Hey everyone,
is anybody able to connect two external monitors to the M3 MacBook Pro?
I heard in March that after the M3 Air support for 2 monitors apple will be update this function to M3 MacBook Pro as well. However here I am in July macOS Sonoma 14.5 and still only one monitor (with closed hatch) working :(
Does anybody has more information regarding this topic?
Thank you!
MacBook Pro 14″
What's new in the updates for macOS Sonoma - Apple Support
"macOS Sonoma 14.6
This update adds support for using up to two external displays when the laptop lid is closed on 14-inch MacBook Pro with M3 chip and also provides important bug fixes and security updates."
About the security content of macOS Sonoma 14.6 - Apple Support
Indicates that Apple released the 14.6 update just two days ago, on July 29, 2024.
How many displays can be connected to MacBook Pro - Apple Support
Use dual monitors with your MacBook Air and MacBook Pro with M3 chip - Apple Support
These Support articles have been updated.
What's new in the updates for macOS Sonoma - Apple Support
"macOS Sonoma 14.6
This update adds support for using up to two external displays when the laptop lid is closed on 14-inch MacBook Pro with M3 chip and also provides important bug fixes and security updates."
About the security content of macOS Sonoma 14.6 - Apple Support
Indicates that Apple released the 14.6 update just two days ago, on July 29, 2024.
How many displays can be connected to MacBook Pro - Apple Support
Use dual monitors with your MacBook Air and MacBook Pro with M3 chip - Apple Support
These Support articles have been updated.
Apple has not announced a date or time frame for when the update will be available. So a MacBook Pro with a base M3 chip remains limited to one external monitor.
Even after the update comes out (assuming that it does), a MacBook Air or Pro with a base M3 chip will not support two external monitors as well as MacBook Pros with M3 Pro and M3 Max chips already support them today.
The Technical Specifications for the M3 MacBook Pro have not been updated. They still refer to a limit of a single external display. I assume that in this case, the Sonoma release notes and newer Support documents govern.
There is also an inconsistency regarding the maximum supported refresh rate if you have a single display that you have connected using HDMI.
I suspect that the 144 Hz answer is the "correct" one, given that it's from the most-recently-updated document. Whether you need to be running Sonoma 14.6 (or later) to get the 144 Hz support, I don't know.
another specification is in this HDMI article, updated 25 March 2024:
Connect to HDMI from your Mac - Apple Support
the movie version:
the very highest HDMI 2.1 specs are now specified to require a PRO or MAX processor. All others are relegated to no better than 4K at 60 max.
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MacBook Pro M3 Support for two external monitors
