Fixes

USB C to DisplayPort cable not working / no signal

However, some users have posted on forums about a USB C to DisplayPort with no signal. When that issue arises, connected DisplayPort monitors don’t display anything except a no signal message.

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

1. Run a driver scan with DriverFix

The USB C to DisplayPort no signal error can be a graphics card issue, which DriverFix can potentially resolve. DriverFix is driver updater software that scans for outdated and missing drivers and enables users to quickly update them.

Although you can manually update drivers, DriverFix will quickly tell you what drivers need updating. The DriverFix Pro version also automatically downloads and installs them. Its extensive driver database and lighting quick scans make it a good choice for updating drivers.

First, some users might need to reconnect their monitors with HDMI ports so they have working VDUs. When you’ve installed and launched DriverFix, it will automatically scan drivers. Select to update the graphics card driver. Then you can select an Automatically Install option in DriverFix Pro.

Other useful features

  • Includes a download manager that displays download progress
  • Enables users to schedule driver scans with its schedule manager
  • Includes a driver backup feature
  • Live chat support provided for DriverFix
DriverFix

DriverFix

DriverFix promises incredibly fast driver updates to ensure fast fixing of almost any PC problem.

2. Check if the cable is loose

It might be the case that your USB C to DisplayPort cable is loose. So, make sure your connector cable is correctly plugged into the DisplayPort port and USB C slot.


3. Check the DisplayPort cable’s condition

When a no signal error arises on DisplayPort monitors, there might be an issue with your USB C to DisplayPort cable.

So, carefully check the overall condition of the cable. If the cable isn’t in entirely good condition, you might need a replacement one.


4. Unplug the PC and Monitor to reconnect them

  1. First, power off your PC.
  2. Unplug the PC’s mains plug.
  3. Then unplug the monitor the no signal issue arises on (and completely disconnect its USB C to DisplayPort cable).
  4. Wait for about five minutes.
  5. First, reconnect the monitor to the PC with the USB C to the DisplayPort cable.
  6. Plug the VDU back in.
  7. Plug your PC back in.
  8. Turn your PC on.

5. Adjust the refresh rate settings in Windows

  1. If you can do so, try adjusting the refresh rate settings in Windows by clicking Settings on the Start menu.
  2. Then click System and Display in Settings to open the tab directly below.
    Display tab usb c to displayport cable not working
  3. Click Advanced display settings to open a properties window.
  4. Then select the Monitor tab in the shot directly below.
    Monitor tab usb c to displayport cable not working
  5. Select an alternative refresh rate on the Screen refresh rate drop-down menu.
  6. Click the Apply button, and select the OK option.

6. Check if your PC supports DisplayPort Alternate Mode

Laptop ports usb c to displayport cable not working

Not all PCs have USB C ports that support DisplayPort Alternate Mode. DP Alt Mode is a USB C feature that enables users to directly connect DisplayPort VDUs to their PCs.

So, have a look through your PC’s manual or webpage to check if its USB C slot supports DP Alt Mode. If your USB C slot doesn’t support DisplayPort Alternate Mode, you’ll need a USB C to DisplayPort adapter for monitors to resolve the no signal issue.

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