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External LG monitor not being detected by laptop

Anonymous
2022-11-01T12:59:14+00:00

Hello, I am having a very weird issue with external monitor LG 24gn600-B

The monitor was tested with my laptop and a PC - it didn't work. I decided to visit a store because I wanted to refund it. An employee connected the monitor with HDMI to random laptop and it worked. Now I don't know what's going on - here are some stuff I have tried:

  • Connecting the monitor with my laptop and a PC through HDMI cables (3), DisplayPort 1.4 cable (it came with the monitor), HDMI to DP cable;
  • Tried all the ports in devices;
  • Successfully connected my laptop and a PC to a TV and other monitor (AOC) through a HDMI cable;
  • Using Device Manager to update the drivers by searching automatically - already had the best drivers installed. (The monitor isn't showing in the Device Manager);
  • Updating Windows 11;
  • Installing drivers from the official LG website for the monitor. Unfortunately the EXEs don't even want to open because they don't detect the monitor;
  • Manually detecting a monitor in settings;
  • Updating Nvidia drivers in Geforce Experience;
  • Re-enabling display driver and resetting display driver (win+shift+ctrl+b);
  • Using Rigorous display detection in Nvidia Control Panel;

Things I haven't tried yet: (I don't know what else to do)

  • Using USB C to DisplayPort cable - because I don't think it will work.

I am only focusing my laptop for the fix though, so the PC isn't really relevant but it only was used to test stuff here.

I have a Lenovo Legion Y540-17IRH with Windows 11 and GTX 1660 TiIs it possible my laptop isn't compatible with the said monitor, if so then what should I do?

Windows for home | Windows 11 | Display and graphics

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  1. Anonymous
    2022-11-03T01:24:00+00:00

    Hello, NAZOR.

    I'm glad you found this issue and look forward to it being resolved. Thank you for your support of Microsoft products.

    If something is not clear, please feel free to let me know.

    Best wishes.

    Lenka-MSFT| Microsoft Community Support Specialist

    "We value your feedback, click Yes or No to help us improve the support experience."

    "Let us know if you got the help you needed by clicking yes or No."

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  2. Anonymous
    2022-11-02T16:54:31+00:00

    Thank you for your answer!

    Fortunately I found the issue! It was the VESA mount screws that pushed the ports outside. They probably are too long, so I'll be searching for shorter ones.

    The monitor isn't an issue at all, so if anyone is having issues like this, make sure to check the monitor without VESA mount first.

    Best regards,

    Nazor

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  3. Anonymous
    2022-11-02T07:27:36+00:00

    Hello, NAZOR.

    Thank you for using our Microsoft Community.

    Let me help you with the issue of the laptop not detecting the external LG monitor.

    Thank you for your efforts to resolve this issue, I appreciate active users like you.

    I can tell from your series of solutions that both your laptop and LG monitor are fine.

    So, the problem may be a faulty interface between the HDMI to DP cable, can you try replacing the adapter?

    I look forward to your reply and to this problem being solved.

    If anything else is unclear, please feel free to let me know.

    Best regards

    Lenka-ISFT|Microsoft Community Support Specialist

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