The laptop lid must be closed
Apple is planning a software update that will add dual-display support to the 14-inch MacBook Pro with the M3 chip, as reported by 9to5Mac.
The MacBook Air models introduced yesterday support up to two external displays with a 5K resolution — a feature that is currently not available on the 14-inch MacBook Pro with the same M3 chip.
Since the two laptops use the same M3 chip, it's unclear why the MacBook Air has this feature and the MacBook Pro doesn't, but Apple promises to fix the issue. Both the MacBook Air and MacBook Pro support a single external display up to 6K at 60Hz when the laptop's lid is open, and with the update, the 14-inch MacBook Pro with the M3 chip will also support two external 5K displays at up to 60Hz when the lid is closed. lid.
More expensive MacBook Pro models with the M3 Pro and M3 Max chips already support multiple displays, so this change only applies to the 14-inch MacBook Pro with the M3 chip.