Update on behavior: the last few times the internal display went black, I did not touch the keyboard and mouse at all, and the display came back after a few seconds. (Tested with the laptop in the port replicator and an external display connected via the DP port.)
Update on behavior: the last few times the internal display went black, I did not touch the keyboard and mouse at all, and the display came back after a few seconds. (Tested with the laptop in the port replicator and an external display connected via the DP port.)