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
    2020-02-07T19:18:49+00:00

    Hi, Barb Bowman!

    Since the diag report is lengthy. This is to avoid flooding up a space in this thread. We need the notepad file and submit it to our internal team.

    Thank you!

    Respectfully,

    Janette_Z

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  2. Anonymous
    2020-02-10T18:15:06+00:00

    Hi, Jan Olbrecht!

    We have not heard from you since February 7. We sent you a private message and I hope you will be able to respond.

    Thanks for your time!

    Regards,

    Janette_Z

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  3. Anonymous
    2020-02-10T19:03:41+00:00

    All right, sorry, haven't responded as this should be trivially easy to reproduce at Microsoft.

    I'm running version 26.20.100.7641 of Intel's Iris Plus graphics driver. As this apparently impacts SL3 and SP7 I would expect someone can reproduce this in house at Microsoft and take it from there.

    -Jan

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  4. Anonymous
    2020-02-10T21:38:58+00:00

    Hi, everyone!

    Please go to this page to get the steps to Open and run DxDiag.exe

    Kindly save the file as Notepad.

    If any of you has the information, let me know so we can send you a private message for you to upload it.

    Regards,

    Janette_Z

    let me know and I will send you the dxdiag file from my system which has this exact problem

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  5. Anonymous
    2020-02-11T00:04:29+00:00

    Thanks a lot, RodneyCruise.

    I am sending you a private message so we can include this in our report to Microsoft.

    Regards,

    Janette_Z

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