Screen Mirroring in GNU Linux
Screen mirroring allows you to display your laptop screen on a TV via Wifi Direct . This is also known as screen casting, Miracast, Wifi Display or Wifi P2P. Usage of Wifi Direct means you don't necessarily need a router or a working network. The data is streamed using RTSP . However, it doesn't use the standard RTSP port. The port information is shared during connection process (usually defaults to 7236 as per Miracast specifications). Also, the RTSP server must support additional Miracast related negotiations. Note: Feature-wise, Second Screen or DIAL (DIscovery And Launch) provides similar experience (primarily for Youtube and Netflix apps). But this (DIAL) requires both the devices to be in the same network. Debian XFCE meets LG 4K TV (UJ632T) The core of this technology in Linux is wpa_supplicant (or its variant - connmand or miracle-wifid). connmand (for WDS ) and miracle-wifid (for MiracleCast ) also manage your network interface. You might also have NetworkManager