autostart emulationstation using custom variable

Question

I'm setting up retropie with emulationstation on my Nvidia Jetson Nano. These dev boards are only supported for 18.04. Unfortunately there's a bug with SDL2 so emulationstation crashes on startup unless I start it with DBUS_FATAL_WARNINGS=0 emulationstation from the command line. Now that I have a workaround I need to incorporate it into ~/.config/autostart/retropie.desktop

The original is

[Desktop Entry]
Type=Application
Exec=gnome-terminal --full-screen --hide-menubar -e emulationstation
Hidden=false
NoDisplay=false
X-GNOME-Autostart-enabled=true
Name[de_DE]=RetroPie
Name=rpie
Comment[de_DE]=RetroPie
Comment=retropie
Icon=/usr/local/share/icons/retropie.svg
Categories=Game

I tried

[Desktop Entry]
Type=Application
Exec=gnome-terminal --full-screen --hide-menubar -e "bash -c DBUS_FATAL_WARNINGS=0 emulationstation"
Hidden=false
NoDisplay=false
X-GNOME-Autostart-enabled=true
Name[de_DE]=RetroPie
Name=rpie
Comment[de_DE]=RetroPie
Comment=retropie
Icon=/usr/local/share/icons/retropie.svg
Categories=Game

With no success. Any suggestions?

Answer 1

I ended up placing the startup command in a script

#!/usr/bin/env bash
export DBUS_FATAL_WARNINGS=0
/usr/bin/emulationstation

saved to /home/pgcudahy/startemulationstation.sh and ran chmod +x /home/pgcudahy/startemulationstation.sh to make it executable

And then modified ~/.config/autostart/retropie.desktop to

[Desktop Entry]
Type=Application
Exec=gnome-terminal --full-screen --hide-menubar -e /home/pgcudahy/startemulationstation.sh
Hidden=false
NoDisplay=false
X-GNOME-Autostart-enabled=true
Name[de_DE]=RetroPie
Name=rpie
Comment[de_DE]=RetroPie
Comment=retropie
Icon=/usr/local/share/icons/retropie.svg
Categories=Game