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
    2020-11-29T01:50:41+00:00

    I am having the same problem.

    I have a surface Pro 7 connected to Docking Station 2. I have a docking Station 1 at office that works fine.

    I called MS tech support and they told me to exchange my docking station. I did that and now I have one of my two monitors regularly displaying and the third is detected by I cannot display anything.

    I updated all the firmware.

    I am using USB-C to HDMI on brand new HP27f monitors.

    It is beyond frustrating.

    Any suggestions?

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  2. Barb Bowman 80,805 Reputation points MVP Volunteer Moderator
    2020-11-29T12:06:59+00:00

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    4 people found this answer helpful.
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  3. Anonymous
    2020-11-29T21:16:27+00:00

    Hi,

    Your problem sounds very close to mine - and you have nice HP monitors.

    The only thing I have had suggested is that the cables I use MUST be active, not passive.

    I have two arriving today. If this fixes it I will be happy.

    2 x AUD$65 active adapters USBC-HDMI. Almost like Apple now.

    If this makes a difference I'll post here.

    BTW I tried four different brand new Dock2. I still get intermittent black screen on one monitor and flickering at the top of the screen.

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  4. Anonymous
    2020-11-29T21:17:24+00:00

    Are your cables Active? I am using passive and this may affect it.

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  5. Anonymous
    2020-11-29T21:57:13+00:00

    The cables I am using are https://en.j5create.com/collections/usb-type-c-cables/products/jcc153g

    I couldnt find whether they are considered active or passive.  Interested in your results.

    Thank you

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