Tested on Alpine Linux 3.21.

1. Archive a copy of the lightdm.conf:

   cp /etc/lightdm/lightdm.conf /etc/lightdm/lightdm.conf.original

2. Open /etc/lightdm/lightdm.conf in vi:

   vi /etc/lightdm/lightdm.conf

3. Locate the line:

   [Seat:*]

4. BELOW that line add:

   autologin-user=USER

5. Replace “USER” with the login name of the account that should automatically logon.
6. Restart the computer. It should now automatically logon with the configured user.

Source:

• Chris Titus - LightDM Configuration

Tested on Alpine Linux 3.21.

1. Install tigervnc:
   1. On Alpine Linux:

      apk add tigervnc

2. Archive a copy of the lightdm.conf:

   cp /etc/lightdm/lightdm.conf /etc/lightdm/lightdm.conf.original

3. Open /etc/lightdm/lightdm.conf in vi:

   vi /etc/lightdm/lightdm.conf

4. Edit below the [VNCServer] block to set it to enabled (enabled=true), remove password (command=Xvnc -SecurityTypes=None), and up the bitdepth to at least 16 (depth=32) to as the default 8 bits are no longer supported:

   --- /etc/lightdm/lightdm.conf.original
   +++ /etc/lightdm/lightdm.conf
   @@ -155,9 +155,11 @@
    #
    [VNCServer]
    #enabled=false
   +enabled=true
    #command=Xvnc
   +command=Xvnc -SecurityTypes=None
    #port=5900
    #listen-address=
    #width=1024
    #height=768
   -#depth=8
   +depth=32

Source:

• Chris Titus - LightDM Configuration
• superuser - Xvnc and Lightdm connect to primary display :0 and login remotely
• Remote access to your office desktop under Linux