This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

DM8168 Composite output

Hi Everyone

   I have a problem on DM8168 composite output.

MY Environment:

  Hardware:DM8168 EVM  BOARD

  Software:DVRRDK_02.80.00.10

Trouble:

   onChip Composite do not output。onchip HDMI output OK。

Procedure:

   When DM8168 mount Filesystem OK。

   Run script in opt/dvr_rdk/ti816x: init.sh  load.sh

   Run App saFbdevDisplay source code is at \DVRRDK_02.80.00.10\ti_tools\linux_lsp\linux-psp-dvr-04.04.00.01\src\examples\video\saFbdevDisplay.c

  if use /dev/fb0 test onchip HDMI output is OK.But use /dev/fb2 test onchip composite output is failed. display nothing.

other information:

  cat    /sys/devices/platform/vpss/display2/enabled   

  1

cat /sys/devices/platform/vpss/display2/name

  sd

cat /sys/devices/platform/vpss/display2/order

0,0

cat /sys/devices/platform/vpss/display2/output

composite

cat /sys/devices/platform/vpss/display2/timings

216000,720/12/68/64,480/5/41/5,0

somebody can help me to solve this problem?why composite do not output (EVM Board Comp OUT J4)?

thank you very much。