HDMI displayport through USB C adapter doesn't work on Ventura OS for 13" MBP 2020 (Intel based)

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HDMI displayport through USB C adapter doesn't work on Ventura OS for 13" MBP 2020 (Intel based)

My office setup using MBP has always been connected to 2nd monitor via HDMI through Anker USB C adapter (self powered) since I bought it, suddenly it stopped working after Ventura upgrade. The same configuration connected to my wife's MBP which is still on Monterey 12.4 and it's working fine. WHY? is there a way around to get it to work? I have invested so much, in fact, I have bought a brand new USB-C Digital AV Multiport Adapter from Apple store and it still not working!!

MacBook Pro 13″, macOS 10.13

Posted on Dec 20, 2022 12:02 AM

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Answer 1

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hafizrafar Author

Level 1

13 points

Dec 20, 2022 06:32 AM in response to Barney-15E

Thanks Barney! I thought if Apple OEM products didn't work on apple products, what does?.. It was definitely something was not right on the OS side itself. Especially both adapters don't work on mine but work fine on my wife's MBP. Also, USB-A works fine on both adapters. It looks like a technical issue with the HDMI displayport somehow has been disabled since the upgrade. It surprises me when I check the serial number in 'tech spec' under 'video support' it is written like this.

Thunderbolt 3 digital video output

Native DisplayPort output over USB‑C
VGA, HDMI, DVI, and Thunderbolt 2 output supported using adapters (sold separately)

To me since it didn't mention a specific adapter it means any USB C to HDMI adapter should work. Regardless, the fact I bought the OEM from Apple store cost 90 dollars, that doesn't work, blows my mind!

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Answer 2

Barney-15E

Level 10

121,238 points

Dec 20, 2022 02:50 AM in response to hafizrafar

There are others reporting problems with some adapters. I have one from Vava that works fine on Ventura. Based on the fact that adapters work for some may indicate something else is at play. I don’t know what that would be, though. Possibly the display.

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Answer 3

Barney-15E

Level 10

121,238 points

Dec 20, 2022 08:49 PM in response to hafizrafar

The problem is you need a Thunderbolt or DisplayPort to HDMI that has a USB-C end.

USB-C to HDMI doesn’t really mean anything as video isn’t sent over USB. USB-C is just the shape of the port.

There are devices that can send/receive video over USB. Apple doesn’t do that. The Apple adapter should work,

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Answer 4

smcca945

Level 1

14 points

Dec 20, 2022 10:30 PM in response to hafizrafar

Have you tried going to the displaylink website and re-installing the displaylink drivers? All adapters (95%) of them run on Displaylink chips and sometimes the upgrades corrupt the Displaylink drivers. Download the latest Displaylink drivers and install and it should fix it.

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Answer 5

Owl-53

Level 10

100,117 points

Dec 21, 2022 04:37 AM in response to hafizrafar

This specific question was asked earlier ( yesterday )and was Taken Down by the Moderators for some reason.

I know because I was part of that very question.

The OEM Multiport Adapter from Apple worked on an Intel Retina MBA running Venture 13.1 and that very same OEM Adapter was used on M1 MBA machine.

The Video and Sound Output to an HD Samsung TV via HDMI worked .

It also worked on both machines to a Asus Display using the same HDMI cable used to the TV.

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Answer 6

hafizrafar Author

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13 points

Dec 22, 2022 04:06 AM in response to Owl-53

I am at my friend's house he has a Samsung HD TV which I'd like to connect to USB C decided not to work on me today. I got here this morning, boot-up and waited 2 hours later - normally the adapter appears after several 'sleeps'. Couldn't see the adapter, how am I going to connect without the adapter. What a piece of overpriced junk!

[Edited by Moderator]

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Answer 7

hafizrafar Author

Level 1

13 points

Dec 22, 2022 01:19 AM in response to hafizrafar

After several reboots, the adapter is working. My thumb drive and wireless mouse are working fine. Unfortunately, HDMI still has no sign of being detected. So I have tried three monitors so far and I concluded a Display connection using HDMI over USB C adapter is not possible.

One last option I would like to try is using a USB C to HDMI cable (Well I have to buy it first), if that doesn't work I'll chuck the MBP in a trashbin and so goes with the rest of my confidence in apple product!

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Answer 8

Barney-15E

Level 10

121,238 points

Dec 22, 2022 05:18 AM in response to hafizrafar

On another thread, someone found that they had to turn off USB on the display’s on screen display so that it wouldn’t try to get USB video through the USB-C port. I doubt that affects the HDMI port, though.

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