Questions tagged [ubuntu]

Ubuntu is a Linux operating system derived from the Debian distribution.

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Distorted Images from Raspberry Pi Camera Ubuntu 20.04

Hardware: Raspberry Pi 4 Model B Ubuntu 20.04 64-bit Raspberry Pi Camera V2.1 I'm using OpenCV's VideoCapture to capture images using the Raspberry Pi camera module, as the picamera module isn't ...
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Dhcpcd.conf confusion [closed]

I read articles but am confused I used interface and named it wlan0 and used auto wlan0 further in the page I am looking for my WLAN to connect to my router or even my eth0 and create a LAN on either ...
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15 views

How to build initramfs for custom kernel from cross-compile machine

I'm trying to start my Raspberry Pi with a custom 5.10.y cross-compiled Kernel for https://cdimage.ubuntu.com/releases/20.04.2/release/ubuntu-20.04.2-preinstalled-server-arm64+raspi.img.xz with ...
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Does WiFi sniffing work on the Pi 4? How?

Is there a trick to getting WiFi sniffing working on the Pi 4? I can get it to display its own traffic - either in tcpdump or Wireshark - but not traffic for other network nodes. I have tried ...
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Ubuntu 20.10 for pi4: There was an error creating a child procsess. fix

This is what happens when I launch the terminal There was an error creating a child process So I have been using the Ubuntu terminal on my raspberry pi 4 model b 8gb with Ubuntu for a couple moths ...
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Trying to make PI 4 into headless VPN, WiFi hotspot and provide VPN connection to a VOIP adapter [closed]

I’ve looked at this board and done quite a few Google searches and haven’t found what I’m looking for. I have read a few replies to posts that say the writer should include more information and be ...
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Idle Model 4B running > 115 C = damaged?

So today I noticed a 4B I was bringing up on Ubuntu 20.04 (server) was actually crashing due to heat. I managed to stop docker etc, and captured CPU measurements of ~115 C. I was purchased late last ...
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162 views

RealVNC Server on UBUNTU 20.10 (ARM64) on Raspberry Pi 4

RealVNC only provides a 32bit app for Raspberry Pi OS (32bit) and not a 64bit native application, at least for now. I'm using Ubuntu 20.10 on my Raspberry and need to use RealVNC to remotely access ...
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Ubuntu 20.10 aarch64 (Raspberry Pi CM4) how do I access 1-Wire devices?

Running Ubuntu 20.10 aarch64 (Raspberry Pi) on a Compute module 4 Am scratching my head on how do I access 1-Wire devices? I've tested by DS18B20 sensor using Raspberry Pi OS and it works by enabling ...
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official POE HAT with fan on ubuntu server for raspberry pi [duplicate]

How to setup fan on ubuntu server for raspberry pi4b with official POE HAT with fan? it seems the default behavior is spin and stop on an interval, or by default is temperature based behavior? OS: ...
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Install melonDS on a raspberry pi

I'm looking to install a great DS emulator on a raspberry pi4. It's called MelonDS and it is available for Linux. I attempted to install on the 64bit ubuntu image. This is what I tried. sudo snap ...
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1answer
84 views

Unable to detect NVMe M.2 ssd in raspberry pi 4 8gb

Is it possible to use an NVMe M.2 as external storage on a Pi4b 8GB? I have the following PCIe device: samsung NVMe PCIe 3.0 SSD 970 Evo plus, 500 gb + external hard drive enclosure with a C to A ...
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How to get a2dp on Ubuntu server

I have Ubuntu server installed because of 64 bit support. Most of the solutions out there rely on bluealsa, which is available on raspbian only. Is there an easy to use Ubuntu option?
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MATE desktop doesn't work correctly

So, I decided to install the KDE Plasma desktop and see how it would go. I installed it (all dependencies took up 1.3GB of storage) and tried it out, and didn't like it too much. It takes about ~100MB ...
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66 views

Raspberry Pi 4 8gig Ubuntu server 20.10 wifi power management and interface down

I am trying to get my Pi 4 setup with Ubuntu 20.10 server using WIFI. I have setup the WIFI correctly at the time of creating the image. I know this because I have a RBI 3B+ that I have done the same ...
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Black Login Screen

0 So on my Raspberry Pi 3B, I currently have Ubuntu MATE 20.04.1 installed. I wanted to try out different desktop environments, so I installed xubuntu-core and lubuntu-core with all the recommended ...
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Raspberry Pi freezing at boot during CloudInit after installing Lubuntu

Raspberry Pi Specs: Raspberry Pi 4 Model B (4GB RAM) 32GB SD card with Ubuntu Server as the OS Canakit case Canakit fan Three heat sinks The Problem I started with a freshly installed version of ...
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Spotifyd in docker on Pi4

Has anybody got spotifyd working in a docker on a Pi4? I tried https://hub.docker.com/r/ggoussard/spotifyd but it is not working. Running ubuntu server arch reports aarch64. But only the armhf version ...
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116 views

Good KDE distros for RP4?

I’m looking to work with a KDE distro on my RP4. I’m most familiar with the Ubuntu family but it doesn’t seem Kubuntu has an ARM image. Fedora has a KDE spin but not sure I want to go that route just ...
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67 views

How do I turn off a raspberry pi without use of desktop?

I basically softlocked my raspberry pi 4 8gb using ubuntu when I attempted to put a shell file on my taskbar. I used nano to put scrot in an .sh file for easy screenshots, and when I tried to put it ...
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Sensehat apt package on Manjaro ARM? Insights?

First post on here. I have a Raspberry pi 4b+ 8GB that I am super happy with. I've been messing around with different operating systems on this device and I find that the Manjaro ARM distro is really ...
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1answer
44 views

HDD with separate power supply randomly unmounts

I have a very strange issue with external HDD (4TB) attached to my rpi 4. External drive has it's own chassis with power supply. I chose this chassis especially for my rpi project in order to prevent ...
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19 views

Best way to get “Ubuntu”-like window shortcuts?

I am looking for a simple way to set/use the same window management shortcuts as in Ubuntu (e.g. Super+LeftArrow => fill LH screen). A more complete list can be found here: https://itsfoss.com/...
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Restoring missing Grub/Splash screen

On MATE Bionic, I remember there is the screen with the MATE logo and the five dots. I kinda liked that. I upgraded to 20.04 after flashing 18.04 and now it is missing. I don't have problems in ...
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33 views

ubuntu 18.04 server official release

Does anyone know where i can download the OFFICIAL release of Ubuntu 18.04 server for the pi4? All I can find on canonical's website is Ubuntu 20, which is incompatible with the software i need to run....
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IP Camera Ethernet Direct Connection

I've been struggling with this for the past 12 hours. I am trying to connect my IP Camera to my RPI running ubuntu that's on a cellular hotspot wifi for internet. I cant seem to get my camera to ...
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1answer
159 views

firmware bug bootloader left irq enabled bank 1 irq 9 and boot fails

I updated the packages on my Raspberry Pi 2 (running Ubuntu Mate 20.04) by using apt update and apt dist-upgrade. Everything went smoothly. Then I restarted, and got the following error during the ...
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1answer
271 views

Ubuntu 20.10 and GPIO

I have trouble installing RPi.GPIO library on Ubuntu 20.10. I run apt-get update and apt-get upgrade then apt-get install python python3 python3-pip python3-dev everything went ok. Then I run pip ...
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2answers
182 views

GPIO not working on Raspberry PI 4 4GB

I have a RPi 4 running Raspbian with the Ubuntu Mate desktop environment, whenever I try to use the Wiring Pi library through a C script, to doesn't work at all. On using the gpio readall command I ...
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1answer
374 views

RPI4B Ubnutu Server 20.10 wifi setup

I recently installed Ubuntu Server 20.10 on my RPI 4B and cannot get wifi to work. I followed the instructions here, here, and here. When I attempt to setup wifi via wpa_supplicant (the last link) ...
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1answer
196 views

Adding A Desktop Environment To Raspbian/Raspberry Pi OS Lite

I am planning to make a mini NAS cum Pi Hole and Desktop Computer (For Emulation and Surfing) on my Raspberry Pi 4. I plan to install a desktop environment over Raspberry Pi OS, probably something ...
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68 views

Streaming video from OpenCV with GStreamer over UDP to PC

I'm trying to stream a video that has been processed by OpenCV using GStreamer over UDP from a RPi4 (Ubuntu 20.04 LTS 64bit without any GUI) to a PC (Ubuntu 18.04). I'm sharing Wifi connection to the ...
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Ubuntu MATE fails with GDM3

I wanted to try GDE so I changed the display manager to gdm3. I rebooted to update the changes and now when it boots it is stuck. It sometimes is stuck at wait until snapd is fully seeded or gdm....
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39 views

Ubuntu on Pi 4 — How to enable lan over usb-c?

I want to activate lan over USB-C on my Raspberry Pi running Ubuntu 20.10 Is it possible? I have seen guides for raspbian but (https://www.hardill.me.uk/wordpress/2019/11/02/pi4-usb-c-gadget/) but ...
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67 views

Ubuntu 20.04 'Focal' cannot find all I2C devices via i2cdetect; it get a few, though

This is puzzling me: I use Ubuntu 20.04 'Focal' on a RPI CM4. When I run i2cdetect -y 1 to list the connected I2C devices on /dev/i2c-1, I get a few addresses back that correspond to the custom PCB I ...
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1answer
699 views

OpenGl 3.3 on Raspberry Pi 4 8gb

Run OpenGl 3.3 on Raspberry Pi Good evening, When I run Blender (I don’t know, I suggest it is Blender 2.8 (in Ubuntu), because in normal Raspbain OS, with Blender 2.79 it works out) with my Raspberry ...
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22 views

Bluetooth retransmission

I'm doing a project of automation, and I would like to implement a bluetooth "retransmitter" for sound. I'm currently using Raspberry PI 4 (4gb ram) with ubuntu desktop client 20.10 This is ...
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26 views

Deconfigured locales for libc6 - help!

So, I was trying to install firefox 81 on Ubuntu MATE 20.04. When I was trying to, it was saying libc6 needed 2.32 but I had 2.31 installed. So I decided to look up where 2.32 was an attempt to ...
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32 views

Installing FireFox 80

I installed Firefox 83 and it crashes all the time whenever I try to sync my Firefox profile. This results in the software not being able to run correctly because it always quits before it can do ...
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1answer
101 views

Sense Hat with Ubuntu

I was wondering if it is possible to use the sense hat on ubuntu. I recently bought a pi 8gb and found out that raspian is only 32 bit thus would not allow me to use all 8gb of ram so I switched to a ...
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1answer
360 views

Default audio output to HDMI

I have an RPi4 installed with ubuntu20.10. I connect it to a display(TV) using an HDMI cable. The problem is the output is by default set to a 3.5mm jack. I override that by running the raspi-config ...
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1answer
29 views

Expanding boot partition for Ubuntu MATE [closed]

How do I expand the /boot_ub (Ubuntu MATE) partition? I want to upgrade to 20.04 to get some support for MATE but I can't upgrade because the partition is almost full. I tried to remove old kernel ...
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280 views

Can't run raspistill on Ubuntu 20.04 (rpi-4)

My system Distributor ID: Ubuntu Description: Ubuntu 20.04.1 LTS Release: 20.04 Codename: focal Raspberry: Raspberry 4B Raspberry Camera: V2.1 $ uname -a: Linux ubuntu 5.4.0-1022-raspi #25-...
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71 views

Ubuntu Server 20.04.1 32bit vs 64bit on RPi3 Model B

I want to use my RPi3 Model B as web server (classic LAMP stack + python, maybe other things too) where I will host my own web-based projects. I'm now deciding which OS to run; I have tried following ...
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43 views

Playing from audio from udp using ffplay returning error [Could not initialize SDL - No available video device]

Ive been attempting to play audio from a udp connection using ffplay (pi4 ubuntu) and have been receving Could not initialize SDL - No available video device (Did you set the DISPLAY variable?) as an ...
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51 views

Raspberry Pi 4 with Ubuntu freezes when dragging file to another directory

I have some files I downloaded onto my desktop but when I try to drag them to another directory in the file manager, the pi freezes and I have to unplug and reboot it. This has happened 3 times ...
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100 views

Tensorflow on Raspberry Pi with Ubuntu 20.04

I've installed Ubuntu 20.04 on a Raspberry Pi. Both my Ubuntu and Python3 installations are 64-bit. I'm now trying to install Tensorflow so that I can run (not train) a model. I've tried various blog-...
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116 views

Installing Vuze on Raspberry Pi 4 (8 GB)

I've trying to install Vuze on Raspberry Pi 4 8GB with Ubuntu Mate 20.10 OS and it just doesn't work, i'm getting errors about that it has some libraries missing and that it cannot read .so file. Does ...
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19 views

Problem booting Ubuntu Core

I used the Raspberry Pi Foundation's Imager for the Raspberry Pi on MacOS. I successfully flashed ubuntu core 20.04.1 and put the card into the pi. At first, it showed the ubuntu logo with 'Core' for ...
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1answer
38 views

“last reboot” command not returning correct date

When I run "last reboot" on my pi (running ubuntu) it returns "Fri Jul 31 17:11" which is not at all the date, however, "date" returns the correct date it is currently &...

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