I have a custom jetson tx2 nx board. I modified the sor0 from DP to HDMI. Due to design problems, the hdmi of sor1 of our custom carrier board cannot be used. So we want to use the HDMI of the sor0 as output. After modifying the dtb file and flashing, the hdmi interface corresponding to sor0 can display the ubuntu wallpaper but cannot display the login interface when connected to the monitor. I put the core board with the modified Image on the carrier board of the standard jetson nano kit, and the sor1 HDMI of the carrier board of the kit can show the login interface . After logining, xrandr
show
Screen 0: minimum 8 x 8, current 2560 x 1080, maximum 32767 x 32767
HDMI-0 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 530mm x 300mm
1920x1080 60.00*+ 74.98 59.95 50.00
1680x1050 59.96
1600x900 60.00
1440x900 59.89
1280x1024 75.03 60.00
1280x800 59.81
1280x720 60.00 59.94 50.00
1024x768 75.03 60.01
800x600 75.00 60.32
720x576 50.00
720x480 59.94
720x400 70.04
640x480 75.00 59.94
HDMI-1 connected 640x480+1920+0 (normal left inverted right x axis y axis) 0mm x 0mm
640x480 60.00*+
I try to execute command xrandr --output HDMI-1 --same-as HDMI-0
to make HDMI-1(sor0) has the same output as HDMI-0(sor1) , and then put the core board on our custom carrier board again, but hdmi output of the sor0 doesn’t change.
I’m guessing something is wrong with the monitor system configuration, but I can’t find a reference on the forums. Can you give me some suggestions?