Luna Display Setup Error

Fixing "No Luna Display Found" Error

If you see an error message like this, it means there’s a hardware compatibility issue:

Why Am I Seeing This Error?

1. Your Mac Has Reached Its Display Limit

Luna Display functions like a regular external monitor. Macs support a limited number of external displays, depending on the model and year.

Find your Mac’s display support details in Apple’s Technical Specifications. Look for the Video Support section: 

For example, a 2020 M1 Mac Mini supports only two external displays—one via Thunderbolt (USB-C) and one via HDMI. If your Mac has reached its limit, Luna won’t connect.

2. Luna Is Plugged Into an Incompatible Port

For best results, plug Luna directly into a compatible port instead of using adapters, docks, or hubs. Learn more about adapters.

Important: If using a Mac Studio or an M4 Mac Mini, plug Luna into a rear Thunderbolt/USB 4 port. The front USB-C ports do not support displays and will cause a compatibility error.

Some Macs, like the 2021 M1 iMac, have USB-C ports that do not support display output. Make sure you are plugging Luna into a port labeled Thunderbolt/USB 4.

The Mac Studio has two front USB-C ports that do not support displays. Plug Luna into one of the four Thunderbolt/USB 4 ports on the back.

3. Other USB Devices Are Interfering

If other USB or Thunderbolt devices are plugged in, they may be using too much bandwidth, preventing Luna from working.

On Intel Macs, Thunderbolt ports are grouped into pairs that share bandwidth. If a high-resolution monitor, Thunderbolt dock, or external hard drive is using one port in a pair, Luna may not have enough resources.

For example, a 2019 MacBook Pro has four Thunderbolt 3 ports, two on each side. Each side shares bandwidth between its two ports.

Try This:

• Unplug other USB or Thunderbolt devices and try Luna again.
• Plug Luna into a different Thunderbolt port.

Still Having Issues?

If you’re still experiencing problems, contact our support team for further assistance.