Tx2 has two HDMI outputs, one is HDMI-0 and the other is HDMI-1. Then the default HDMI of the system is HDMI-0. How to make the system output to HDMI-1 by default?
What is your definition of “default monitor”?
System default image display output.In TX2, the default display output is HDMI-0. Now we want the system’s display output to be HDMI-1.How to configure to adjust the display output of the system to HDMI-1？
Your definition of default screen is the primary monitor from X11, right?
yes，primary monitor from X11
If you want to change the default output from X, please try
xrandr --output HDMI-1 --primary
did you resolve the problem that changing HDMI-0 to HDMI-1? i tryied ”xrandr --output HDMI-1 --primary”，it tells “warning: output HDMI-1 not found; ignoring”.