External USB-C monitor is not working after update to Ventura

Hi, my m1 Mac Pro can't see any more the external monitor (LG 32UN880) and is not charging too. I am using USB-C cable.

Tried to reboot in Safe Mode, but it didn't solve the issue.

Everything was working fine on Monterey.

MacBook Pro

Posted on Oct 25, 2022 9:42 AM

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4 replies

a brody

Level 10

85,502 points

Oct 25, 2022 9:45 AM in response to granshuniek

Monitors are usually not USB-C except for adding peripherals that are USB-C. Monitor ports that connect USB-C to the computer use thunderbolt-3 or 4 cables which have a lightning bolt on their connector to indicate they aren't just USB-C. If missing such a cable, order some from http://www.macsales.com/ as those handle power for monitors much better.

a brody

Level 10

85,502 points

Oct 25, 2022 10:08 AM in response to granshuniek

I would attempt to reset the PRAM.

granshuniek Author

Level 1

8 points

Oct 25, 2022 9:55 AM in response to a brody

Sorry, my bad, I am using thunderbolt cable. As I said, I was using this setup on Monterey and Mac has no issues with monitor, it started after upgrading to Ventura...

granshuniek Author

Level 1

8 points

Oct 25, 2022 11:41 AM in response to a brody

I am afraid it's not available on M1 MB Pro

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External USB-C monitor is not working after update to Ventura