I am using screeninfo utility to run the code on the first display of the jetson.
However, when I run the code remotely from my laptop using ssh, I am able to show the results on the jetson attached display and I get an error.
I am not allowed to use vnc/teamviewer/nomachine/alike and only can ssh.
File "/home/mona/.local/lib/python3.10/site-packages/screeninfo/screeninfo.py", line 32, in get_monitors
raise ScreenInfoError("No enumerators available")
screeninfo.common.ScreenInfoError: No enumerators available
if I try
$ Xvfb :0 -ac &
$ export DISPLAY=:0
$ python my_code.py
It runs but then shows the dimension of the display for my laptop not the one attached to jetson.
How can I fix this and run the code remotely from my laptop and show results on the jetson attached display? I also tried
$ Xvfb :99 -ac &
$ export DISPLAY=:99
$ python my_code.py
But same situation.
also
mona@ubuntu:~$ DISPLAY=:0 xeyes
Error: Can't open display: :0
mona@ubuntu:~$ cat /etc/X11/xorg.conf
# Copyright (c) 2011-2013 NVIDIA CORPORATION. All Rights Reserved.
#
# This is the minimal configuration necessary to use the Tegra driver.
# Please refer to the xorg.conf man page for more configuration
# options provided by the X server, including display-related options
# provided by RandR 1.2 and higher.
# Disable extensions not useful on Tegra.
Section "Module"
Disable "dri"
SubSection "extmod"
Option "omit xfree86-dga"
EndSubSection
EndSection
Section "Device"
Identifier "Tegra0"
Driver "nvidia"
# Allow X server to be started even if no display devices are connected.
Option "AllowEmptyInitialConfiguration" "true"
EndSection
mona@ubuntu:~$ cat /var/log/Xorg.0.log | grep EE
[ 14.059] Current Operating System: Linux ubuntu 5.15.136-tegra #1 SMP PREEMPT Mon May 6 09:56:39 PDT 2024 aarch64
(WW) warning, (EE) error, (NI) not implemented, (??) unknown.
[ 14.736] (EE) NVIDIA(0): Failed to allocate NVIDIA Error Handler
[ 14.796] (II) Initializing extension MIT-SCREEN-SAVER
mona@ubuntu:~$ sudo xhost +SI:localuser:$USER
xhost: unable to open display ":0"
mona@ubuntu:~$ sudo xhost +local:
xhost: unable to open display ":0"
mona@ubuntu:~$ ls -l /run/user/1000/gdm/Xauthority
-rwx------ 1 mona mona 100 Oct 8 10:17 /run/user/1000/gdm/Xauthority
mona@ubuntu:~$ cp /run/user/1000/gdm/Xauthority ~/.Xauthority
mona@ubuntu:~$ export XAUTHORITY=~/.Xauthority
mona@ubuntu:~$ DISPLAY=:0 xeyes
Error: Can't open display: :0
mona@ubuntu:~$ cat /etc/ssh/sshd_config | grep X11Forwarding
X11Forwarding yes
# X11Forwarding no
mona@ubuntu:~$ echo $DISPLAY
:0