Release Note of Ubuntu Minimal 20.04.3 LTS (v3.3)

File name : ubuntu-20.04-4.9-minimal-odroid-n2-20220228.img.xz

• Official US West Coast: https://odroid.in/ubuntu_20.04lts
• Official US East Coast: https://east.us.odroid.in/ubuntu_20.04lts (Thanks to David Beauchamp @ archlinuxarm)
• Official EU Germany: https://de.eu.odroid.in/ubuntu_20.04lts
• Official Korea/Asia Mirror: https://dn.odroid.com/S922X/ODROID-N2/Ubuntu/

• Linux Kernel LTS 4.9.277
• The latest Ubuntu 20.04.4 point release
• Support the new N2-Plus model
• Support a variant 2GB model 2GB with two DDR4 chips
• Mali GPU driver for framebuffer(fbdev): OpenGL-ES 1.1, 2.0, 3.0 and 3.1 with OpenCL-1.2 and 2.0.
• A lot of Kernel patches
• New config.ini instead of boot.ini
• Device Tree overlays support

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. It comes with Mali GPU accelerated SDL.

  target

  sudo apt update
  sudo apt upgrade
  bash -c "$(curl -sL http://deb.odroid.in/install_ppsspp.sh)"
  cd /root/ppsspp
  ./PPSSPPSDL

• A slightly modified version was required to work
• Source code is on /root/glmark2-es2-fbdev-master or in Github. Build & Installation guide
• 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*
rm usr/share/mali/libOpenCL.so* usr/share/mali/libEGL.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                               

1. c2play

• Start playback

  target

  ./c2play --help
  ./c2play [Filename]

2. kplayer

• Alternative way: A more flawless 4K video play with 'kplayer'.
• kplayer usage:

  target

  kplayer filename

• Available here

• Native Kernel build Guide

target

sudo apt update
sudo apt full-upgrade
sudo reboot