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
    2021-08-14T12:54:54+00:00

    I was able to resolve the issue only by buying a Type C to HDMI adapter from Microsoft & HDMI cables. All other efforts are a waste. Latest firmware/(Win + Ctrl + Shift + B) . The only other alternative there is a to buy a ACTIVE TYPE C to HDMI cable. The passive TYPE C to HDMI cables will never work from surface dock2.

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  2. Anonymous
    2021-08-17T12:49:01+00:00

    I have the same issue with dual monitors on Surface Dock 2. The setup sounded great when I purchased it, but has been disappointing to constantly get a black screen on one monitor, after waking up the computer.

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  3. Anonymous
    2021-08-17T21:19:53+00:00

    Hi,

    To save you reading all the previous responses, pop out and buy a Genuine Microsoft Usbc-Hdmi adapter for each monitor.

    Should solve all the issues.

    Regards Scott

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  4. Anonymous
    2021-08-17T21:30:52+00:00

    I did and it's working

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  5. Anonymous
    2021-09-15T12:18:04+00:00

    Sure, I've had success several times with different "fixes" only to have it STOP WORKING AGAIN and AGAIN every time MS pushes an update. I was enjoying several months of two external monitor usage (with the occasional reset required) only to wake up this morning to another update and now my second monitor is dead, dead, dead. Buying additional MS products and active cables is not a permanent fix - it's a temporary patch until the next update comes along.

    If you're running without any issues (ever) then I'd seriously like to know for how long, and exactly what cables you're using and HDMI-C adapter.

    I'm tired of this - So what's the alternative to this POS if I want to run two external monitors? Is there one?

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