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Old 08-19-2021, 04:25 PM   #1
rarellan
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Join Date: Aug 2021
Posts: 1
Default Dock - Lenovo ThinkPad Thunderbolt 3 Gen 2 Dock on M1

MacBook Pro M1 (Big Sur 11.5)
Dock - Lenovo ThinkPad Thunderbolt 3 Gen 2 Dock
Monitors - 2x LG 4k monitors
Display Manager 1.5 Beta (no monitor detected)

I'm experiencing a strange issue with the 2 monitors mirroring each other. I checked display settings and confirmed that mirroring is off. The MacBook is only seeing one external monitor despite the two monitors showing the same desktop.

I have the MacBook connected to the Thunderbolt 3 dock. The Thunderbolt 3 dock is then connected to both monitors using DisplayPort.

Has anybody experienced this and found a way around it?
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