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Fix USB C to DisplayPort not Working / No Signal
Discover tried-and-true strategies vetted by our team of specialists
3 min. read
Updated onNovember 8, 2024
updated onNovember 8, 2024
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Key notes
To fix various driver issues on your PC, you will need a dedicated tool to find the freshest and the original drivers. You can use PC HelpSoft Driver Updater to do it in 3 easy steps:
The DisplayPort is an alternative monitorportto HDMI that users can connect with USB C to DisplayPort cables.
Users withdual monitor setupsutilize the DisplayPort interface for their secondmonitors. Some users also connect laptops to external displays with USB C to DisplayPort cables.
However, some users have posted on forums about aUSB C to DisplayPortwith no signal. When that issue arises, connected DisplayPortmonitorsdon’t display anything except a no signal message.
How do I know if my USB-C supports DisplayPort?
DisplayPort over USB Type-C compatibility will typically be indicated by the presence of the DisplayPort (DP) logo in close proximity to the USB Type-C connector.
It’s a good thing to first check the compatibility status then move on to other more complex troubleshooting solutions.
How can I fix a USB C to DisplayPort with no signal error?
1. Use specialized software to detect graphics card issues
The USB C to DisplayPort no signal error can be a graphics card issue, which a dedicated tool can potentially resolve.PC HelpSoft Driver Updaterisdriver updater softwarethat scans for outdated and missing drivers and enables users to quickly update them.
Although you can manually update drivers, this tool will quickly tell you what drivers need updating. Its extensive driver database and lighting quick scans make it a good choice for updating drivers.
⇒Get PC HelpSoft Driver Updater
First, some users might need to reconnect theirmonitorswith HDMI ports so they have workingVDUs. When you’ve installed and launched the application, it will automatically scan drivers. Select to update the graphics card driver.
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 DisplayPortportand USB C slot.
When a no signal error arises on DisplayPort monitors, there might be an issue with yourUSB 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.
3. Unplug the PC and Monitor to reconnect them
4. Adjust the refresh rate settings in Windows
- ClickSettingson theStartmenu.
2.Then selectSystemandDisplayin Settings to open the tab directly below.
3.Click onAdvanced display settingsto open the properties window.
4.Then press on theMonitortab.
5.Select an alternative refresh rate on theScreen refresh ratedrop-down menu.
6.Click theApplybutton, and select theOKoption.
If you can do so, try adjusting refresh rate settings via Windows Settings. This should fix the USB C to display port not working issue in no time, if the other solutions failed to do so.
5. Check if your PC supports DisplayPort Alternate Mode
Not all PCs have USB Cportsthat support DisplayPort Alternate Mode. DP Alt Mode is a USB C feature that enables users to directly connect DisplayPortVDUsto 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 DisplayPortadapter formonitorsto resolve the no signal issue.
Those are some of the more likelyfixesfor resolving the USB C to DisplayPort no signal error.
If none of the above fixes resolve the error, there might be a hardware issue with themonitor. You might be able to return yourVDUto its manufacturer for repairs if it’s still within its warranty period.
Matthew Adams
Windows Hardware Expert
Matthew is a freelancer who has produced a variety of articles on various topics related to technology. His main focus is the Windows OS and all the things surrounding it.
He is passionate about the tech world, always staying up-to-date with the latest and greatest. With an analytical view, he likes problem-solving, focusing on errors and their causes.
In his free time, he likes to read and write about history and tries to always develop new skills.
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Matthew Adams
Windows Hardware Expert
He is passionate about everything surrounding Microsoft’s OS, focusing on troubleshooting guides & tips for everyday problems.
