How to use the multiple-screen support?

Robotics & Edge Computing Jetson & Embedded Systems Jetson AGX Xavier
1

In another thread, NVIDIA said that the Jetson supported up to three displays, through the HDMI port the the two USB-C ports.

I plugged in a USB C / HDMI adapter into the port on the back (next to the GPIO pins) of the devkit, and attached a 1080p display. I then rebooted the Xavier. However, it only provides signal on the HDMI output, and xrandr doesn’t see the display as connected:

nvidia@xavier:~$ xrandr 
Screen 0: minimum 8 x 8, current 1024 x 600, maximum 32767 x 32767
HDMI-0 connected primary 1024x600+0+0 (normal left inverted right x axis y axis) 150mm x 100mm
   1024x600      43.07*+
DP-0 disconnected (normal left inverted right x axis y axis)
DP-1 disconnected (normal left inverted right x axis y axis)

(Yes, the HDMI display is a 1024x600 touch panel. Small enough to ride along on the rover!)

How can I attach a second screen?

2

Nevermind – the USB-C port was snaggier than I thought; a very firm push made full connection and the second display showed up.
Sweet!

The desktop is super confused, though – new apps go on display HDMI, but system apps (and the default cursor) go on display USB-C. The usual confused X server stuff. I’ll work that out. One problem seems to be the cursor isn’t hidden on one display when focus goes to the other display.

3

Hi snarky,

Do you mean there are two cursors on two separate display simultaneously?

4

BTW, I thought the 2 type c port is used for DP.

5

Generally, DP and HDMI are compatible, if you stay within the capability subset of the two. In this case, that’s luckily true :-)

6

I am also having issues with two cursors being shown on two separate displays simultaneously. Were you able to resolve this snarky?