I also have an issue with the resolution of my Odroid running Kodi. I just got the new version of kodi and now the resolution is pretty strange. It says 1152x864, I can't change it to 1920x1080 in the system settings as the option is grayed out. I already tried to set the resolution to Full HD via SSH
(xrandr --output HDMI-1 --mode 1920x1080 --rate 60.0) but then the screen is just cut in half and the GUI is stuck in the upper left corner.