Hi,
since I can’t answer to this thread (Screen casting /e/ phone with TV) because it has been closed, I open that new one just to give my inputs (quite simple ones).
So I have an Samsung A5 2017 stuck to /e/OS 2.2 R. Support has been stopped so I don’t have any update on this phone.
I tried a lot of time to cast my screen on my TV (2014 LG TV: smart but not Android one) and while the connection was established I got a black screen and at the end an error (can’t mirror your screen).
After some try, I wonder what would happen if I disable my VPN (ProtonVPN)… And that worked!
So perhaps that if you don’t succeed to cast your screen you could double check if you have any VPN enabled (I don’t know if some Advanced privacy features could block screen cast like VPN).
Perhaps firewall could also be a problem… to double check
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