Show via lvds and hdmi at the same time

[sharpjison]

Hello :

   If I want to show via lvds and hdmi at the same time , where should the kernel codes be modified or added?

   My software : linux-4.1.15

   My hardware : imx6q

   Thank you !

[joanxie]

try to add "video=mxcfb0:dev=hdmi,1920x1080M@60,if=RGB24 video=mxcfb1:dev=ldb,LDBXGA,if=RGB666" in the uboot command.