I want to force full RGB (0-255) HDMI output.
This is because my TV (a 2016 Samsung KS7000) thinks the RPi5 is a PC, so it expects full RGB, and skips parts of a full EDID handshake. The Pi does not receive a full EDID, so it falls back on limited range. This mismatch causes lifted blacks and muted highlights, resulting in a washed-out picture. I tried configuring the TV for limited range, but that only persisted until I changed the source back and forth, then the mismatch came back (it's a glitchy and bad TV set honestly).
Is there some way to configure the config files to force full RGB (0-255)?
