====== ODROID-XU3/XU4 Tips ======

==== How to change HDMI output resolution ====

You can select the HDMI resolution by editing the boot.ini file.
Just remove three "#" marks for your display. 

The boot.ini file must be placed on the FAT partition on your boot media.

The default setting is 1920x1080(60hz).

=== Default boot.ini file for Android ===
<file ini boot.ini>
ODROIDXU-UBOOT-CONFIG

# --- Screen Configuration for HDMI --- # 
# ---------------------------------------
# ODROID-VU forced resolution
# ---------------------------------------
# setenv fb_x_res "1280"
# setenv fb_y_res "800"
# setenv hdmi_phy_res "800p60hz"
# ---------------------------------------
# 1920x1080(60Hz) Monitor
# ---------------------------------------
setenv fb_x_res "1920"
setenv fb_y_res "1080"
setenv hdmi_phy_res "1080p60hz"
# ---------------------------------------
# 1920x1080(50Hz) Monitor
# ---------------------------------------
# setenv fb_x_res "1920"
# setenv fb_y_res "1080"
# setenv hdmi_phy_res "1080p50hz"
# ---------------------------------------
# 1280x720(60Hz) monitor
# ---------------------------------------
# setenv fb_x_res "1280"
# setenv fb_y_res "720"
# setenv hdmi_phy_res "720p60hz"
# setenv hdmi_phy_res "720p50hz"
# ---------------------------------------
# 1280x720(50Hz) monitor
# ---------------------------------------
# setenv fb_x_res "1280"
# setenv fb_y_res "720"
# setenv hdmi_phy_res "720p50hz"
# ---------------------------------------

setenv vout         "hdmi"

setenv edid         "0"

setenv led_blink    "1"

setenv bootcmd      "movi read kernel 0 40008000;bootz 40008000"

setenv bootargs     "fb_x_res=${fb_x_res} fb_y_res=${fb_y_res} vout=${vout} hdmi_phy_res=${hdmi_phy_res} edid=${edid} left=${left} right=${right} upper=${upper} lower=${lower} vsync=${vsync} hsync=${hsync} led_blink=${led_blink}"
boot

</file>


=== Default boot.ini file for Linux ===

For Linux boot.ini, please refer to [[https://github.com/mdrjr/5422_bootini/blob/master/boot.ini|Github Project Page]].
==== Currently Supported Linux Distributions ====
  * Ubuntu 14.04 [[http://forum.odroid.com/viewtopic.php?f=95&t=5985|Ubuntu 14.04 Forum Thread]]
Note: More distribution support will come with time.

==== HDMI Support On Linux ====

HDMI support should work out-of-box for everyone including framebuffer console if you experience any issue please contact us on the [[http://forum.odroid.com|ODROID Forums]]

On the provided Ubuntu image there are several examples on how to configure the HDMI to your specific resolution or even lock to a certain resolution.
You can check the configuration file on /media/boot/boot.ini of the Ubuntu Image


==== DisplayPort Support on Linux ====

For displayport configuration please follow this guide [[http://forum.odroid.com/viewtopic.php?f=95&t=5976|Displayport Guide on ODROID Forums]]

==== ODROID Utility for Linux Upgrade ====
Note for your own convenience we provide daily builds of Linux kernel that can be easily installed on Supported distros by using a ODROID Utility.
<code>
sudo -s
wget -O /usr/local/bin/odroid-utility.sh https://raw.githubusercontent.com/mdrjr/odroid-utility/master/odroid-utility.sh
chmod +x /usr/local/bin/odroid-utility.sh
odroid-utility.sh
</code>