This is my first C2 install, after having some good 3 years on RPi2. I've got a Sammy TV which could support perfect 24p playback. On RPi2 unfortunately, the 24p mode was not detected. So I made a custom EDID file (there's a faq somewhere) and included the relevant option in LE's config.txt file to boot using this speficic EDID info. Doing so, my RPi2 happily switched between 60Hz, 50 Hz and 24Hz!
After switching to C2 I am encountering the exact same situation: System happily boots up on 1080p60, however TV does not switch to 24p when 24p material is played. It sticks with 60Hz.
Can I pull a similar trick on C2, like I used on RPi2? That is, trick C2 into thinking that TV can also support 1080p24? FYI, I have enabled the relevant option in the Kodi UI to auto-change rate.