I am unsure if this is the right community but here it goes.

I want to buy a smart TV and I will plug a HDMI device into it. I want to stream my games and movies to the TV via moonlight/jellyfin. I heard about ACR and how it can be used to recognize content running on our TV which will be then sold off to advertisement companies/data brokers.

Say I have isolated the traffic of the TV (the OS of the TV specifically) to a separate VLAN. But the connected HDMI device is connected to the internet. Can the TV use this network to effectively “phone home”? Do HDMI devices have this capability?

PS: I know modern HDMI dongles can also share data but I at least have the option to change the device/use a mini PC.

Edit: There might be a misunderstanding. I don’t want the TV to communicate via HDMI. I want to know if it’s possible and what should I do so that I can prevent this form of communication. However, it seems that this protocol is incredibly rare so I should be fine. However, some TVs can attempt to connect to open WiFi, so it would be wise to just yank the WiFi chip from inside the TV.

  • grue@lemmy.worldEnglish
    71·
    1 day ago

    Demonstrating the need for jail breaking firmware for smart TVs (and repealing the DMCA anti-circumvention clause that enforces Tivoization) in two different ways at once:

    1. You can’t use ethernet-ovet-HDMI on your smart TV because you don’t have enough control over it even though it’s running Linux.
    2. You only care about the feature in the first place because you don’t have enough control over it even though it’s running Linux.