Windows does not detect second display after windows update.

Anonymous
2023-04-26T20:26:48+00:00

All drivers are freshly installed and up to date. Graphics card is barely a year old and all cables also checked. The monitor thats not detected does work also.

Everything worked until 2days ago when windows updated and now windows does not detect the second display.

Please help thank you.

Windows for home | Windows 10 | Devices and drivers

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Anonymous
2023-04-26T21:02:02+00:00

Hello ScrP, welcome to the Microsoft community, I'll be happy to help you today;

I understand that after an update the second monitor is not detected;

What exactly is the model and manufacturer of your graphics card?

Are you using an HDMI cable to connect the second monitor?

Are you using a laptop or desktop?

Before answering the question, I suggest you try to force the detection of the second monitor;

Press Windows key + i and go to System;

Click Display;

Scroll down to Multiple screens, click Detect;

Then press the keys together: Windows key + P and select the Extend option;

Verify that the second monitor is detected;

See you soon!

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  1. Anonymous
    2024-02-05T18:08:52+00:00

    I have had a similar issue with a Lenova T14 Thinkpad connected to a Samsung M8 display as a second monitor via a HDMI cable.

    I found that the second monitor can be detected when I turn on the monitor before powering up the laptop (e.g., restart or wake from sleep). Makes me think the HDMI port is disabled if no signal detected during start up or wake up.

    I could also detect the second monitor if I unplugged and then plugged in the HDMI cable to the laptop (with the second monitor turned on).

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  2. Anonymous
    2024-02-15T14:24:11+00:00

    Last nights update took out my two monitor ports and cant get my intel-based think-pad to detect them anymore. tried turning off an plugging them in on reboot as well as adding them after reboot. checked driver and have most up to date one. any other ideas? I assume last night's update affected many ppl this way this morning.

    Thanks

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  3. Anonymous
    2024-02-15T20:49:44+00:00

    Yes I am in the same boat. I have three dell 2723qe displays. . .When I turn the computer on, I see the boot up logo on all three screens, so I know there is not hardware issue, cable or otherwise. However when the window's login screen comes up, on the main display of the three is working. And then after booting into windows, same. Only the main display works. the other two are not seen and cannot be detected.

    This is really killing my workflow as I work remotely. 100% sure this is a Windows issue or at least windows made some type of change. This setup has worked without flawlessly for over a year until this my most recent update.

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  4. Anonymous
    2024-02-23T19:34:43+00:00

    Same boat here... I literally just unplugged my computer to move it to another room and now it won't detect either of my 2nd monitors (I've tried two).

    When I try to detect a new monitor nothing happens. I managed to force find it but it won't work and I'm stuck with this and no idea how to fix the Microsoft Basic Display Adapter (No ACPI Support) issue. I updated my graphics drivers and windows is up to date.

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