Linux: Desktop Environment DE GUI

 

Check which desktop environment you are using

1. echo $XDG_CURRENT_DESKTOP

   

    

2. FROM GUI
   

   

    

3. gnome-shell --version

    

4. gdm3 --version

    

Display Manager VS Display Server

 

Check whether Wayland or Xorg is in use(Display Server)

1. 必须使用GUI terminal, 必须是当前登录用户
   

   echo $XDG_SESSION_TYPE

   

    

2. loginctl list-sessions
   loginctl show-session SESSION-ID -p Type

    

 

Change Display server

 

 

Login as Root in Ubuntu GUI