USB-C monitor not detected in Windows 11

If your USB-C monitor not detected on your Windows 11/10 PC, you are not alone. Many users have reported similar issues, especially after recent Windows updates, where external displays connected via USB-C ports would suddenly stop working. This can be frustrating, especially if your monitor was working perfectly before the update. This post will walk you through the troubleshooting steps to fix the issue.

Why doesn’t my USB-C interface support display in Windows 11?

Several factors can cause your USB-C port to stop working for display in Windows 11. Outdated or incompatible drivers are a common cause, especially after upgrading to a new operating system. Additionally, hardware issues, such as a damaged USB-C port, cable, or adapter, can disrupt the connection. Power management settings in Windows 11 can disable USB ports to save power, affecting device connectivity. Additionally, incorrect BIOS or UEFI settings can disable USB-C functionality or video output, preventing the port from working properly.

Fix USB-C Monitor Not Detected in Windows 11

To fix USB-C monitor not detected in Windows 11use these solutions:

1. Check physical connections
2. Roll back or reinstall your graphics/USB-C drivers
3. Check USB power settings
4. Disable USB Selective Suspend
5. Undo last updates
6. Check BIOS/UEFI settings

Let’s take a closer look at this.

1) Check physical connections

Make sure the USB-C cable is securely connected to the monitor and laptop/PC. Use a different USB-C cable or try a different USB-C port on your device to see if the issue is caused by a faulty cable or port. This can help determine if the problem is with the cable or port itself. Also, make sure that both the USB-C cable and the USB-C port on your device support video output (some USB-C ports and cables are designed for specific functions only, such as charging devices or transferring data, and do not support video output).

2) Roll back or reinstall your graphics/USB-C drivers

Graphics drivers are responsible for managing video output and display functions in Windows, and USB-C drivers are key to managing the functionality of USB-C ports, including their ability to handle video output, transfer data, and deliver power. If these drivers are outdated, corrupt, or incompatible, they can cause problems with detecting or using external monitors, including those connected via USB-C.

Right click Start button and select Device Manager.Expand Universal Serial Bus Controllers section in the Device Manager window and look for any errors or warning symbols. Yellow triangle with an exclamation mark A check mark next to the device name indicates a problem with the device (driver problems, hardware failures, or compatibility issues). Red X shows that the device is turned off or not working properly.

If you see any issues, right-click on the device and select Properties > Driver tab. If available, select Restore driver to revert to the previous version that was working before the update. Otherwise, select Uninstall devicefollow the instructions and restart your computer. Windows will reinstall the necessary drivers.

Repeat the above steps for Display adapters Section (for graphics drivers).

3) Check USB power settings

The USB power settings in Windows manage the behavior of USB ports to save power and can affect the functionality of devices connected through those ports. If these settings are enabled, Windows can reduce power to USB ports, potentially causing issues with video output or device detection.

Open Device Manager and expand the section marked Universal Serial Bus ControllersRight click on each USB Root Hub or Universal USB Hub and select Properties.

Go to Energy management bookmark and uncheck option ‘Allow the computer to turn off this device to save power‘. Click Okay to apply the changes.

By changing these settings, you can rule out power management as the cause of your USB-C display issues and ensure that your USB ports are operating at full performance.

4) Disable USB Selective Suspend

USB Selective Suspend is a power-saving feature in Windows that allows the operating system to put individual USB ports into a low-power state when they are not actively being used. This can help save energy, especially on laptops.

However, the low-power state can sometimes disrupt the stable operation of devices connected through these ports, including USB-C monitors. This can cause them to appear to not be working properly or to disconnect and reconnect frequently. Disabling this feature can improve the reliability of the connection between the USB-C port and the monitor by ensuring that the monitor remains detected and operational at all times.

Open Control panel and go to Hardware & Sound > Power OptionsClick on Change plan settings next to your chosen power plan. Click on Change advanced power settings.

IN Power Options window, expand USB Settings section. Expand Selective USB Suspend setting. Set option to Off for both On the battery AND Connected (if applicable). Click Use and then Okay.

5) Undo recent updates

If a recent update is causing issues with your USB-C monitor, reverting the update can reverse any changes that may have led to these issues, potentially restoring normal system functionality.

To undo the update, press Win + I and go to Settings > Windows Update. To choose Update Historyscroll down and click Uninstall updates user ‘Related Settings’.

This will bring up a list of recently installed updates on your system. Find and select the update you want to roll back. Click Uninstall and follow the on-screen instructions. After uninstalling the update, restart your computer to apply the changes and check if the problem is resolved.

To read:How to Fix USB-C Problems on Your Windows PC

6) Check BIOS/UEFI settings

In some cases, USB-C video output may be disabled in the BIOS or UEFI. Enabling it may resolve issues with Windows detecting external displays.

Restart your computer and press a designated key during startup (often F2, F10, DEL, or ESC) to enter BIOS/UEFI ConfigurationIf you are unsure of the key, check your laptop or motherboard manual.

Search for section names as Advanced, Peripherals, USB Setup or Thunderbolt Setup. Make sure your USB-C ports are enabled. If you have Thunderbolt options or other USB-C features, make sure they are configured to be enabled.

If none of these steps resolve the issue, contact your manufacturer’s technical support for further assistance. They may determine that you need to replace the motherboard (the USB-C port is integrated into the motherboard) to resolve the issue.

To read: The USB device was not recognized.

Does Windows 11 support USB-C displays?

Yes. As long as your device and connected display are compatible DisplayPort Alternate Mode (DP Alternate Mode) Or Thunderbolt 3/4 standards, Windows 11 will support video output over USB-C. These standards are necessary to enable video transmission over a USB-C connection.

Read more: USB WiFi not working, access violation error 100417CF.