In case you have a GPU,
sudo apt install arandr
Save the configuration script file in: $HOME/.screenlayout/OfficeMonitor.sh
Start OfficeMonitor.sh script with XFCE Session and start up
Create /etc/lightdm/lightdm.conf.d/dual-monitor.conf
[SeatDefaults]
display-setup-script=/home/khant/.screenlayout/OfficeMonitor.sh
session-setup-script=/home/khant/.screenlayout/OfficeMonitor.sh
Fix this bug for audio:
sudo apt install ofono