MacBook Pro detects projector but projector says “no signal”

I know this has been asked before but nothing seems to work. I connect my 2020 MacBook Pro to a projector (different brands), the computer recognizes it, changes resolution, but the projector says “no signal”. It’s independent of the adapter (Apple, third party). Any tips?


thanks


Ed

MacBook Pro 16″, macOS 14.5

Posted on Aug 5, 2024 2:51 PM

Reply
3 replies

Aug 5, 2024 7:59 PM in response to ecastron

HDMI cables you want for HDMI-only Displays (higher resolutions than 720p TV sets) are marked as Certified with an anti-counterfeiting tag and are labeled:


"Premium High Speed HDMI cable" or that + "with Ethernet" --OR--

"Ultra High Speed HDMI cable" or that + "48G"


Cables with No Certification tags are good for your standard 720p TV set, and not much more.


HDMI was invented for HD TV sets. it works great at its original resolution of 720i or 720p. At higher resolutions, it quickly develops issues that are complex to solve, and the cables and adapters required to solve are NOT intuitive.

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MacBook Pro detects projector but projector says “no signal”

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