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. Barb Bowman 80,810 Reputation points MVP Volunteer Moderator
    2020-03-02T11:00:00+00:00

    If it was me and I really wanted a SL3, I'd return for full refund. Then
    repurchase. That would restart the return window clock. Rinse and repeat.

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  2. Anonymous
    2020-03-14T20:27:49+00:00

    Hi everyone, 

    I’ve had similar issues to all of you, more specifically JDBull7. I have a Surface Laptop 3 which i bought some time in October, a week after it came out. Anyway, i just purchased a USB-C to HDMI splitter adaptor as I have an HP 27er display and plan on getting another one. When I plugged in the adaptor, the laptop made a sound as if it recognized something plugged in, and my display would turn on- but no signal. I then went to the system settings to check the display, then hit detect, and windows told me it could not detect the display. After that, I checked “devices”, and ironically it said “HP 27er”, therefore it knew it was connected to a display.  I have tried multiple fixing measures, but they have not worked. This is frustrating, and i can’t really believe such an expensive device has such faults.

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  3. Anonymous
    2020-03-18T17:25:49+00:00

    I also have the same issue with a newly bought (and updated) SL3. When I plug an USB-C to HDMI dongle in, a connection sound plays but it never recognizes the external display. The same dongle/external display works fine with my Surface Go. I've tried different HDMI cables and using an older version of the Iris graphics driver, but the same issue persisted. I hope Intel/Microsoft fixes this issue soon.

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  4. Anonymous
    2020-03-22T16:10:53+00:00

    I have a similar issue. Since the latest graphic update on my surface laptop 3, my extended screen works but one of them randomly get kind of blurry... Disconnecting the dock and connecting it back fixed it... And yeah i tried reinstalling the drivers, clearing the cache and updating the surface dock... Same issue. 

    It is not a monitor, wires ou dock issue as i have the exact same problem at home and the office.

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  5. Anonymous
    2020-03-27T14:59:00+00:00

    Thank you for reporting this issue. We are actively investigating.

    Thanks,

    Greg

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