Ubuntu Focal Desktop

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1 Work with Ubuntu 20.04 (Focal) Desktop

1.1 Introduction to Ubuntu 20.04 Desktop

Ubuntu 20.04 Desktop has the following features：

• Base on Xorg, using LXQT as the desktop environment;
  
• SDDM is the default display manager;
  
• Mali GPU-based OpenGL ES support;
  
• Support Rockhip MPP video hard coding and hard decoding;
  
• Pre-installed mpv, support video hardware decoding;
  

1.2 Account & Password

Regular Account:
    User Name: pi
    Password: pi

Root:
    User Name: root
    Password: fa

1.3 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

1.4 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.