théo241 Said:
"Who will help me to use my Epson projector that's connected with a cdmi converter to my MacBook?: I do have that adapter attached to my HDMI cable, but it doesn't work. While the HDMI cable attached to another laptop ( not a MacBook) does work!"
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Thank you for the followup. What to try:
Reset the SMC and your NVRAM:
(Applies to Intel-based Macs only)What it could be is the power management settings. Sometimes when changes are made to the system(i.e. updates), system configurations (i.e. for or Power) become manipulated, technically. So, reset the SMC and NVRAM. Your power adapter may not be being seen promptly by the ports. It may take up to 3 tries each.