Template:UbuntuFocalDesktop-Common

1 Account & Password

Regular Account:
    User Name: pi
    Password: pi

Root:
    User Name: root
    Password: fa

2 Turn off auto-sleep and screen saver

sed -i 's/enableIdlenessWatcher=true/enableIdlenessWatcher=false/g' .config/lxqt/lxqt-powermanagement.conf
echo "mode:           off" > ~/.xscreensaver
sudo reboot

3 Set up auto login

Create dir and file:

sudo mkdir /etc/sddm.conf.d
sudo vim /etc/sddm.conf.d/autologin

The contents of the autologin file：

[Autologin]
User=pi
Session=lxqt.desktop
Relogin=false

Reboot.