Second External monitor not working after update Sonoma 14.6.1.
I have two Samsung Monitors M7 & M8, both connected to the Thunderbolt ports
The M8 stop working using Thunderbolt Port. Using HDMI still work.
Mac mini, macOS 14.6
I had exactly the same problem after the update to 14.6.1. I tried every thunderbolt port. Unplugged monitor power. Tried using thunderbolt via a dock, nothing worked.
Eventually I tried unplugging the USB-C cable from the monitor side and plugging it back in. Voila! Monitor sprung back into life. Maybe this will help you too.
Having the same problems on all 3 Mac’s. Mac Mini Studio with M2 Max running 14.6.1, MacBook Pro with M2 Pro and MacBook Pro M1 Pro both running 15.0.1.
Connect one or more external displays with your Mac
Connect one or more external displays with your Mac - Apple Support (CA)
Second External monitor not working after update Sonoma 14.6.1
