🥧 Ubuntu 20.04 Server 2 Desktop on RPi4

Ubuntu 20.04 via RPi4 w/Official 7in LCD

And WM8860 GPIO soundcard addon (speakers)

• Sign-in

  • username: ubuntu

  • password: ubuntu

  • passwd

    • current password: ubuntu

• sudo dpkg-reconfigure -plow unattended-upgrades

  Manual updating from here on out–frees up system resources

• nano /etc/netplan/50-cloud-init.yaml

  wifis:
  wlan0:
  option: true
  access-points:
      "WiFi SSID":
      password: "wifipassword"
  

• netplan apply

• reboot

• sudo apt install openssh-server wireless-tools net-tools

• reboot

• sudo apt update && sudo apt upgrade

• sudo apt install libraspberrypi-bin

• sudo apt install aptitude neofetch tmuxinator ranger sxiv yank xsel calcurse vim powerline ubuntu-desktop

• sudo apt install vim-gtk3 mplayer mpv w3m-img wavemon guake barrier pi-bluetooth dosbox

• sudo apt install kubuntu-desktop lm-sensors

Gnome Display Mangager has surprisingly good touchpad support

• sudo apt install gnome-tweaks gnome-shell-extensions chrome-gnome-shell dconf-editor lm-sensors

• sudo useradd -d /home/user -m user

• sudo passwd user

• chsh -s /bin/bash user

• sudo apt install dkms git build-essential bc automake

• sudo apt install libgles2-mesa libgles2-mesa-dev xorg-dev

• sudo groupadd sound,power (necessary? idk)

• sudo usermod -aG sudo,input,video,sound,power user

• sudo hostnamectl set-hostname supercoolrpi4hostname

• sudo visudo

  ++ user ALL=(ALL) NOPASSWD: /sbin/poweroff, /sbin/refoot, /sbin/shutdown
  

• login to user

• mkdir .sources

• mkdir .sources/installed

• sudo apt remove cloud-init

  cloud-init is unnecessary for a desktop environment

• sudov /boot/firmware/cmdline.txt

  • Add after rootwait: quiet splash plymouth.ignore-serial-consoles

• Comment out changes to /etc/netplan/50-cloud-init.yaml

  2023: I don’t have my RPi4 anymore–not sure what this means

• reboot

• sudov /boot/firmware/usercfg.txt

  ++ # User added
  ++ dtoverlay=vc4-fkms-v3d
  ++ max_framebuffers=2
  ++ gpu_mem=128
  ++ hdmi_enable_4kp60=1
  

• reboot

• Dedoimedo: RPi4 & Ubuntu Mate - How to enable video acceleration

• Ethernet cable time

• sudov /etc/modprobe.d/raspi-blacklist.conf

  blacklist brcmfmac
  blacklist brcmutil
  

  Blacklist builtin drivers to make way for rtl8812au drivers

• cd .sources/installed

• git clone https://github.com/aircrack-ng/rtl8812au

• sudo apt install dkms

• sudo make ARCH=arm64 dkms_install

• reboot

• check with wavemon first: wavemon

• sudo iwconfig wlan0 freq 5.7G

• git clone https://github.com/respeaker/seeed-voicecard

• cd .sources/installed

• cd seeed-voicecard

• sudo ./ubuntu-prerequisite.sh

• sudo ./install.sh

• reboot

• apti gdebi

• wget http://ftp.us.debian.org/debian/pool/main/i/icu/libicu67_67.1-6_arm64.deb

• wget http://ftp.us.debian.org/debian/pool/main/libj/libjpeg-turbo/libjpeg62-turbo_2.0.6-4_arm64.deb

• wget http://ftp.us.debian.org/debian/pool/main/libj/libjsoncpp/libjsoncpp24_1.9.4-4_arm64.deb

• wget http://ftp.us.debian.org/debian/pool/main/r/re2/libre2-9_20210201+dfsg-1_arm64.deb

• wget http://ftp.us.debian.org/debian/pool/main/libw/libwebp/libwebpmux3_0.6.1-2.1_arm64.deb

• wget http://ftp.us.debian.org/debian/pool/main/c/chromium/chromium-common_90.0.4430.212-1_arm64.deb

• wget http://ftp.us.debian.org/debian/pool/main/c/chromium/chromium_90.0.4430.212-1_arm64.deb

• And install (right click .deb in Files, and install with gdebi) via the order listed

• Open Chromium, copy this to URL bar, and enable each option

  • chrome://flags/#ignore-gpu-blocklist

  • chrome://flags/#enable-accelerated-video-decode

  • chrome://flags/#enable-gpu-rasterization

If unconfigured

• sudo sensors-detect

• sensors

• Hackery to keep dpms enabled (screen turns off completely while inactive)

• Create a script in a convienient place

  #!/bin/bash
  
  while true
    do
        xset dpms
        sleep 30
  done
  

• sudoc convenientscript.sh

  sudo chmod +x script.sh

• Find the ‘Startup Applications’ app, and autoload the script

• Grab the left side of the window and stretch the window until the other tabs are revealed (not ideal, but works).

• Super or WIN + LMB (left mouse button) to drag the window

• Security tab in settings

• Tried Docker via https://hub.docker.com/r/bshibley/steamlink-rpi, but there was an ARCH mismatch (arm64? Nay)

• Running DBGL after compiling from source and the amd64 version spawns the same error..

  • (Possible cause: can't load AMD 64-bit .so on a AARCH64-bit platform)

• Here’s one that appears to work

  [Desktop Entry]
  Name=DOSBox Game launcher
  Comment=A graphical frontend for DOSBox
  Exec=/home/USER/.local/share/dbgl/dbgl
  Icon=/home/USER/.local/share/dbgl/dbgl.png
  Terminal=false
  Type=Application
  Categories=Game;
  StartupNotify=true
  

• sudo apt install default-jre libusb-1.0-0-dev libusb-1.0-0 cabextract

• git clone https://github.com/medusalix/xow.git

• cd xow

• make BUILD=RELEASE

• sudo make install

• reboot

• The following to update or uninstall xow

  • sudo systemctl stop xow

  • sudo systemctl disable xow

  • sudo make uninstall

  • repeat git clone etc.

• Active cooling? The SmartPi case is nice, but an additional fan is nicer.

• Monitoring

  • watch -n 1 vcgencmd measure_clock arm

• sudov /boot/firmware/config.txt

  Top of the file

  ++ over_voltage=6
  ++ arm_freq=2147
  ++ gpu_freq=750
  

• reboot