I had to go into ssh to enable it. also i am getting sound through hdmi. i wasnt at first but i went into the kodi settings to change it to hdmi, then changed the audio settings in the start menu.
In the ssh i put this in to enable the drivers
mount -o remount,rw /boot
batocera-settings /boot/batocera-boot.conf –command uncomment –key nvidia-driver
mount -o remount,ro /boot