Here’s a photo of his setup.Īs other commenters indicated, using DisplayLink with adapters - already familiar as a workaround for m1 MacBooks - can increase the number of possible external displays. When the commenter above says “3 monitors just isn’t possible” with the 14-inch M1 Pro MacBook, he means natively. I’m personally fine with a two (three if you count the internal display) setup, but at least this should shed some real life insight into how external monitors work on the M1 Pro. I would say that it’s safe to assume that 3 monitors just isn’t possible and could be a limitation of the Display engine on the M1 Pros. Lastly I connected the TS3 dock AFTER connecting the HDMI monitor and only the 34” monitor booted up, the 27” did nothing. Next, I disconnected the TS3 dock and just connected the 27” 1080p via HDMI. I then added via the HDMI port the 1080p 27” spare and it didn’t turn on, it did however identify the power and act like it was going to connect, but no dice. The 34” LG ran at 144hz as the highest value The 27” Dell 1440p ran at 85Hz as the highest value It’s old and more of a “workstation” monitorįirstly I tried just connecting the TS3 dock to the left side TS3 port with the dual monitors: I have a 3rd spare Dell 1080p 60hz 27” monitor that only has HDMI output.

The first monitor is a Dell 1440p 144hz gaming monitor, the other is an LG Ultragear 34” Ultrawide, 1440p 144hz. I have two monitors connected to a CalDigit TS3 dock, one from HDMI to USB-C and the other with HDMI to DP I have a 14″ M1 Pro and I just tested it, here are some results: The following in-depth description of real-world experimentation with a MacBook identical to HerrAusragend’s illustrates it: Part of the confusion people suffer owes to the fact that there’s more than one way to set up external monitors.

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