to two external monitors (Acer) through the Surface Dock. I'm using two USB C to HDMI cables. 

The Surface can detect the monitors and assigns them numbers (2 and 3) but the screens remain black and no numbers (or other display) shows up.

If I disconnect one of the monitors, the other one immediately turns on. It's quite bizarre.

I have updated the driver, downloaded firmware updates, disconnected/reconnected everything, and generally done everything that it says on the support page. 

I would be grateful if someone could let me know what I need to do to fix this.

Surface | Accessories | Surface Dock

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  1. Anonymous
    2021-04-28T05:10:34+00:00

    Sorry to hear that it has not yet been fixed. I was pulling my hair our earlier this year and went through four Dock 2s. Before the latest Surface Pro 7 update was released that fixed my issues. It was definitely my SP7 and not the docks as each of the docks works fine with the SP7 now.

    We have about 40 Dock2s and 300+ Dock 1s.

    I now insist on genuine MS USBC-HDMI active adapters for Dock2. Just to be sure.

    I reimaged a teacher's SP7 yesterday with a 2020 version of our image (not the latest one) and saw he was getting the fuzzy/blurry screen on his monitor in the classroom. I updated the SP7 firmware update and all was good.

    Definitely push this with MS for a solution. Good luck and thanks for starting the thread - you can see you are not alone.

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  2. Anonymous
    2021-04-14T13:38:10+00:00

    I was surprised to find the solution within Windows:

    > Settings
    > Display

    > Multiple displays

    I had never noticed this configuration before, even though using 2 extended displays for months now. Neither did I change this config before the displays stopped working. Now both displays are back working OK.

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  3. Anonymous
    2021-04-14T01:50:51+00:00

    Yes!  I purchased four (two for each dock), with no improvement.  These are expensive, and together with the 2 expensive Dock 2's, it is adding up to alot of costly hardware that doesn't work.

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  4. Anonymous
    2021-04-14T00:29:01+00:00

    Have you tried using Microsoft Display Adapters? This was the only solution I found for some Surface/Dock/Display issues.

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  5. Anonymous
    2021-04-12T10:59:45+00:00

    This continues to happen to me (also Surface Book 3 to Dock 2), but not only when computer sleeps.  I will be using the computer when one (or both) of the monitors will start to glitch or go black.  Sometimes when the monitor goes black, I wait about 10 seconds and it comes back on.  When it glitches, I have to disconnect/reconnect the Dock 2.  Also, frequently, when I wake the computer from sleep one of the monitors is glitching.

    This is occurring on both home and work setup which have the same configuration.  The PC is the same one in both cases, but based on the number of issues in this forum it seems most likely that the issue is with the Dock 2.

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