Surface Dock keeps waking up external monitor

Anonymous
2016-07-10T11:30:09+00:00

My monitor (LG 29UM68) is connected to Surface Dock -> SP4, via direct miniDisplayPort.

It keeps entering sleep mode and waking up repeatedly, even though my SP4 is asleep. This does not happen when I connect the monitor to SP4 directly.

Another issue is that if I set to PC Screen Only, after few seconds, it will automatically switch back to external monitor only. Again, this does not happen if I connect monitor to SP4 directly.

These 2 issues only arise if I use Surface Dock.

I have gone through all the steps here (https://www.microsoft.com/surface/en-sg/support/hardware-and-drivers/troubleshoot-docking-station-surface-dock) successfully, but issue persist.

Please help.

Surface | Accessories | Surface Dock

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  1. Anonymous
    2017-10-27T17:49:22+00:00

    I have a Samsung m4k monitor, with DP 1.2 set

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  2. Anonymous
    2017-10-28T10:40:50+00:00

    So these are the potential solutions:

    1. Update Windows
    2. Update Surface Dock firmware

    https://docs.microsoft.com/en-us/surface/surface-dock-updater 3. Clean the registry

    http://download.microsoft.com/download/8/5/5/8554763F-DBF9-41B3-9F12-605FA0A99183/surface%20dock%20registry.zip via https://support.microsoft.com/en-hk/help/4023468/surface-troubleshoot-surface-dock-and-docking-stations 4. Use (active) DP-->HDMI converters (caveat emptor: HDMI 2.0 is required for 4K monitors @ 60Hz)

    Anything else?

    Cheers.

    Edit: What year of the earth is now that this forum still doesn't have an automatic URL parser......

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  3. Anonymous
    2017-10-29T22:06:52+00:00
    1. Use DP-->HDMI converters (caveat emptor: HDMI 2.0 is required for 4K monitors @ 60Hz)

    Can you or someone else recommend any specific model that 100% works?

    Thanks.

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  4. Anonymous
    2017-10-29T22:27:07+00:00

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  5. Anonymous
    2017-11-19T18:18:22+00:00

    I am having the same issue even after following all diagnostic steps. 

    I have updated the dock firmware as of November 3rd. All other updates are complete for windows as well. 

    I use the following hardware. HP 27" ER display and HP 27" ES display.

    I am using the following adapters. DP to HDMI with the supplied HDMI cables for the monitors in conjunction with my surface dock.

    https://www.amazon.com/gp/product/B01N2Z4H7X/ref=oh\_aui\_detailpage\_o05\_s02?ie=UTF8&psc=1 

    The Surface Dock still does not allow the monitors to go to sleep when the SP4 is asleep.

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