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OTT with adv7390,CVBS  no video output

Question asked by chuanyan yin on Apr 10, 2014
Latest reply on Apr 21, 2014 by Wigros Sun

Hi :

      I'm debugging OTT TV-box with android 4.0.4, the Hdmi is ok, but the cvbs video(PAL) is blank. My  boot command line is "console=ttymxc3,115200 init=/init video=mxcfb0:dev=adv739x,BT656-PAL,if=BT656,fbpix=BGR32 video=mxcfb1:dev=hdmi  video=mxcfb2:off fbmem=32M vmalloc=400M androidboot.console=ttymxc3 mtdparts=gpmi-nand:20m(bootloader),20m(bootimg),20m(recovery),-(root) ubi.mtd=3 enable_wait_mode=off"

 

pls note the video0  is adv739x

 

when I connect cvbs with the TV, the TV shows the blank screen, the kernel's log show the adv7390 works in PAL mode.why?

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