Originally Posted by
jimbouk
If you are cloning the display (same image on both screens) then you have to have the same resolution. This will either mean distortion through scaling or one of the screens will pan due to the different aspect ratios.
You might be able to get a compromise if you output to 1080 on both and set the tft to fixed aspect ratio scaling, if you're lucky you'll get the image slightly shrunk with black lines top and bottom. Or maybe the TV has an option not to stretch the input and use the tft's resloution.