schmorrisonOk, removing the USB-C cable ended up forgetting my progress.
Ok I seem to have gotten it working by following this procedure (v023):
The instructions do not work exactly as described, and the HubPDFWUpgrade software could not identify the display. Instead I did:
- Plug in USB-C to Thunderbolt port and to the Proart display
- Plug in Display Port cable between computer and display also, I used the USB-C -> Display Port adapter mentioned in OP.
- Prepare USB storage device as described (FAT32 and bin at root)
- Plug USB storage device to USB port 3 on the Pro Art display
- Turn on display
- Switch AC to OFF position
- Long Press power button
- Switch AC to ON position
- When indicator light comes on and display begins boot animation, let go of power button.
- The display should now be connected to USB-C, change the input device to USB-C
- Remove other Display Port cable that was installed in step 2.
Thanks for the reply, and sorry for the delay (the site was under maintenance).
I can get both of them to throw the USB BILLBOARD device but am not entirely clear on how to interpret or diagnose it.
I can also get the HubPDFWUpgrade application to display the hub information, however that connection doesn't persist.
I have been considering purchasing an authentic thunderbolt 4 cable, however I didn't want to invest in one until I got a word back from the forum. It occurs to be that maybe the TB4 hardware is failing to validate the hub because PD is too low to charge the laptop (a warning Windows 11 nags me with most time I plug in the monitor via USB-C) and it is confusing windows 11.