Use a different port.
Mac to hdmi cable not working.
Connects to hdmi using a third party mini displayport to hdmi.
But still when i connect the macbook pro the laptop see the tv but the tv show no signale.
However the hdmi was not working at all.
This works in most cases where the issue is originated due to a system corruption.
Hdmi sound not working mac if the issue is with your computer or a laptop you should try using restoro which can scan the repositories and replace corrupt and missing files.
Learn how to identify the ports on your mac.
Mac computers that have any of the following ports can connect to hdmi devices.
Connects to hdmi using an adapter such as the apple usb c digital av multiport adapter.
I was using a working macbook pro with catalina as the latest os.
If you have an hdr enabled device such as a uhd blu ray player or streaming device connected to an hdr compatible tv it s possible that the tv is not recognizing the hdr encoded content.
2 try a different hdmi port on the tv.
I took out my hdmi cable plugged in the usb c and the external monitor.
For example you can use a usb c to hdmi cable for some mac models.
I expected a grandiose welcome of a fine hp display.
Also i have my amazon firetv connected via hdmi with no issue.
Try to use a different cable to connect your mac to your display if possible.
Use a different hdmi cable.
Connects directly to hdmi using an hdmi cable.
1 try a different hdmi cable.
If you haven t already swap out your hdmi cable for a hi speed hdmi cable with a speeds of at least 10 2 gbps but preferably 18 gbps.
Usb c or thunderbolt 3 usb c port.
Unfortunately hdmi was totally dead.