Top USB/Thunderbolt ports not working
My Mac Pro 7,1 (2019) two top Thunderbolt ports do not work as either USB or Thunderbolt. They can however charge devices.
My Pro XDR Display doesn’t work when plugged into the top ports, it only works with Apple I/O card.
The system inspector only shows 1 Thunderbolt Bus
I reset the NVRAM and SMC to no effect.
Does anyone have any ideas what the issue could be?