Release Note of Ubuntu 15.04 (v1.1)

• Official US West Coast: http://odroid.in/ubuntu_15.04
• Official US East Coast: http://east.us.odroid.in/ubuntu_15.04 (Thanks to David Beauchamp @ ArchLinuxARM)
• Official EU Germany: http://de.eu.odroid.in/ubuntu_15.04
• Official Korea Mirror: http://dn.odroid.com/5422/ODROID-XU3/Ubuntu/

• Ubuntu 15.04
• Kernel 3.10.82
• Fixed SPI Clock speed problem
• Fixed the random reboot issue in the power-off process
• Fixed non-working UHS-1 SD-card mode if OS reboot
• Added Notro fbtft driver
• Enabled Triple buffering
• Add support to force the following resolutions on boot.ini: 1280×800, 1440×900, 1080p50hz, 640×480, 720×480, 720×675 and 800×600
• Enabled more CPU governors modes. Performance, Interactive, Conservative, OnDemand and PowerSave. Default governor can be selected on boot.ini
• Preparations to support XU4

• Mali r5p1 driver has an issue on eglConfigAttrib preventing some applications to run properly.
• OpenGL ES 3.1 API doesn't work yet
• Mali fbdev performance is still very low.
• Tons of issues unsubscribed.

Edit /etc/chromium-browser/default like this:

CHROMIUM_FLAGS=" --use-gl=egl --ignore-gpu-blacklist --disable-accelerated-2d-canvas --num-raster-threads=2"

You can see much smoother HTML rendering. Try this link to test the Webgl on the ODROID. Webgl demo

Tip: When you exit the full-screen mode, the screens goes just black from time to time.
Press “Ctrl-Alt-F2” and “Ctrl-Alt-F7” as a workaround.
Update
The black screen issue has been resolved with the Kernel update of 3.10.92 or higher.

Update
If you use the latest Chromium Ver 43 or higher, the hardware acceleration doesn't work if you don't enable it manually.
Enter this in the URL box of the Chromium.

chrome://settings/

And click “Show advanced settings…” in the bottom side.
Check “System - Use hardware acceleration when available” and restart the Chromium.

The Kodi(xbmc) crashes when exit.

Workaround : Open a virtual terminal (ctrl-alt-F2) and kill it.

• killall -9 kodi.bin

And return to desktop (ctrl-alt-F7)

All source code used can be found here: https://github.com/mdrjr/5422_BSP

This guide is only for the NATIVE BUILD.

$ git clone --depth 1 https://github.com/hardkernel/linux -b odroidxu3-3.10.y
$ cd linux
$ make odroidxu3_defconfig
$ make -j9
$ sudo make modules_install
$ sudo cp arch/arm/boot/zImage /media/boot
$ sudo cp arch/arm/boot/dts/exynos5422-odroidxu3.dtb /media/boot