How to: Fix Usb C to Displayport Cable Not Working/No Signal

How to: Fix Usb C to Displayport Cable Not Working/No Signal

Here we can see, “How to: Fix Usb C to Displayport Cable Not Working/No Signal”

  • Some users with USB C to DisplayPort connectors connecting their PCs to monitors are experiencing a no signal error.
  • This article contains various possible remedies for the USB C to DisplayPort signal issue.

Users can link USB C to DisplayPort cables to connect to an alternative monitor port to HDMI.

Users use the DisplayPort interface with dual monitor setups for their second monitor. Some users also utilize USB C to DisplayPort connectors to connect laptops to external monitors.

However, some customers have complained of a USB C to DisplayPort connection that isn’t working. When this problem occurs, connected DisplayPort displays show nothing but a no signal warning.

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How can I fix a USB C to DisplayPort with no signal error?

1. Run a driver scan with DriverFix

A graphics card issue could be causing the USB C to DisplayPort no signal error, which DriverFix can potentially fix. DriverFix is a driver updater that detects outdated and missing drivers and allows users to update them quickly.

Although you can update drivers manually, DriverFix will rapidly identify which ones need to be updated. The DriverFix Pro edition also downloads and installs them automatically. It’s a superb alternative for updating drivers because of its large driver database and lightning-fast scans.

To begin, some users may need to reconnect their monitors to HDMI connections to have functioning VDUs. DriverFix will automatically scan your drivers after you’ve installed and activated them. To update the graphics card driver, select it. Then, under DriverFix Pro, choose the Automatically Install option.

Other useful features

    • A download manager displays download status, and a schedule manager allows users to schedule driver scans.
    • A driver backup capability is included.
    • DriverFix offers live chat help.

2. Check if the cable is loose

Your USB C to DisplayPort cable may be damaged. As a result, double-check that your connector cable is properly inserted into the DisplayPort port and USB C slot.

3. Check the DisplayPort cable’s condition

There could be a problem with your USB C to DisplayPort cable if you get a no signal error on DisplayPort monitors.

As a result, inspect the cable’s general condition. If the cable isn’t in perfect working order, you may need to replace it.

4. Unplug the PC and Monitor to reconnect them

    1. To begin, turn off your computer.
    2. Remove the mains plug from the PC.
    3. Then unplug the monitor if there is no signal (and completely disconnect its USB C to DisplayPort cable).
    4. Allow five minutes to pass.
    5. Connect the display to the computer using the USB C to DisplayPort connection.
    6. Reconnect the VDU.
    7. Reconnect your computer.
    8. Start your computer.

5. Adjust the refresh rate settings in Windows

    1. If possible, change the refresh rate settings in Windows by going to Settings from the Start menu.
    2. Then, choose System and Display in Settings to access the tab directly below.
    3. To enter a properties window, click Advanced display settings.
    4. Then, as shown in the image below, pick the Monitor tab.
    5. On the Screen refresh rate drop-down menu, choose an alternative refresh rate.
    6. Select the OK option after clicking the Apply button.

6. Check if your PC supports DisplayPort Alternate Mode

All USB C ports do not support DisplayPort Alternate Mode. DP Alt Mode is a USB C feature that lets users connect DisplayPort VDUs to their computers directly.

Check the documentation or website for your PC to see if the USB C slot supports DP Alt Mode. If your USB C slot does not support DisplayPort Alternate Mode, you’ll need a USB C to DisplayPort monitor converter to fix the problem.

Those are the most likely solutions for the USB C to DisplayPort no signal problem.

If none of the previous solutions works, the display could be having a hardware problem. If your VDU is still under warranty, you may be able to return it to the manufacturer for repairs.


I hope you found this guide useful. If you’ve got any questions or comments, don’t hesitate to use the shape below.

User Questions

1. What’s wrong with my USB-C monitor?

Changing the cable may help. Check if your PC, external monitor, and cable support DisplayPort or MHL alternate modes. Ensure that the device or dongle is directly linked to your computer. Ensure that the device or dongle is connected to a USB-C port on your computer that supports Alternate Mode.

2. What are the signs that my USB-C device supports DP Alt Mode?

The icons / emblems next to the ports on a Windows laptop indicate what you can accomplish with the port. Is there a lightning bolt (Thunderbolt 3) icon next to the USB C port? Then you may use this connector to charge and send a video signal, allowing you to connect a monitor. This port supports DisplayPort alt mode.

3. Do all USB-C cables support alt mode?

You might also know that compatible USB-C systems can support screens, and it’s crucial to note that many USB-C docking stations require Full-Featured USB-C cables since they use a standard known as VESA DisplayPort Alternate Mode (“DP Alt Mode” or “Alt Mode”).

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4. usb-c to displayport cable doesn’t give any signal – Reddit

usb-c to displayport cable doesn’t give any signal from techsupport

5. External USB-C monitor doesn’t work. : r/macbookpro – Reddit

External USB-C monitor doesn’t work. from macbookpro