How do I default my Pi Zero W/retropie Global Video to Composite video??

[dwayne1796]

Hello all!

I am extremely new to to the whole RPi scene and everything and found retropie to be the only application I would find a good use to the system for me.

I have the Pi zero with retropie installed.

I put Super Mario World on the system to run through the SNES emulator I installed. works perfectly through HDMI.

Now i have a 5.0 inch composite video lcd screen that i have hooked up to the pi zero through the TV pin out, and power is being supplied to my lcd.

now when I start Mario, there is a popup where I press any button, I can change some settings. I do this and I'm able to go into the video settings of the rom and the emulator and change them to SDTV: NTSC.

PERFECT! It loads the game on my 5 inch composite video screen and looks like the classic SNES I remember.

Here is my problem. When I go back to the main menu, it switched back to HDMI and outputs to my monitor.

i don't want this, I want to boot into my composite screen, browse on my composite screen, and play games on my composite screen as my goal is to make a stand alone handheld. I don't have a wi-fi dongle yet to ssh into the root directories, but i had made some changed to the config.txt file that in theory should default to the composite source. But no cigar. I've tried booting without the HDMI connected and still nothing.

I know the composite source works as I'm able to play Super Mario World on it when I load the SNES emulator. So it has to be some settings I'm missing somewhere or something.

TL;DR How do I make the global video output to my composite video source instead of it defaulting to HDMI