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
    2020-12-03T22:10:37+00:00

    I had this same issue - and ended up switching the dock to a different circuit and solved the problem - working perfectly fine now.

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  2. Anonymous
    2020-12-03T05:56:00+00:00

    so my work around is (& I have the luxury of having 2 surface Pro (one is a 7 the other is a 4),  and also two docks (Gen 1 and Gen 2) at different locations.    Just for kicks,  i switched my Pro 4 to dock with Gen 2 and Pro 7 to Gen1 to see if that would make any difference.  Well   I hit the lottery with this combo, and they now  work all the time now.    Go figure...

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  3. Anonymous
    2020-12-03T02:58:26+00:00

    I gave up and bought the old Dock 1. 

    Another responder said it only worked with the $65 microsoft cables,

    i wish they had told me before I wasted hours of time that they only work with their cables!

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  4. Anonymous
    2020-12-01T03:26:32+00:00

    I gave up.  Did all the trouble shooting, watched Youtube videos... nothing worked. I returned it!  It was my second return bc MS tech support told me the unit was defective. Second one didn't work any better.  I ordered another Dock 1.  Hours of wasted time.

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  5. Anonymous
    2020-12-01T03:17:39+00:00

    OMG are you me, I am in the same situation as you.

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