Ventura 13.2.1 update fails to recognize external display

Same here, on 13.2.1. Did all the troubleshooting mentioned above.

I've got a display on HDMI and another on USB-C through a Belkin TB4 dock which used to work perfectly for a long time until today.

Even directly connecting either monitors to my Macbook Pro 14 does not "trigger" wake on both monitors.

Would appreciate an escalation to Apple if anyone has a line in

I’ve tried the command + F2 and did not work for me. Also tried new adapter…this worked for a bit and now started doing the same. Im unable to roll back my work machine (Ventura is required for security), but again my older personal Mac on Monterey is fine.

Any other things to try? It’s really challenging working like this. 😢

Same for me - after the night update to Ventura 13.3.1 external display just hasn't recognizing. But worked ok on previous day on previous macOS version.

And with the same adapter it works properly on my wife's mac with previous Ventura 13.1 :(

All of the recommendations from this thread do not solve the issue. Will try to use the another adapter, but looks like other users tried and it was unsuccessful.

I'm having the same issue.

MacBook Pro Apple M1 Max, Ventura 13.3.1.

I also noticed in the System Information that the status of all 3 of the Thunderbolt/USB 4 ports was 'No device connected' even though, in addition to my monitor, I have an Icy Box and Apple watch connected to the other two.

Under USB the system can see the USB 3 devices I have connected through the Icy Box and it can also see the Wacom tablet I have connected through the USB 3 port in my monitor. My Mac is also still getting power from my monitor as well.

Needs fixing ASAP.

Thanks

Similar issue happening when upgraded to Ventura. Fortunately my two work monitors work, but when I try connect to our boardroom display it doesn't work. Was working with previous OS. I have tried the suggestions above with no success too.

so, I have got an issue after the OS update to Ventura 13.3.1 - the external display don't respond while it connected using this splitter on my MacBook Pro M2 2022.

Same splitter (hub) works correctly with the same external display on another MacBook Air 2022 that run on Ventura version 13.0.1.

So I connected another splitter (hub) of the same model - and it works properly with the same external display on my MacBook Pro M2 2022 with OS Ventura 13.3.1

Same problem. Can’t use thunderbolt for display anymore. Pathetic. Using Apple cable. Updated and now doesn’t detect the display. It’s connect through a dock and other peripherals are still detected. If he can see this, Jobs must be losing his marbles at how far Apple has plummeted in basic functions.

This worked for awhile. Now it does not work!! It’s driving me crazy and rendering it challenging to work ergonomically on my laptop screen alone.

I don’t get it?!? My old personal laptop with Catalina works fine. The bug definitely has something to do with Ventura 13.3.1

Exact same challenges. Only works for awhile then not. Last week I spent a good 5 hours over two days. Exasperated, I gave up. Walk into my home office on Saturday (about to head to Apple for a 3rd adapter) and it was working! Could not believe it. Worked all weekend and yesterday.

I’ve now disconnected to head to the office and worry I’ll be dealing with this same issue when I work at home later this week.

I hear you - same here. I have been using the TB displays for years working flawlessly and suddenly all quit.

All you hear from Apple is to check if your Mac is "compatible"... how dumb do they think I am... sitting in front of them since the good old Performa and Quadra times...

Hi @layoutdeluxe,

did this solution work?

Do you have access to the other functions in the display like the camera, speakers and usb ports?

Do you have the link to the older thread?

It was working perfectly until I upgraded the Mac to Venura (13.4).

Is this planned obsolescence on Apples part? If it was working fine with an older OS until last week when the machine was updated from Monetary (or as others have pointed out an older version of Ventura), what is the reason to hobble the thunderbolt display now?

I have the same issue, apple support is of no help.

Had the monitor working once, then it no longer got detected again, it's so frustrating. apple support isn't even paying attention to what I'm saying, I basically needed to reiterate everything I just said, it's like talking to a re***** person or a very weak bot.

I have some tips to fixed os ventura 13.2.xx issues which difficult to detect an external monitor (macbookpro 2017 case)

1. Your macbook must be on shutdown position.

2. Unplug your hdmi dongle before you start to turn on your macbook

3. When apple logo displayed plug-in your hdmi dongle to your macbook

4. After login landingpage displayed. Turn on your external monitor. And then you must login rapidly before your monitor on standbye mode (inmycase). Btw i'm using samsung sr35 monitor with hdmi cable.

5. If you have been passed with all the steps above

6. Enjoy.

note : i think we can try on restart position. Because maybe my external monitor triggered by login landing page.

Thankyou :)

I have this issue intermittently. Mac would not recognize the external displays some times If I unplug the mac from docking station and plug back in. I had to restart to get it recognized. Finally I found a solution. The display link manager is responsible. It needs to be launched. Even though it does get launched on restart, for some one reason it stops if unplug from docking station. So I had to open display link manager again, some times more than once to get the other monitors recognized.

Launch Pad -> Display Link Manager - ensure launch on start up.

Try opening the the display link manager multiple times if monitors not recognized.

Also:

• Firmware 26.2, Port Micro Firmware 2.0.7
• Using Thunderbolt 3 to Thunderbolt 2 Adapter (I don't need this for the 2012 MacBook Pro above)