In order to utilize both real and faux logs in an outdoor fireplace, you would need to utilize a stainless steel log lighter such as this one:
Stainless Steel Log Lighter
This item is basically a single tube burner assembly that can be used to light real wood or can give the necessary ambiance to a faux log setup. It is also durable enough to handle the outdoor elements and being covered in ash for extended periods. Unfortunately, the more sophisticated outdoor gas log burners are not capable of being used with real wood. They are simply not durable enough to handle the ash, cinders, and heat of a real wood fire.