AnyDesk - Remote Server Display Not Supported Solution

Step 1 - OPEN the custom.conf 

        >sudo gedit /etc/gdm3/custom.conf

             or

        > sudo vi /etc/gdm3/custom.conf

Step 2- Uncomment the below line and change user1 to $USERNAME  [current user name]

          WaylandEnable=false

          AutomaticLoginEnable = true

          AutomaticLogin = $USERNAME    

Step 3- Then restart your PC, then try to login remotely again.    

Step 4- Execute the below services.

        sudo service gdm3 restart

        sudo service gdm restart 

ENJOY