I burn the Image with kernel version imx_4.9.88_2.0.0_ga and connect HDMI to TV. when playing video, the HDMI has no sound and I find the sound from headphone .
How to operate to get the sound out of HDMI ？
Just add this parameter to your uboot:
I add this parameter in the mmcargs and the value of /proc/cmdline is
console=ttymxc0,115200 earlycon=ec_imx6q,0x30860000,115200 root=/dev/mmcblk1p2 rootwait rw video=HDMI-A-1:1280x720-32@60
But it`s still no sound out from HDMI. how to switch sound from lineout to HDMI. Without the param "video=HDMI-A-1" has images out from the HDMI when played the video.
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