Assistance needed: display resolution issue on A603 Jetson Orin NX Jetpack 6.0

Products & Technology Single Board Computers
3

Hi, thanks for your reply. I have already tried but it’s not working. Not sure if I’m doing things right though. Here’s what I did:

xrandr

Screen 0: minimum 8 x 8, current 1920 x 1080, maximum 32767 x 32767
DP-0 disconnected (normal left inverted right x axis y axis)
DP-1 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 800mm x 330mm
   1920x1080     60.00*+  59.94    50.00  
   1680x1050     59.95  
   1600x1200     60.00  
   1280x1024     75.02    60.02  
   1280x800      59.81  
   1280x720      59.94    50.00  
   1152x864      75.00  
   1024x768      75.03    60.00  
   800x600       75.00    60.32  
   720x576       50.00  
   720x480       59.94  
   640x480       75.00    59.94    59.93

cvt 3440 1440 60

# 3440x1440 59.94 Hz (CVT) hsync: 89.48 kHz; pclk: 419.50 MHz
Modeline "3440x1440_60.00"  419.50  3440 3696 4064 4688  1440 1443 1453 1493 -hsync +vsync

xrandr --newmode “3440x1440_60.00” 419.50 3440 3696 4064 4688 1440 1443 1453 1493 -hsync +vsync

xrandr --addmode DP-1 “3440x1440_60.00”

X Error of failed request:  BadMatch (invalid parameter attributes)
  Major opcode of failed request:  140 (RANDR)
  Minor opcode of failed request:  18 (RRAddOutputMode)
  Serial number of failed request:  25
  Current serial number in output stream:  26

For reference, under Jetpack 5.1.2, xrandr only shows HDMI-0 with correct resolutions detected. Not sure how HDMI-0 became DP-0 and DP-1 under Jetpack 6.

Thanks!