@RapidEdwin08 --- Thank you.
It worked really well.

@RapidEdwin08 said in How To Auto Start into Kodi When The Option Is Missing?:

Modify autostart. sh with the content of the Exec= command pulled from the RetroPie Desktop shortcut.
Example /opt/retropie/configs/all/autostart.sh:

kodi
gnome-terminal --full-screen --hide-menubar -e emulationstation

There wasn't a file "autostart. sh" at /opt/retropie/configs/all/.
But it was fine, I just created one in that location and continued with your instructions.

Again, it worked very well. Thank you.

@bejhan this didnt fix the black screen issue for me with kodi 18.1 on this vizio vo400e tv. This did fix an issue with kodi 18.1 where the screen was crazy zoomed in and the only way to fix it was to minimize the screen and then maximize it again on an lg oled c6.
On the vizio tv that i am having issues with now if i just power the tv off then on again it works fine till i go back to the retropie menu and then thats a black screen. Same thing happens if I switch film mode off then kodi appears but then when you exit the retropie menu is a black screen. Same thing happens when you switch inputs on the tv from hdmi 1 (where pie is connected) to something else then back to hdmi 1 and once again when you exit the retropie menu is black screen until you do 1 of the methods i mentioned above. So what is kodi on launch (and exit) doing that is making the tv black screen that nothing else installed in retropie is doing. For example I have pixel desktop (lxde) installed under ports also and a bunch of emulators. Everything else but kodi launches and exits fine.