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A problem about framebuffer of Jacinto6

I use the uboot and kernel you support and the ramdisk and system.img I make myself, and I can see the device node:/dev/graphics/fb0.

When I run a program draw something into the framebuffer0 with my ramdisk and system.img, I can see nothing on the lcd panel.But when I run the program on the android os you support, I can see the image on the lcd panel.

Whether I miss something else or not before I use the device node:/dev/graphics/fb0?

I have read the init.rc of the android you support, and I have found nothing but the pvrsrvinit different from my os, but when I run the binary code pvrsrvinit, it tips that:

/bin/sh: ./pvrsrvinit: No such file or directory

How can I get the source code or a binary code than can run on my os?

Think you for your help!