Ventura 13.0.1 update results in USB-C monitor no longer being detected

For all here strugling with same issue. I tried all software solutions adviced here and on other forums. I also tried to switch dongles, etc. Nothing worked for 2 weeks.

Then i remembered i also use HDMI switch (low cost) - even if i have enabled untrusted accessories in settings - it is not working due to it for some reason.

After disconnecting and connecting my usb-c hub directly via HDMI to monitor it works like a charm.

Hope this will be fixed soon. Since I need to switch HDMI input from linux to mac time to time.

I tried everything suggested here: removing ~/Library/Preferences/ByHost/com.apple.windowserver.display.{XXX}.plist, then restarting; plugging and replugging the monitor. Only thing that seems to work is using a newer adapter, so it's back to the neverending cycle of hardware obsolescence, thanks Apple.

I tested the suggestion of "rebooting" the monitor by removing and disconnecting it from power while the Macbook was connected, and it worked! As soon as I plugged in the monitor (LG Ergo 32) again, it detected a USC-C device connected to it (my Macbook Pro).

I contacted apple support, they gave me the solution: removing the file of ~/Library/Preferences/ByHost/com.apple.windowserver.display.{XXX}.plist, then restart

Same problem with my M1 Mac mini upgrading from Monterey to Ventura 13.1, using a 32" 4K LG ergonomic display via USB-C. Monitor works with HDMI connection only. Disconnecting and reconnecting the USB-C cable didn't help.

However disconnecting and reconnecting the power cable of the monitor then reconnecting to the Mac via USB-C seems to solve the problem.

On my iMac, Retina 5K, 27-inch, 2019 I solved the issue doing the following:

1. Deleting the file com.apple.windowserver.[...].plist in ~/Library/Preferences/ByHost
2. Shutting down the iMac
3. Unplugging all (!) cables from my Apple LED Cinema Display
4. Unplugging all (!) cables from my iMac and waiting 15+ Seconds (that does an → SMC reset, btw.)
5. Replug everything: display power, DP-connection to iMac, USB-connection to iMac, iMac power
6. Perform a → NVRAM reset as explained here: https://iboysoft.com/wiki/nvram.html
7. Boot macOS Ventura 13.1 (22C65)

And voila - everything works again! 😍

I got the same issue as well. But I fixed the issue by simply resetting my LG 4K 32-inch monitor to the initial setting. Hope mine solution will help.

Switching cable to right side on MacBook M1 Pro fixed the issue.

with ur mention about charging/battery i have go to battery>options and changed automatic switch graphic adapter and external monitor woke up

Sounds almost ridiculous, but perhaps worth a try! Even though USB-C can be plugged in either right-side-up or upside-down, you can try flipping the usb-c plug. In my case, I was using a usb-c extension cable from my usb-c hub to my 2018 Macbook Air (also, I do not have the "Allow accessories to connect" option at all). I flipped the female USB-C plug and now my usb-C hub works again!

This is where I found the solution that worked for me. I can confirm and vouch that the following worked for me. Wired usb keyboard and mouse stopped work… - Apple Community

 menu > About this Mac > (System report)

look for the adapter, the display, and the connected USB-A device.

I bought my Samsung Curved Monitor with USB C charging included 2 yrs ago and I have been using My M1 MacBook Pro 2020 and I have never encountered any issue until I updated my laptop to Ventura. Ever since then, the charging wont work properly, keeps disconnecting. Sometimes its fine, sometimes it just keeps disconnecting and finally fixes its self.

I also got a new M2 pro Macbook Pro 14 2 weeks ago and I am having the same issue, it's clearly the software. I plugged in an older device (not Ventura) and works with no issue.

Watch my video below

https://youtu.be/Zzjsh19Dbk4

Apple please release an update to fix this!

Having the same issues on my MacBook Pro 2019 after updating to Ventura 13.0.1.

I tried to remove ~/Library/Preferences/ByHost/com.apple.windowserver.display.{XXX}.plist and restart, but this does not work.