Ventura breaks monitor detection?

Same I did that, didn't work due to security reasons which I strongly suspect was configured in T2 chip during the Ventura upgrade. Even if you managed to downgrade to Monterey (which I doubt you can), it wouldn't be able to undo the security anymore.

I have the same problem, Ventura 13.1 killed my displays. everything was working fine, then nothing..... I use a Dell (certified by Apple) thunderbolt dock (WD22TB4). Everything else on the dock works, but not the displays. Even if I move the displays from the dock to the USB-C ports on the mac they still wont work. I'm using a 16" M1 MBP. I contact Apple and they even had the nerve to blame the third paerty vendor. "nothing we can do until they update their firmware".... So Apple, you broke a $600 dollar certified by you product.... and kiled my work environment... nice.

I was told I was lying that they had not heard of this. I’m like google it! Them my comments keep being removed from here as I’m speculating and starting rumors!! I talked with 7 different people at apple in one day and all they could say was that I’m wrong!!

I'm running one DP from the dock and one HDMI direct from macbook to a monitor. The dock as dual DP but not supported for macbooks. If I also run HDMI from the dock it only mirrors DP and does not work seperate, so it must be an internal limitation of the dock.

Same with me, I have 2 macbook pro. 1 M1 and 1 Intel, both just upgraded to ventura 13.1 and now my monitor fails to detect clamshell mode. I have to unplug the usb-c -> displayport and plug back into my intel book for the monitor to work again.

Im using the samsung 34inch ultrawide curve that allows split screen so I can use usb-c/displayport. M1 works fine in clamshell but my intel have problems when i close the laptop.

One question, when you say usb-c -> displayport. Is that means you are using usb-c to displayport cable? (shown in the link below).

https://www.amazon.com/Cable-Matters-DisplayPort-USB-C-Supporting/dp/B01J6DT070

Same here. After I upgraded to 13.1, my type-c to DP cable disconnected from the external monitor every time my external monitor turned off. I have to replug the cable to reconnect my monitor. CANNOT believe Apple hasn't fixed this after 3 months.

Updated to Ventura on my MacBook Pro and I lost my HDMI screen. It is not detected.

Same here! Tried different cables too. It started after a standard restart… Literally working, then not working 😔

Unfortunately, this is very typical for Apple :) ... and is also very sad...

M1 Pro, used to worked just fine. Now I have to reboot it every morning to be able to detect the docking station. What an UPGRADE! Smh.

Apple just ain’t what it used to be. Update disables usb-c to hdmi output .. rookie engineers pushing updates way too soon.

same here

My mac did an auto update and i'm in the exact same situation