how can i use two monitor on tx2

in tx2 hardware discription ,tx2 has 2x HDMI 2.0

now in my object, I need tx2 to display my program on two monitor ( expand mode)

I designed the base board my self as tx2 hardware design guide ,and find that when I connect two hdmi port on two

monitor,the tx2’s ubuntu system can only recongnize hdmi0

can’t recongnize hdmi1.

I find that the hdmi1 display port don’t have any output singal.

even on the moment when I powered on the power .

so ,I think it may not be a software or driver problem.

may be it’s a hardware problem.

so ,how I can use hdmi1 diplay port to diplay the second screen on the second monitor ?
or ,how I can use two monitor display on tx2 ?


If you hardware is corret, you also need to flash the correct dtb.

Please refer to our kernel source and there should be a dts file : “tegra186-quill-p3310-1000-c03-00-dsi-hdmi-hdmi.dts”. You need to compile this kernel dts to dtb.

To flash a new dtb, please modify the “DTB_FILE” field in p2771-0000.conf.common.