Turn Joggler into a real Digital Picture Frame

TurnToJPG -->

In fact Joggler initially is released as a digital picture frame, but I turned it into a linux server. Now It’s time to turn this server back.

Change RunLevel

Edit the gdm.conf file:

# cat /etc/init/gdm.conf
# gdm - GNOME Display Manager
#
# The display manager service manages the X servers running on the
# system, providing login and auto-login services

description     "GNOME Display Manager"
author          "William Jon McCann <mccann@jhu.edu>"

start on ((filesystem
           and runlevel [!06]
           # Without 03, assume our default level is 03
           #and runlevel [!03]

To known your default run level, type:

# runlevel
N 3

Then reboot the joggler, to see if you could get the gdm window.

Disable auto-logon via:

$ cat /etc/init/tty1.conf
respawn
#exec /sbin/mingetty -8 38400 tty1 Trusty -8 38400 tty1
exec /sbin/getty -8 38400 tty1

Install lightdm via:

$ sudo apt-get install lightdm
$ sudo dpkg-reconfigure lightdm

Enable auto-login to lightdm:

$ cat /etc/lightdm/lightdm.conf 
[SeatDefaults]
autologin-user=Trusty
autologin-user-timeout=0
greeter-session=lightdm-gtk-greeter
user-session=xubuntu

Enable SlideShow

Find out the resolution via following command:

$ xrandr | grep '*'
   800x480        60.0* 

Install essential software:

$ sudo apt-get install feh
$ sudo apt-get install unclutter

In fact using feh is not good enough for setting the screenSaver, at last I use xscreensaver, it has a mode of glslideshow, you can specify your own directory.