Nintendo blocked third-party docks for Switch 2. People think "Big N" did it on purpose
The console recognizes the connection, but does not display an image on the screen.
According to GoNintendo, users on forums and social networks are massively complaining that their third-party docks have stopped working after installing update 21.0.0: Switch 2 recognizes the connection, but does not display an image on a TV or monitor. At the same time, the included docking station works without problems.
Problem brands include GuileKit, JSAUX (some models), Hagibis, and others. JSAUX and dbrand KillSwitch 2 and VITURE Pro Mobile Dock adapters continue to work.
Some manufacturers have already confirmed the malfunction and are working on updates for their devices to bypass the blocking.