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HDMI External Display Not Detected After Ventura Update

I use my MacBook to connect to the projector for teaching. I updated to Ventura and now the HDMI is no longer detected. After a tiny bit of research, I saw that this has been a problem since beta. I wasn't able to use my Keynote for the any of the lessons today. Absolute failure. Does anyone know what the issue is? Is there a fix? It's always been plug and play until this morning. MacBook Pro 14-inch with M1 Pro

MacBook Pro

Posted on Oct 25, 2022 3:55 AM

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Question marked as Top-ranking reply

Posted on Oct 25, 2022 4:13 AM

USB-C to HDMI adapters are notroriously underpowered in many instances.


If you have a USB-C power adapter, then power the USB-C hub using the computer's own power. If your hub does not have a USB-C passthrough port, be sure to get one with 100W pass through. The company I worked with that had 600 Macs depended on these adapters for reliability.


https://www.smklink.com/products/usb-c-multi-port-hub

https://www.siig.com/search/JU-DK0F11-S1


Do not buy HDMI cables from Insignia, as they are not designed to spec. Belkin cables are typically a lot better.

5 replies
Question marked as Top-ranking reply

Oct 25, 2022 4:13 AM in response to One3Five7Nine

USB-C to HDMI adapters are notroriously underpowered in many instances.


If you have a USB-C power adapter, then power the USB-C hub using the computer's own power. If your hub does not have a USB-C passthrough port, be sure to get one with 100W pass through. The company I worked with that had 600 Macs depended on these adapters for reliability.


https://www.smklink.com/products/usb-c-multi-port-hub

https://www.siig.com/search/JU-DK0F11-S1


Do not buy HDMI cables from Insignia, as they are not designed to spec. Belkin cables are typically a lot better.

HDMI External Display Not Detected After Ventura Update

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