If you ever noticed when plugged into a classroom system during video playback issues such as:
- Video pauses and jumps ahead
- or video will not load.
but it will work just fine when the HDMI cable is unplugged.
This is a known problem for Macbooks with an M series processor. To fix the issue, perform the following procedure.
- Plug Macbook into the room system and confirm video connection
- Reboot computer.
Afterward the video should play back correctly.