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- Switched HDMI cables and now TV says No Signal. Cable works ...

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11-09-2023 10:05 AM
I recently purchased a new 15 ft 4K HDMI cable to connect my laptop to my TV. The previous setup (10ft) worked fine. When I attached the new cable, the TV says No Signal. The external monitor is detected on the laptop, but I don't seem to be able to do anything in the Display section of the Settings app.
I have tested the same new cable with my older MAC, and it works fine.
Any thoughts? Things to try?
Thanks!!
Tom
11-09-2023 01:26 PM
Did you know the length for 4K HDMI is limit to 10Ft or 3meters ? 15Ft simply won't work on your machine. You Mac machine may have different version of HDMI port.
Regards.
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