xrandr – How do I run xandr command on startup under Ubuntu 18.04 Kernel 5.4.0-58-generic?

I have tried to run the following command, for a dual monitor set up, on Uxterm terminal manually once Ubuntu 18.04 Kernel 5.4.0-58-generic has started up and it works fine:

/bin/bash -c "sleep 60&&xrandr --output HDMI-1 --primary --mode 1440x900 --pos 0x180 --rotate normal --output eDP-1 --mode 1920x1080 --pos 1440x0 --rotate normal"

Nonetheless, adding this line to the start up applications within LXSession, does not take any effect.

Does anyone have any idea that might help to fix this?

Thanks