Issue with mouse clicks when using virtual screen

[amirabbasja]

I need a repetitive task done on a virtual ubuntu 22.04 machine. I used pyautogui for it; to connect the screen to pyautogui, I used xvfb with following codes:

Xvfb :99 -screen 0 1024x768x16 &
export DISPLAY=:99

I am able to see the screen, and take screenshots using pyautogui, however, the clicking/dragging function doesn't work. Please note that I am connecting to the vitrtual environment using XRDP and have installed light weight ubuntu-desktop. The code is as follows:

import os
from IPython.display import Image

os.environ['DISPLAY'] = ':99'
import pyautogui
screenWidth, screenHeight = pyautogui.size() # Get the size of the primary monitor.
print(screenWidth, screenHeight)

pyautogui.click(200,200)

There is a button on coordinates (200,200), however, it never gets invoked. What can I do?