I bought this cable (4K Fiber Optic HDMI Cable 75FT Long, Unidirectional 2.0 High-Speed HDMI Braided Cord).
I have tried connecting it to an iMac and MacBook Pro using a USB-C to HDMI adapter. There is absolutely no signal going to the projector. I plugged the same cable into a PC with an HDMI port and it works perfectly. What heck Apple?
MacBook Pro 13″, macOS 11.7
archiefromhowe wrote:
I bought this cable (4K Fiber Optic HDMI Cable 75FT Long, Unidirectional 2.0 High-Speed HDMI Braided Cord).
I wonder if this is the problem.
The Mac might be expecting the ability to hear back from the monitor – to identify the monitor and its capabilities. Obviously that isn't going to happen if the connection is unidirectional.
Even if the Mac was willing to put up with a unidirectional connection, you could plug the cable in backwards with the "source" plug plugged into the monitor, and the "display" plug plugged into the computer. Then nothing that the computer tried to send to the display would reach the display – the cable's "display" end would drop the data on the floor.
I have been using Apple TV, but it does not work well when wifi is not working. Thanks
75' long hdmi cable will not work on iMac or MacBook Pro
