How to disable auto format in picture settings? (Acer TV AT3228ML)

performat
performat Member Posts: 1 New User

Hello,

 

I'm using the Acer TV AT3228ML with my Apple TV 4th Gen and the picture is cropped.

I'm trying to disable the "auto format" in picture settings of the tv but the setting is always greyed and I can't disable it. On the over hand, the Apple TV doesn't know how to size itself. This has to be managed by the TV.

 

Does anyone know how to disable this "feature"?

 

Thanks in advance!