Open Decky on the source Mac and Decky Display on the other device. Connect both to the same local network; the Mac can use Ethernet.
Step by step
- Open Decky on the source Mac and Decky Display on the other device. Connect both to the same local network; the Mac can use Ethernet.
- In Decky Settings → Connection, check that Network is on. In Security, turn on Let devices find this Mac if you want it to appear automatically.
- Select the Mac in Decky Display and complete pairing. Keep both devices awake while checking the connection.
- Open Decky on the PC and Decky Display on the other device. Connect both to the same private local network; the PC can use Ethernet.
- In Decky’s Settings → Connection, check that Network is on. In Security, turn on Let devices find this PC if you want it to appear automatically.
- Select the PC in Decky Display and complete pairing. Keep both devices awake while checking the connection.
What to know
The display connection does not require internet access. Guest networks may isolate devices even when the network name is the same. The picture sent to a device is not encrypted; use a network you trust.
The display connection does not require internet access. Windows must list the network as a Private network: Decky’s firewall rules block Public networks. Guest networks may isolate devices even when the network name is the same. The picture sent to a device is not encrypted; use a network you trust.
If it does not work
If discovery fails, check whether a VPN or network isolation prevents local communication. Use the Mac’s address shown in Security for a manual connection, and make sure any custom port matches on both ends.
If discovery fails, check that Windows lists the network as a Private network and that a VPN or network isolation is not blocking local traffic. Decky’s Settings → Connection has Open network settings and Open Windows Firewall. For a manual connection, enter an address from Connect by address in Security, and make sure any custom port matches on both ends.