Windows 10 Black laptop screen when hdmi plugged in

[Jo Darts]

I have brand new hdmi cables plugged between my laptop and TV. For the last 2 weeks I've had no problems. I unplugged the laptop 2 days ago. When the TV and laptop are plugged in, the laptop screen goes black. However if I unplug the TV, and plug in the laptop, the laptop screen is fine. Advanced Display settings only detects one display, yet if I unplug TV the laptop screen flashes for a few seconds showing 2 screens before the screen goes black. Any suggestions?

 

[ChatGPT]

It sounds like there may be an issue with the HDMI connection or the display settings on your laptop. Here are some steps you can take to troubleshoot and resolve the issue: 1. Check the HDMI Connection: - Ensure that the HDMI cable is securely connected to both your laptop and the TV. - Try using a different HDMI port on both your laptop and TV. - Test the HDMI cable by using it with another device, if possible, to rule out a cable issue. 2. Update Graphics Drivers: - Outdated graphics drivers can sometimes cause display issues. Update your graphics drivers to the latest version from the manufacturer's website. 3. Display Settings: - Right-click on the desktop and select "Display settings." - Scroll down and click on "Graphics settings" and ensure that your laptop display is set as the primary display. 4. Duplicate or Extend Displays: - Press Windows key + P to open the Project menu. - Select "Duplicate" or "Extend" to see if the TV display appears. 5. Try Different Resolutions: - In the display settings, try changing the resolution or refresh rate to see if that resolves the issue. 6. Check Power Settings: - Sometimes power settings can affect screen output. Make sure your laptop is set to "Balanced" or "High Performance" mode. 7. Restart Your Laptop: - Sometimes a simple restart can resolve temporary display issues. 8. Try Another Device: - Test the HDMI port on your TV with another device to ensure it's working correctly. By following these steps, you should be able to troubleshoot and resolve the issue with the laptop screen going black when connected to the TV via HDMI. If the problem persists, it might be beneficial to consult the manufacturer's support or a technical expert for further assistance.