Release Note of Ubuntu Minimal 18.04.4 LTS (v2.1)

File name : ubuntu-18.04.4-4.9-minimal-odroid-n2-20200229.img.xz

• Official US West Coast: http://odroid.in/ubuntu_18.04lts
• Official US East Coast: http://east.us.odroid.in/ubuntu_18.04lts (Thanks to David Beauchamp @ archlinuxarm)
• Official EU Germany: http://de.eu.odroid.in/ubuntu_18.04lts
• Official Korea/Asia Mirror: https://dn.odroid.com/S922X/ODROID-N2/Ubuntu/

• Linux Kernel LTS 4.9.213
• The latest Ubuntu 18.04.4 point release
• Support a variant 2GB model 2GB with two DDR4 chips
• fstrim command works with the SD card too
• Improved USB 3.0 storage device stability
• Added improved VPU video play APIs with Kodi video player
• HDMI resolution auto-detection
• Mali GPU driver for framebuffer(fbdev): OpenGL-ES 1.1, 2.0, 3.0, 3.1 and 3.2 with OpenCL-1.2 and 2.0.
• Fixed PPSSPP installation (SDL implementation)
• A lot of Kernel patches

The RootFS Auto-resize feature has changed!!! 
No need for power cycling, resize will happen on background in the first booting process.

• Tons of issues undocumented.

• Install PPSSPP for PSP emulation, source code will be on the same folder:

  target

  /root/install_ppsspp.sh
  cd /root/ppsspp
  ./PPSSPPSDL

• A slightly modified version was required to work
• Source code is on /root/glmark2-es2-fbdev-master
• You can launch it running:

  target

  glmark2-es2-fbdev

• Run the following commands to start an OpenCL programming. (Special thanks to user @DrPhil)

target

apt install clinfo ocl-icd-libopencl1
apt download mali-fbdev
apt autoremove
ar -xv mali-fbdev_*
tar -xvf data.tar.xz 
rm usr/lib/aarch64-linux-gnu/libOpenCL.so*
cp -r usr/* /usr/
mkdir /etc/OpenCL
mkdir /etc/OpenCL/vendors/
echo "libmali.so" > /etc/OpenCL/vendors/mali.icd

target

root@odroid:~# clinfo                                                                        
Number of platforms                               1                                          
  Platform Name                                   ARM Platform                               
  Platform Vendor                                 ARM                                        
  Platform Version                                OpenCL 2.0 git.c8adbf9.ad00b04c1b60847de257177231dc1a53                                                                                 
  Platform Profile                                FULL_PROFILE                               

• Hardware accelerated 4K video playback is possible using c2play
• c2play is a amazing piece of software written by crashoverride Source Code
• c2play usage:

  target

  c2play filename

• Kodi is also available, see below

• To install Kodi 18.5 run:

  target

  apt-get install kodi aml-libs

• You can start by running

  target

  kodi

• CEC works once you add “hdmitx = cec3f” to bootargs in /media/boot/boot.ini file something like this.

  target

  setenv bootargs "root=...... hdmitx=cec3f ......"

• To check the CEC functionality with libcec4, you need to check “AOCEC” port first.

  target

  # cec-client -l
  libCEC version: 4.0.4, git revision: libcec-4.0.4+1-ba9b538, compiled on Fri Aug 23 02:38:50 UTC 2019 by odroid@odroid on Linux 4.9.187-53 (aarch64),C
  Found devices: 1
   
   
  device:              1
  com port:            AOCEC
  vendor id:           0000
  product id:          0000
  firmware version:    5
  type:                unknown

• If you can't find “AOCEC”, you have to build the libcec source code with “AOCEC_API” option on the board.

  target

  # sudo apt update
  # sudo apt install cmake libudev-dev libxrandr-dev python-dev swig
  # cd
  # git clone https://github.com/Pulse-Eight/platform.git
  # mkdir platform/build
  # cd platform/build
  # cmake ..
  # make
  # sudo make install
  # 
  # 
  # cd
  # git clone https://github.com/Pulse-Eight/libcec.git
  # mkdir libcec/build
  # cd libcec/build
  # cmake -DHAVE_AOCEC_API=1 ..
  # make -j4
  # sudo make install
  # sudo ldconfig

• Note that Kodi 18.3 doesn't run on a low resolution display properly. You need an 1920×1080 or 3840×2160 display at least.

• Available here

• Native Kernel build Guide

target

sudo apt update
sudo apt full-upgrade
sudo reboot