Difficulty getting dual monitor + mac mini + kvm setup working. All devices detected but only one screen rendering.
So this is the setup I am trying to make work here, or at least the last iteration of the setup
┌────────────────────┐ ┌────────────────────┐
│ Alienware Monitor│ │ Dell Monitor │
│ (AW3821DW) │ │ (S2721HSX) │
└────────────────────┘ └────────────────────┘
DisplayPort to HDMI HDMI Cable
Cable │
│ │
▼ ▼
┌────────────────────────────────┐
│ KVM Switch │
└───┬────────────────┬───────────┘
│ │
│ │
HDMI Cable HDMI Cable
│ │
│ │
│ │
│ │
HDMI to Thunderbolt │
Adapter │
│ │
▼ ▼
┌─────────────────────┐
│ Mac │
│ Mini │
└─────────────────────┘
What seems to be happening is
The Dell connected via the plain jane HDMI cords work fine. The monitor is detected and renders a display.
The Alienware monitor on the other hand appears to be somewhat detected, as in the system setting will detect some sort of display device but without the model name or any resolution options that make any sense.
I can move my mouse off screen.
I have tried to reset the mac mini
I have tried reseting the alienware monitor
I have doubnle checked the input selector (it is set to the display port output)
I have cycled the KVM
I have checked all connections and tired replacement wires
I am at my wits end here and before I start going off buying more fancy wires I was hoping to someone in the community could help me better understand whats going on here, or help me pick out the correct setup/wires/hub to make this work.
Thanks and Cheers!
Here are the monitor model numbers and mac mini specs
Mac Mini M2
one HDMI port two thunder ports
Main
alienware aw3821dw (this one doesn't seem to recognize the incoming signal)
Secondary (this one renders fine)
dell monitor s2721hsx
Mac mini, macOS 14.5