When encountering HDMI connection issues on a Windows 10 system with Intel graphics, there are several potential causes and troubleshooting steps to consider:

Check HDMI Cable and Ports:
- Ensure that the HDMI cable is securely connected to both the computer’s HDMI port and the external display (e.g., monitor, TV).
- Try using a different HDMI cable or connecting to a different HDMI port on both the computer and the display to rule out cable or port issues.
Update Intel Graphics Drivers:
- Outdated or faulty graphics drivers can cause HDMI connection problems.
- Visit the Intel website or use the Intel Driver & Support Assistant to download and install the latest graphics drivers compatible with your system’s hardware and Windows 10 version.
Adjust Display Settings:
- Right-click on the desktop and select “Display settings.”
- Ensure that the correct display is selected and recognized by Windows.
- Adjust display resolution, scaling, and orientation settings as needed to match the capabilities of the external display.
Check Device Manager for Graphics Issues:
- Press Win + X and select “Device Manager.”
- Expand the “Display adapters” category and ensure that the Intel graphics adapter is listed without any exclamation marks or warning symbols.
- If there are any issues with the graphics adapter, right-click on it and select “Update driver” to attempt to resolve the issue.
Enable HDMI Output in Graphics Control Panel:
- Right-click on the desktop and select “Graphics Properties” or “Intel Graphics Settings” from the context menu.
- Navigate to the “Display” or “Multiple Displays” section.
- Ensure that the HDMI output is enabled and configured correctly (e.g., extended desktop, duplicate display).
- Adjust any additional settings related to HDMI output, such as color depth, refresh rate, or overscan/underscan options.
Restart Graphics Driver:
- Press Ctrl + Shift + Win + B simultaneously to restart the graphics driver.
- This keyboard shortcut can help reset the graphics driver and re-establish the HDMI connection in some cases.
Try Different Power Management Settings:
- Open “Control Panel” and navigate to “Power Options.”
- Select the power plan currently in use and click on “Change plan settings.”
- Expand the “Display” settings and set both “Turn off the display” and “Put the computer to sleep” options to “Never.”
- Apply the changes and test the HDMI connection again.
Perform System Updates:
- Ensure that Windows 10 is up-to-date with the latest updates and patches.
- Go to Settings > Update & Security > Windows Update and click on “Check for updates” to download and install any available updates.
“If you continue to experience HDMI connection issues after trying these troubleshooting steps, it’s possible that there may be a hardware problem with either the computer’s HDMI port or the external display. In such cases, consider contacting the manufacturer for further assistance or having the hardware inspected by a professional technician”