PS5 HDMI Port Not Working? Here's How To Fix It
You can try switching to a different HDMI port to see if that resolves the issue ... and go to Screen and Video > Video ...
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Turn any USB-C port into HDMI with this cheap $12 adapter
If you want an easy way to connect your laptop, phone, or tablet to your TV or an external monitor, this Anker USB-C-to-HDMI adapter is a great solution, especially now that it’s only $12 on Amazon.