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>1280x1024 Scaled to 1600x1200: Working.
>1024x768 Scaled to 1600x1200: Working.
>800x600 Scaled to 1600x1200: Broken!
Sorry, I missed that bit from your first post. This seems to indicate that the issue is not with the frame buffer either since you have successfully buffered 1600x1200 before.
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Hey no problem, more info:
18,000 pixels for the CVI input FIFO and 1920 pixels for the CVO FIFO (starts at 1919). I'm monitoring overflow and underflow and they seem to be ok when in 800x600 -> 1600x1200 mode.
I'm defintely open to trying anything here as I've been stuck on this problem for over a week now :)