I have a Macbook Pro 16", M1 running Ventura. I want to connect 3 external monitors. I have 3 Dell 27" Ultra monitors. Two are working beautifully. But the third states it is not receiving a signal from the device. I've tried USB-C and HDMI cables. No luck. Help!
MacBook Pro 16″, macOS 13.0
MacBook Pro 14- and 16-inch - Technical Specifications - Apple
Up to two external displays with up to 6K resolution at 60Hz at over a billion colors (M1 Pro) or
Up to three external displays with up to 6K resolution and one external display with up to 4K resolution at 60Hz at over a billion colors (M1 Max)
Check the specifications for those monitors to determine how many you can use and at what resolution.
Use an external display with your MacBook Pro - Apple Support
MacBook Pro 14- and 16-inch - Technical Specifications - Apple
Up to two external displays with up to 6K resolution at 60Hz at over a billion colors (M1 Pro) or
Up to three external displays with up to 6K resolution and one external display with up to 4K resolution at 60Hz at over a billion colors (M1 Max)
Check the specifications for those monitors to determine how many you can use and at what resolution.
Use an external display with your MacBook Pro - Apple Support
I don't know why it's not working. It could very well be a bug in macOS that prevents using three of those monitors, despite what the specifications say. I'd contact Apple and see what they have to suggest: Get Support. From everything I read they should work as you expect.
Thank you. The displays are each 4k at 60Hz. I've tried reduced the Hz to 30 for each of the two that are working. Still no luck.
Thank you. From what I've read, I agree that is a possibility.
Macbook Pro 16" M1 Ventura 3 Monitors
