this post was submitted on 25 Aug 2023
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LineageOS Team backported Miracast in LOS 18 but my Android TV accesses the network over an Ethernet cable. Miracast uses Wi-Fi Direct, which requires both devices to be connected wirelessly to the same network.
Ooh - Thanks for the clarification ๐
I was curious since I'm planning to make the jump to LineageOS on my device, and also plan to develop a Miracast receiver app for my Steam Links
If all that mattered was being on the same network, it doesn't matter whether that's WiFi or Ethernet. Frames got switched between those.
WiFi Direct uses, as the same implies, a direct P2P network between the two devices without a third network device in between.
That would indeed not work if the device has no WiFi adapter.
You may perhaps be able to remedy that using a USB WiFi adapter supported by the mainline Linux kernel version running on your device.
Have you tried it though? I'm pretty sure Miracast works over the network too.