How to fix no signal on HDMI

Complete guide with multiple methods and troubleshooting

7-10 min read
Expert Verified
Last Updated: August 2025

Quick Answer

To fix the 'No Signal' issue on HDMI, start by checking the physical connections, ensuring the correct input source is selected, and updating your graphics drivers. If these steps do not resolve the issue, further troubleshooting may be required.

Medium⏱ 7-10 min read

Prerequisites & Requirements

Before attempting to resolve the 'No Signal' issue on HDMI, ensure you have the following:
  • •A compatible HDMI cable and device (TV, monitor, or projector).
  • •Access to the computer or device settings.
  • •Administrative permissions on the device for driver updates.
  • •Backup important data in case of system changes.

Method 1: Check Physical Connections

This method is the first step to troubleshoot the 'No Signal' issue. It is essential to ensure that all physical connections are secure.
  • •Step 1: Turn off both the source device (computer/laptop) and the display device (TV/monitor).
  • •Step 2: Disconnect the HDMI cable from both devices and inspect it for any visible damage.
  • •Step 3: Reconnect the HDMI cable securely to both devices, ensuring it clicks into place.
  • •Step 4: Turn on the display device first, then the source device. Select the correct HDMI input using the remote or on-screen menu.
  • •Step 5: If the issue persists, try a different HDMI port or cable to verify if the problem lies with the port or cable.

For Windows 11

Follow these specific steps for Windows 11 users:
  • •Right-click on the desktop and select 'Display settings'.
  • •Scroll down to 'Multiple displays' and ensure the display is detected.
  • •If not detected, click 'Detect' to force the system to find the display.

For Windows 10

Windows 10 users can follow these steps:
  • •Right-click on the desktop and select 'Display settings'.
  • •Under 'Multiple displays', click on 'Detect' if the display is not showing.
  • •Ensure the display is set to 'Extend these displays' or 'Duplicate these displays' as needed.

Method 2: Update Graphics Drivers

Updating your graphics drivers can resolve compatibility issues that may cause the 'No Signal' error.
  • •Step 1: Press 'Windows + X' and select 'Device Manager'.
  • •Step 2: Expand the 'Display adapters' section.
  • •Step 3: Right-click on your graphics card and select 'Update driver'.
  • •Step 4: Choose 'Search automatically for updated driver software'.
  • •Step 5: Follow the prompts to install any available updates and restart your computer.

Troubleshooting Common Issues

If you encounter issues during the troubleshooting process, consider the following solutions:
  • •Error: 'No HDMI Signal' - Solution: Ensure the correct input source is selected on the display device.
  • •Issue: Display flickers or goes blank - Fix: Check the HDMI cable for damage and try a different port.
  • •Problem: HDMI audio not working - Workaround: Right-click the sound icon in the taskbar, select 'Playback devices', and set the HDMI device as the default.

Advanced Tips & Shortcuts

For power users, consider these advanced tips:
  • •Keyboard shortcut: 'Windows + P' - Opens the projection options to quickly switch between display modes.
  • •Command line: 'devmgmt.msc' - Opens Device Manager directly for quick access to driver updates.
  • •Hidden feature: 'Graphics Control Panel' - Access specific settings for your graphics card to optimize performance.

Common Mistakes to Avoid

Avoid these common pitfalls:

Expert Tips

Regular maintenance of your hardware and software can prevent HDMI signal issues from occurring.