MacBook Pro M4 with thunderbolt 5 and portable monitor

I’m not sure this is Apple’s issue to fix since this is an incompatibility of the monitor with Thunderbolt 5. It's generally a manufacturer's responsibility to release firmware updates to make their products compatible.

The only way the onus would be on Apple to correct anything would be if their implementation of TB5 were somehow faulty — which absolutely could be the case; I just personally don't think it's that likely.

Edit: Unfortunately I also get the impression that Arzopa is the kind of company that won’t bother releasing those firmware updates and instead will release a new product with the updated firmware included instead. (Also added a paragraph break)

So after some further testing, for my external monitors, the UPerfect z14, it did not matter what ports on my Mac I used however, I switched the ones on the monitors I use and it seems if I use the same ones that are in line, one monitor does not get the required power. When I rolled the ports on the monitors that the cable is plugged into the other monitor powered on no issue. Again, I was having the same issues as shown in the first picture but it has now resolved without using a power source and HDMI mini.

Same issue -- went from an M1 MacBook Pro to M4 and now the monitor won't detect a signal from the M4 MBP. I've seen lots of work-arounds including powering the monitor, then connecting to the MBP but that's ridiculous. It should just work with a single (correct) USB-C connection.

All of the M4 MBP 16-in configurations on Apple's Online Store show three TB5 ports in the configuration. All of the M4 MBP 14-in configurations show three TB4 ports.

Bumping this. Still facing the issue on the Arzopa Z1RC - quite frustrating. Please keep reporting this to Apple guys. Product Feedback - Apple

I will say though USB4 =/= Thunderbolt 4.

Speed for the USB ports should read 120Gbps. That's confirmation it is TB5; TB4 is only 40Gbps

Edited: Marked out device ids just in case.

well, there is this presentation in "system report":

...

Thunderbolt cables and USB-C cables should not be confused. They may look alike, but thunderbolt has more bandwidth and support for video than straight USB-C.

From your description, those should be TB5. Sure you didn't actually look at the M3 models?

Positive. The Apple Store staff was baffled. They had no answer. We looked at all of their M4 Pro and Max machines. All hardware profiles said Thunderbolt 4.

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Same issue for me. Which USBC display hub are you using? Is there a super small portable version that doesn't require power adaptor to be plugged in?