When I connect my computer and TV with an HDMI cable, why does the screen not display?
It may be due to the following reasons:
Input selection: Ensure you have selected the correct input source on your TV to display the computer’s video signal. Check the TV remote or on-screen menu to switch to the HDMI input port where you connected the cable.
Display settings: Your computer may automatically detect the TV and adjust the display settings, but if it doesn’t, you may need to configure it manually. You can access the display settings on Windows by right-clicking on the desktop and selecting “Display settings” or “Graphics options.” Ensure the TV is recognized and set as the primary or extended display. On macOS, navigate to “System Preferences,” select “Displays,” and configure the settings accordingly.
Resolution compatibility: The screen might not display if the TV and computer have incompatible resolutions. Try adjusting your computer’s screen resolution to match the TV’s recommended resolution. This can be done through the display settings.
Faulty cable or port: Verify that the HDMI cable is securely connected to the computer and the TV. Ensure that the HDMI ports on your computer and TV are not damaged. You can use a different HDMI cable or test the current cable with another device to determine if it’s functioning correctly.
HDMI handshake issue: Sometimes, a compatibility issue can occur between the computer and the TV during the HDMI handshake process. Try turning off both devices, disconnecting the HDMI cable, and then reconnecting and powering them back on.
You can try the above ways to solve the problem.
Maybe you should change to a new HDMI cable.
You’re right
sometimes all it takes is a new hdmi cable.