How to Fix Windows 10 HDMI Port Not Working
HDMI port issues are common in Windows 10. This article offers effective solutions to help restore normal display functionality.
1. Update Drivers
Outdated or corrupted graphics drivers are a common cause of HDMI ports not functioning properly. To ensure your HDMI port works correctly, make sure your graphics driver is up to date. It is recommended to use Driver Sentry to automatically detect and update drivers, saving time and avoiding the risk of downloading or installing incorrect drivers.
Click the download button to get the latest version of Driver Sentry, install it, and open the software. Click "Scan".
After scanning, it will display which drivers are missing or need updates. Find the graphics driver in the results list and click the "Upgrade" button.
Once the update is complete, it is recommended to restart your computer to ensure the updated driver works properly.
2. Check Hardware Connections
Ensure that both ends of the HDMI cable are securely connected to the computer and the display device (such as a TV, monitor, etc.). If the cable is damaged or worn, try replacing it with a new HDMI cable.
Ensure that the HDMI ports on both the computer and the display device are free from physical damage or dust. If there is dust, use a blower or a soft cloth to clean the ports.
If there are multiple HDMI ports on the computer or display device, try plugging the HDMI cable into another port to rule out a faulty port.
Test the HDMI port by connecting the computer to another display device (like a TV or another monitor) to check if the HDMI port works. If it works on another device, the issue may lie with the display device.
3. Change Display Settings
Right-click on an empty area of the desktop and select "Display Settings".
In Display Settings, scroll to the bottom of the page, find and click the "Detect" button to manually check if the external HDMI display is detected.
If the display device is recognized, you can select "Extend", "Duplicate", or "Second screen only" as the display mode. Choose the display mode that suits your needs.
If the display device is not automatically recognized, click "Advanced Display Settings", ensure the display output settings are correct, and try adjusting the resolution to ensure compatibility with the display device.
4. Adjust Power Management Settings
Press Windows + R to open the Run dialog, type "devmgmt.msc", and press Enter to open "Device Manager".
In Device Manager, expand the "Display Adapters" and "Universal Serial Bus Controllers" sections.
Right-click on the HDMI-related device (such as the display adapter, graphics card, or USB controller) and select "Properties".
In the Power Management tab, uncheck the "Allow the computer to turn off this device to save power" option and click "OK" to save the changes.
Repeat this process for each HDMI device to disable power-saving options, preventing the device from malfunctioning due to power management issues.
5. Run Hardware and Devices Troubleshooter
Click the Start menu, select "Settings" > "Update & Security" > "Troubleshoot".
In the Troubleshoot page, select "Hardware and Devices", then click "Run the troubleshooter".
The system will begin scanning and diagnosing hardware issues and automatically provide solutions. If an issue is found and fixed, reconnect the HDMI device and check if the problem is resolved.
6. Check Windows Updates
Click the "Start" menu, select "Settings" > "Update & Security" > "Windows Update".
In the Windows Update page, click "Check for Updates" to ensure the system has installed the latest security patches and driver updates.
If updates are available, click Install Updates and restart your computer.
Following these steps should resolve the HDMI port issue in Windows 10. If it persists, contact technical support or the hardware manufacturer for further assistance.
See also:
6 Ways to Fix Windows 11 Unidentified Network Issue
How to Fix Windows 10 'This Device Cannot Start (Code 10)' Error
