I have a smaller Panasonic LCD (TC-37LZ800) that I am using to play around with the HDMI out (MLH connector) on my Galaxy Nexus phone. As with most phones, the phone mirrors its native and external display. As the Galaxy Nexus is 720p native, this is what is output to my Panasonic. The exception is when viewing 1080p video in full screen mode; in such an instance the phone outputs 1080p and everything is peachy.
The Panasonic TV in question overscans 720p for some reason. This means that when viewing anything except 1080 full screen video on the phone, about 5% of the screen around the edges, both horizontally and vertically, are clipped (I can't see it). The TV does not have this clipping issue with 1080p.
As Android (ICS) does not offer anything equivalent to the "flat panel scaling" correction, as found in Radeon drivers, to address this very issue, I suppose I will have to live with it?
Does anyone know if I can access a service menu on the Panasonic to adjust how the TV's scaler processes 720p signals? Or any other ideas about how to resolve overscan at 720p? The fact that this overscan is not easily defeatable in the TV's regular menus is kind of galling. But I guess it's not the end of the world either way... Although the fact that this is messing with my Angry Birds experience is making me loose sleep at night