Hi,
I am trying to output lcd display graphic 240x320.
When triggerting test color bar (internal davinci register), I see color bar stable and clean, but on rendering image with fbdev, I get v-sync movement .
I have tried to check the assumption that the color bar stability is only because of its vertical lines, so I created the following image (note that it contain a white bar in the left too, it is on white background so hard to notice)
But on rendering it with fbdev I still got v-sync movements:
https://drive.google.com/file/d/0B22GsWueReZTMEI0QTlic0h6N0U/view?usp=sharing
It also seems to be shifted (in the LCD I see the pink and red bards in the margins instead of white and black, note that it is not the same bar as the internal color bar test in hdvpss)
I still don't understand what it means, maybe rendering through fbdev change the timings ?
I also tried to display white image (240x320) and I still see some lines.
Is it becuase fbdev changes timing compared to the internal color bar test ?
Regards,
Ran