USB-C Multiple Monitors Stopped Working

[jxtudor]

Hello, my Mokin USB-C hub is recognized on my laptop but it is not recognizing the 2 monitors plugged into the hub, yet it recognizes the wireless keyboard and mouse and the speakers.  This worked for me for months and all of a sudden stopped working with my HP laptop.  Oddly enough when I plug in this same USB-C hub into my work Dell laptop, it recognizes both monitors.

[Raj_05]

Hi @jxtudor,

Welcome to HP Support Community.

Thank you for posting your query, I will be glad to help you.

It seems like there might be a compatibility issue or a configuration problem with your HP laptop. Here are some steps you can take to troubleshoot the issue.

1. Check Display Settings:

   • Right-click on the desktop and select "Display settings."
   • Make sure that both monitors are detected by the system.
   • Verify that the correct display mode (extended, duplicate, etc.) is selected.

2. Update Graphics Drivers:

   • Ensure that your graphics drivers are up to date. Go to the official HP website or use Windows Update to get the latest drivers.

3. Check USB-C Port:

   • Ensure that the USB-C port on your HP laptop is functioning correctly. Try using a different USB-C port if available.

4. Power Cycle the Setup:

   • Power off the laptop and disconnect the USB-C hub.
   • Reconnect the hub and power on the laptop.

5. Check Power Supply:

   • Verify that the USB-C hub is receiving adequate power. Some hubs require an external power source or may draw power from the laptop.

6. BIOS/UEFI Settings:

   • Check your laptop's BIOS or UEFI settings for any options related to USB ports or external displays. Update the BIOS if a newer version is available.

7. Reset Hub and Monitors:

   • Disconnect the monitors from the hub and power cycle the hub.
   • Reconnect the monitors and check if they are recognized.

8. Check System Event Viewer:

   • Open the Event Viewer on your HP laptop and look for any error messages or warnings related to USB, graphics, or display issues.

I hope this helps.

Take care and have a good day.

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Alden4
HP Support