Connected displays communicate capability information that helps a source choose compatible video and audio modes. EDID is part of that process. Receivers, adapters and switches can affect what the source sees, which explains why available options may change when the connection route changes.
Treat the list as a negotiated view
The player’s menu reflects both its own abilities and the capabilities it learns from connected equipment. It is not simply a list of everything the television panel can theoretically do. An intermediate receiver may present a more restricted set of modes, especially when several outputs are in use.
Rebuild the connection sensibly
If expected options disappear after moving equipment, check cables and the active input, then follow the manufacturer’s recommended restart or reconnection process. Avoid forcing a custom mode before verifying support. A mode that appears selectable is also not proof that every programme or app will use it correctly.
Keep a working fallback
Record a compatible resolution and refresh setting before experimenting. If the display becomes unreadable, use the device’s documented recovery method or automatic confirmation timeout. For support, describe the direct and intermediate connection results. That gives a clearer picture than saying the television is 4K while omitting the receiver or adapter in between.
