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.
Mac to hdmi cable not working.
Connects directly to hdmi using an hdmi cable.
Learn how to identify the ports on your mac.
Usb c or thunderbolt 3 usb c port.
This works in most cases where the issue is originated due to a system corruption.
However the hdmi was not working at all.
2 try a different hdmi port on the tv.
Also i have my amazon firetv connected via hdmi with no issue.
1 try a different hdmi cable.
Mac computers that have any of the following ports can connect to hdmi devices.
Connects to hdmi using a third party mini displayport to hdmi.
I expected a grandiose welcome of a fine hp display.
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.
It was working fine for so long with the same tv with no issue.
I took out my hdmi cable plugged in the usb c and the external monitor.
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.
But still when i connect the macbook pro the laptop see the tv but the tv show no signale.
Connects to hdmi using an adapter such as the apple usb c digital av multiport adapter.
In the case that your hdmi cable is damaged replacing it with a new one should resolve the issue.
Try to use a different cable to connect your mac to your display if possible.
For example you can use a usb c to hdmi cable for some mac models.
I was using a working macbook pro with catalina as the latest os.
Use a different port.