Jetson TX2 OEM with two HDMI

Autonomous Machines Jetson & Embedded Systems Jetson TX2
1

I need to use two HDMI on the TX2.The OEM Product Design Guide says DP/HDMI + DP/HDMI + single/dual-link-DSI,it meams i can use DP0 and DP1 to link two HDMI? And i can’t find two HDMI_CEC pins on the Carrier Board.

2

jetsun2011,

You may need to hack the edid to one of the HDMI monitor, since there is only one CEC pin.

It could be done in the device tree as below example.

sor1 { // indicate one head
 			status = "okay";
 			hdmi-display {
 				status = "okay";
 				compatible = "hdmi,display";
 				/* 1920x1080 */
 				/* nvidia,edid = [00 FF FF FF FF FF FF 00 04 21 00 00 00 00 00 00
 					01 00 01 03 00 00 00 00 00 00 00 00 00 00 00 00
 					00 00 00 00 00 00 01 01 01 01 01 01 01 01 01 01
 					01 01 01 01 01 01 02 3A 80 18 71 38 2D 40 58 2C
 					45 00 00 00 00 00 00 00 00 00 00 10 00 00 00 00
 					00 00 00 00 00 00 00 00 00 00 00 00 00 10 00 00
 					00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 10
 					00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 E9]; */