===== Auto startx =====
==== Add following lines in "/etc/modprobe.d/lcd35.conf" file. ====
  options fbtft_device name=flexpfb rotate=270
  options flexfb chip=ili9488

==== Add following lines in "/etc/modules" file. ====
=== ODROID-C1/C2 ===
  aml_i2c
  pwm-meson
  pwm-ctrl
  fbtft_device
  flexfb
  sx865x
=== ODROID-XU4 ===

  fbtft_device
  flexfb
  sx865x
  
To enable sx865x touch driver on **ODROID-XU4**,  you need to fix a dtb as following commands.
  sudo apt-get install device-tree-compiler
  sudo cp /media/boot/exynos5422-odroidxu3.dtb /media/boot/exynos5422-odroidxu3.dtb.old
  sudo fdtput -t s /media/boot/exynos5422-odroidxu3.dtb /hsi2c@12CB0000/sx865x@49 status "okay"


==== Create a new config file ====
  sudo mv /etc/X11/xorg.conf /etc/X11/xorg.conf.old
  sudo rm -fr /etc/X11/xorg.conf.d/exynos.conf
  
==== Add following lines in "/etc/X11/xorg.conf" file. ====
<code>
Section "Device"
    Identifier    "C fbdev"
    Driver        "fbdev"
    Option        "fbdev" "/dev/fb2"
EndSection
</code>

<WRAP hide>
==== Check lightdm service ====
  sudo systemctl list-unit-files | grep lightdm
If the lightdm service is static, run following command.
  sudo dpkg-reconfigure lightdm
</WRAP>
==== Automatically enable the Backlight ====
The PWM0 of **ODROID-C2/C1** is pull-down as default, so you have to add following line in "/etc/rc.local" file.
  echo 500000 > /sys/devices/platform/pwm-ctrl/freq0
  echo 1 > /sys/devices/platform/pwm-ctrl/enable0
  echo 1023 | sudo tee /sys/devices/platform/pwm-ctrl/duty0
==== Reboot ====
  sudo reboot
  
===== Auto login =====
If you want auto login on Ubuntu 14.04 \\
Edit /etc/lightdm/lightdm.conf file to enable auto-login: (password: odroid)

<code>
odroid@odroid:~$ sudo vi /etc/lightdm/lightdm.conf
[sudo] password for odroid: 
odroid@odroid:~$ cat /etc/lightdm/lightdm.conf 
[SeatDefaults]
autologin-user=odroid
autologin-user-timeout=0
odroid@odroid:~$ 
</code>

If you want auto login on Ubuntu 16.04 \\
Edit /usr/share/lightdm/lightdm.conf.d/60-lightdm-gtk-greeter.conf file like this.
<code>
[SeatDefaults]
greeter-session=lightdm-gtk-greeter
autologin-user=odroid
</code>