How to reset hdmi port on tv?

"Resetting" an HDMI port on a TV usually means troubleshooting when there's no signal or a poor connection. It's not a literal reset button but a series of steps to re-establish communication. Here's the universal fix order: 1) Power Cycle Everything: Turn off the TV and the device (cable box game console etc.). Unplug both from the wall power for 2 full minutes. This clears any electrical charge and resets the HDMI handshake. 2) Check Cables and Ports: Try a different HDMI cable if possible. Try plugging the device into a different HDMI port on the TV. 3) TV Settings: On your TV remote there's often an "Input" or "Source" button. Manually select the correct HDMI port. Some TVs have an option to "Refresh" or "Re-detect" inputs in the settings menu (look under External Inputs or General).

4) Device Settings: On the source device (like a PlayStation) check its display output settings and ensure it matches your TV's capability (e.g. 1080p vs 4K). Sometimes lowering the resolution can force a re-handshake. 5) Factory Reset (Last Resort): If one specific port is dead but others work it might be a hardware failure. As a last resort you can perform a factory reset on the TV (Settings > System > Reset) but this will erase all your apps and settings. A helpful guide for specific brands can be found on Sony's support site but the steps are similar for most brands.

I fix AV equipment. The #1 fix for HDMI issues is the full power cycle (unplug TV AND device). So many "dead ports" are just a failed handshake where the TV and device got confused about what resolution/format to use. Leaving them unplugged drains the capacitors and forces a fresh start.

Another trick: With everything on and connected go to your TV's settings and find the option to turn off any "HDMI-CEC" or "Consumer Electronics Control" (names vary: Samsung's Anynet+ Sony's Bravia Sync LG's SimpLink). Turn it OFF power cycle then turn it back ON. CEC can cause all sorts of weird handshake issues. Also if you're using an HDMI switch or soundbar bypass it and connect directly to the TV to rule out problems with the intermediate device. If one port is truly broken you're looking at a repair but that's rare.