We've noticed that there might be an issue with the Apple USB Type C Multiport adapters. Users with one of these adapters and an external display have experienced interruptions to the external display (i.e., black outs) that last for a second or two. These can occur in several series of black outs or just one. Happens for a few seconds then doesn't occur again for a while. Notable that the main laptop display does not sleep/black out.
We don't have many of the other adapters to test substitutes and obviously no Type C monitors are readily available. Testing with other types of dongles/adapters will help tremendously.
