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usb c dp alt mode not working on my laptop

Anonymous
2023-05-18T08:31:10+00:00

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I bought a laptop because it has a type-c display port feature, in order to easily change between my MacBook pro and laptop and work with my external display.

I faced an issue in that the type-c display port doesn't work on my laptop.

The monitor is MSI Optix MAG274QRF QD, the cable is THUNDERBOLT 3 (USB-C) CABLE 0.8M APPLE (MQ4H2ZM/A), the laptop is GIGABYTE G5 KD

When I tried to update all drivers from the official site, I faced new interesting issue.

Prerequisites:

  1. My laptop is turned on
  2. Monitor is plugged into the laptop by a type-c display port

Steps to reproduce:

  1. Download SerialIO-Intel [30.100.2129.8] Nov 09, 2021 driver from the official site.
  2. Start and install it.

Right after installing the screen blinks, the Windows sound of the new connected device plays, and the external display start working. If I unplug the monitor, then plug in it again, it doesn't work again. After doing all steps again, it starts working until restarting/turning off the laptop, and unplugging/plugging in the monitor. By the way, the monitor is working fine with my Macbook.

So I came to the conclusion, that it's the software problem, as it works fine after driver installation.

My OS info:

Edition Windows 10 Pro

Version 22H2

Installed on ‎04.‎10.‎2022

OS build 19045.2965

Experience Windows Feature Experience Pack 1000.19041.1000.0

Please help me to fix this issue.

Windows for home | Windows 10 | Devices and drivers

Locked Question. This question was migrated from the Microsoft Support Community. You can vote on whether it's helpful, but you can't add comments or replies or follow the question.

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  1. Anonymous
    2023-05-18T11:04:58+00:00

    Ok, I'll try it. Should I install any drivers from the official site? Or all drivers should be installed?

    1 person found this answer helpful.
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  2. Anonymous
    2023-05-18T11:15:11+00:00

    Hi there, thank you for your response.

    Download and install all pending updates for any driver for your device specifically the ones for the USB C port and Display driver.

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  3. Anonymous
    2023-05-18T09:31:33+00:00

    Hi Ruslan, thank you for your response.

    Since the drivers had been updated and reinstalled along with other troubleshooting steps, it would be best to proceed with in-place repair. An in-place upgrade allows you to go from an older operating system to a newer one while keeping your settings, personal files, and data intact while repairing corrupted system files, apps, and even incompatible drivers on the system.

    Here is a video of the process you can refer to.

    https://www.microsoft.com/videoplayer/embed/RE2...

    I hope this helps. Feel free to reply if you still need further assistance, and I'll be more than happy to assist you.

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  4. Anonymous
    2023-05-18T09:19:52+00:00

    Hi, thanks for the reply.

    1. I just updated BIOS to FB05 version, the latest from the official laptop site for the Windows 10.
    2. Just tried reinstall 3.10/3.20 host controllers as you described. Didn't help.
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  5. Anonymous
    2023-05-18T09:11:00+00:00

    Hello Ruslan,

    My name is Hanem, an independent advisor, and I'm here to help you.

    I'm sorry that you are experiencing this issue, and I will try my best to assist you.

    Have you already tried to reinstall the USB port driver? If not yet, please do so.

    Right-click on the Windows start menu.

    Select Device Manager from the list of options.

    Double-tap on Universal Serial Bus controllers to expand the option.

    Right-click on Extensible Host Controller, and from the context menu, choose Uninstall Driver.

    Restart the device to automatically reinstall the driver.

    Also, check your device manufacturer's website for any pending firmware and BIOS updates for your laptop model.

    I hope this helps, feel free to contact me for any further questions.

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