Surface Laptop 3 (Intel) issue with DP1.2 monitor after installing January 2020 updates

Anonymous
2020-02-01T12:22:04+00:00

Just a heads up and if someone from Microsoft sees this maybe talk to the Surface team:

After installing the January 2020 driver and firmware updates for Microsoft Surface Laptop 3 (Intel), my machine detected my external monitor (Dell U2715H) as 640x480.

The connection is made from SL3 -> Lenovo USB-C Dock Gen 2 -> Displayport to Mini Displayport on the Dell U2715h.

The problem went away after I disabled DP1.2 on the Dell Monitor and the screen was detected with its native resolution of 2560x1440 again.

I think this should be added to the known issues on this article if possible: https://support.microsoft.com/en-us/help/4526150/surface-laptop-3-update-history

Surface | Surface Laptop | Display and screen

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  1. Anonymous
    2020-02-13T16:38:33+00:00

    Hi Janette,

    Being new to the MS ecosphere...

    1. Has a report been submitted already?
    2. What are the SLAs for responding to a fix?
    3. How are the solutions implemented? Do we expect another Surface update? Individual reach outs? etc. 

    This is severely impacting me and several others. I believe a clearer expectation of solutions would be much appreciated for the interim.

    Thank you.

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  2. Anonymous
    2020-02-14T15:30:23+00:00

    Is there any update on this? Very frustrating. I can't believe only a few of us have this problem.

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  3. Anonymous
    2020-02-14T16:37:52+00:00

    Is there any update on this? Very frustrating. I can't believe only a few of us have this problem.

    Right?

    And I just had another windows update last night.

    We need a Microsoft rep to really look into this.

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  4. Anonymous
    2020-02-19T23:36:15+00:00

    Here is my dxdiag:

    https://1drv.ms/t/s!AnhAdg0g1FGBtLZYoaMlyQrolTIcGA?e=ipsMKr

    Surface Laptop 3 connected to a Surface Dock.

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  5. Anonymous
    2020-02-24T21:53:28+00:00

    Hi - I just recieved this from MS (Janette) - tried it - didn't work - did anyone have any success?

    Rodney

    *******************

    Hello, Rodney. 

    We're sorry for the late response. We have submitted your information to our internal team and awaiting feedback/updates regarding this. For the meantime, can you try the following steps in the same exact order?

    • Disconnect peripherals from the Surface Laptop 3 including the Surface Dock (unplug it from the wall outlet).
    • Go to Device Manager and click on View, then select Show Hidden Devices.

    Expand Monitors and delete all drivers there, except for Surface Display.

    Restart the device.

    • Clear your display cache.
    1. Undock your Surface from the Surface Dock or disconnect the monitor from your Surface.
    2. Download the Surface Dock registry file. Choose to Open the file. This file will clear your cache, whether you have a dock or not.
    3. Select and run surface dock registry.reg.
    4. Select Yes to allow changes to your Surface, select Yes to confirm, and then select OK to close.
    5. Restart your Surface, reconnect the Dock and/or monitors, and try your external display again.
    • Reconnect your Surface Laptop 3 to your Surface Dock and external monitor.

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