We are facing a strange issue. We are using ADV7604 in HDMI mode and it detects the 1920x1080 input video signal properly and process it too. But when we disconnect the input signals it shows a small blue screen on left side (approximately of 640x480 or 720x480) size and in rest of the screen it shows the last processed image.
Now, my question is why the blue screen does not cover the complete screen of 1920x1080 and shows only on partial screen. When we use the 7604 to process Analog signal in that case when we remove the input signal it shows complete blue screen (e.g. 1920x1080) on the display.
Are we missing any settings here? Your help is really appreciated.