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the final aim is to view picture displayed from HD-COMP and SD-COMP(S-Video)

 

SDK = ti-ezsdk_dm816x-evm_5_02_01_59

When running QT demos

I want to know

which graphics pipeline (framebuffer) the demos use 

and

which display device the used graphics pipeline connect to

and

how can I change the chains

and

I get warning  when disenable the graphics pipeline 1&2

commond = echo 0 > /sys/devices/platform/vpss/graphics1/enabled

output = VPSS_GRPX : please open fb1 node first.

so I can do nothing but  consult you

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the final aim is to view picture displayed from HD-COMP and SD-COMP(S-Video)

thanks for any reply