#1: In my experience there is ION, and then there are all the nVidia boards that people call ION that are actually something else. Tell us the actual nVidia GPU number by running "lspci" and we can confirm whether the board is supported or not.
#2: It is possible to capture the EDID from the TV when it's connected to an edid.bin file and then use a custom xorg.conf that references the edid.bin file to ensure Xorg always thinks the TV is connected. Read: Config EDID nvidia - OpenELEC
#3: Ignore my colleague Klojum, he's confused; config.txt is a pi thing ![]()
