Questions tagged [raspberry-pi-os]

Do not use this tag. It was intended for issues common to Raspberry Pi OS, but Raspberry Pi OS - Bullseye is significantly different to its predecessor. Use the version specific tags raspberry-pi-os-buster or raspberry-pi-os-bullseye.

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120 views

Raspberry Pi OS: Alt+Tab switches only between most recently focused windows

I just started my adventure with Raspberry Pi and there's a silly productivity problem for which I can't find a solution online. Basically Alt+Tab shortcut in Desktop switches between two most ...
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6 views

Send USSD command to mobile phone connected via bluez to raspberrypi 4

I just start working with ofono and when I want to send USSD command. when I use initiate-ussd <modem> I get this error: Traceback (most recent call last): File "/home/pi/workspace/libs/...
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0answers
9 views

How to uninstall zram from Raspberry pi 2?

I installed zram from https://github.com/foundObjects/zram-swap but I am experiencing some lag issues.I cant find the command to remove it from Rpi.
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1answer
25 views

Files disappear from sd card after unmount

I have sd card with raspberry os installation that I use with PiZero. I am trying to edit wpa_supplicant.conf from my arch pc. after I connect and mount sd card to pc I can edit file like this: sudo ...
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1answer
2k views

Raspberry Pi not booting "recover4.elf is not compatible"

I've bought x3 Raspberry Pi 4 4GB Model sets a while ago and was very happy with it. I've been working on the one and cloning the same SD-Card onto other 2, so I could have the same system state on ...
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17 views

llvm version 11 and librosa error

Best regards i need to download librosa to raspberry pi so first of all i downloaded virtualenv and created environment and installed llvm with: sudo apt-get install llvm pip3 install llvmlite==0.37 ...
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1answer
66 views

Install Webmin on Bullseye RPi 4B

I'm trying to install Webmin on raspberryOS bullseye 32bits (5.10.87-v7l+ kernel), and the installation get stuck on: "Unpacking webmin (1.983) ..." I already try to install over 2 methods: ...
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1answer
30 views

Switching SD card between Raspberry models

So I'm in the process of setting up OpenMediaVault and Plex on a Raspberry Pi 3B+, and an external HDD via a USB-hub. Can I later just unplug the SD card and HDD, plug it all into a Raspberry 4 B, and ...
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1answer
21 views

Raspberry Pi: Unable to reboot (unable to mount root fs on unknown-block(179,2) - on brand new sdcard/image

I got some new Sandisk 32gb Ultra sdcards installed Pi OS on them etc - but when booting the Pi they gave the error in the title - all the same.
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0answers
16 views

Communication between Raspberry Pie and an ESP8266

I have to send data from the raspberry pie in form of an csv to the esp8266 while both are using the micro python platform to perform. How can I send the data from the raspberry pie to the esp8266. So ...
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2answers
362 views

Blank touch screen after upgrade to Bullseye

I have for many years been using the official Raspberry Pi touchscreen with a Model B+ Pi. I recently upgraded the OS to Bullseye and the touch screen no longer displays anything. When I boot the Pi I ...
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0answers
40 views

Raspberry pi ethernet light blinking a color when connected to laptop

I have received a Raspberry Pi 4 Model B, and have been using it for several weeks. I had installed OpenWRT(21.02.1) on one of my MicroSD cards and had put it into my pi. I don't have an external ...
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1answer
47 views

SSH to/from Raspberry PI to/from ubuntu machine

I have configured SSH on my Raspberry Pi 4 to only accept public-private key authentication. I am successfully able to SSH from a Window's 11 machine to the Pi. First thing that I did was create an ...
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1answer
232 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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24 views

Connection time-out when SSHing, but only on a certain network

I'm a student who recently got a RPi Model 4B to learn more about computers and programming, and I had a connection time-out issue with SSH that only seemed to happen on my network. With some help ...
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35 views

Raspberry PI 4 Chia Farm 20 HDD 2 USB Hubs

I have a huge problem. I have 20 HDD and 2 usb 16slot hubs. And if I connect the two hubs than everything is fine and works fine if the total number of hdd is over 19 rasbian OS 64 bit disconnects all ...
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0answers
28 views

Raspberry (OS) awfully unuseable with remote keyboard

I have this now tried with two different wireless keyboards and on Raspberry Pi 3 B+ and 4 (4GB) as well as the 400. All three with the latest update. When I want to use a remote keyboard (with a ...
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2answers
47 views

Can I turn On and Off my Raspberry Pi 3B+ on a specific time?

I have my Raspberry Pi 3B+ powered via Solar Panel. And I know that Raspberry Pi especially 3B+ have low power consumption unlike any other Raspberry Pi version. Though Power Consumption was not that ...
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0answers
15 views

A transport exception occurred error

Hi guys I am really having a difficult time to fund out why I can't connect to my raspberry using the Raspi check app in android. I have set up a pi hole that is working fine, I can connect via putty ...
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1answer
32 views

Can't connect Edge Impulse project from Raspberry pi 3

I wanted to connect the edge impulse audio classifier model from raspberry pi 2 and OS I am using is Raspbian lite. I got an error, [SER] Using microphone hw:1,0 Failed to initialize Linux tool Error ...
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0answers
70 views

How to install RaspberryPIOS on WSL

I am trying to install Raspberry Pi OS on Windows subsystem for linux (WSL), but I do not know how to install it. Could you tell me how to install it or tell me good homepage instructing installation? ...
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0answers
28 views

Slower boot time

I have a raspberry pi 4b 8gb variant, using official raspberry pi 4 psu , with sandisk ultra 32 gb micro sd card. The problem is the boot time it take 6-7 minutes to boot. And while running it ...
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1answer
49 views

spi_xfer unable to send more than 256 bytes in pigpio module , any other instruction or another way to run it

0 I'm trying to communicate with ADC via SPI using "pigpio" library. Basically I'm trying to read an ADC channel data over there i have to send 0x0800 but spi_xfer is not take more than 256 ...
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2answers
34 views

Is there a way to transmit live voice through radio without a soundcard on raspberry pi 3

Is it possible to transmit live voice through raspberry pi 3 without a usb soundcard I only have a hradset with a mic And I am a beginner If possible let me know the answer in a simple way Thank you
1
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3answers
128 views

MCP23008 I2C bus device address by "i2cdetect -y 1" is not stable

When I connect the GPIO expander MCP23008 to the raspberry pi 1 model B+ via I2C, the address of the MCP23008 on the raspberry pi keeps switching between 0x20 and 0x21, and sometimes it's not even ...
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1answer
31 views

RasperryPI remote access

I recently set up a rasperberryPI for a client, which went well. This raspberryPI has its own wireless network which is used to interact with the device. I've read in threads that it's possible to ...
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1answer
21 views

Shutdown/reboot Raspberry using a pin other than pin 5

Is it possible to use another pin instead pin 5 (GPIO 3) to shutdown/reboot raspberry by means a push button? Any idea? Thanks in advance.
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0answers
37 views

Power requirements for water flow controller project [closed]

I am planning a project to start a pump when level in a tank goes low and measure the flow as the pump fills the tank. Conversely, when the level in the tank goes high, the pump is to be stopped. This ...
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2answers
934 views

Can't connect to Pi on local network via raspberrypi.local from Windows

When I first got my Pi about six weeks ago, I could follow the setup instructions easily, and connect to the Pi using raspberrypi.local (without the Bonjour service installed on Windows). However, for ...
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0answers
28 views

Raspberry Pi 4 Model B 7inch Touch Screen Problem

I connected a Raspi v1.1 2015 Touchscreen to Raspberry Pi 4 Model B. I installed "https://github.com/pimoroni/python-multitouch" library and trying to get pixel points of touched points on ...
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0answers
23 views

Raspberry Pi 7" Touchscreen will flip with lcd_rotate=2 but Ends Up Rotating Back

My Raspberry Pi 7" Touchscreen will flip with lcd_rotate=2 but ends up flipping back to its original setting after it goes to a sort of weird white screen. How do I fix that?
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1answer
59 views

Neopixel with raspberry pi

I am using a neopixel for my raspberry pi project. I am trying to control 30 pixels and the strip is 20cm long. Can I use it just by using the pi's 5v pin? Also if I it is possible, how long should ...
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0answers
54 views

Very slow USB flash drive on Raspberry Pi 3B+

Here are a few tests with an older Verbatim micro SD-card and the flash drive. # write speed test: sudo dd if=dev/zero of=temp.txt bs=1M count=1024 oflag=direct # Read speed test: sudo dd if=temp.txt ...
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0answers
39 views

Raspberry Pi 3B+ in endless loop boot on SSD

I installed 2021-10-30-raspios-bullseye-arm64-lite on my SSD. The booted, ran through some common options with raspi-config, like localization. Rebooted, as requested. Then I did a sudo apt update, ...
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2answers
1k views

3.5 Inch RPi LCD with colors problem

I've just installed a 3.5 Inch RPi LCD (A) V3 (XPT2046 Touch Controller) on my Raspberry Pi 3 Model B+ and I'm having problems with the colors of the display. I'm attaching an image to show you. I'm ...
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1answer
125 views

open GUI terminal automatically using systemd service file

I have a shell script that i run with a systemd service file. The shell script executes a python script. The service file works and the script is executed, but i cannot see a GUI terminal, in order to ...
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1answer
5k views

Raspberry pi 4 - Doesn't read sd card

I am trying to boot noobs, or raspberry os, or lineageos, and i am getting some errors Error when using sdcard "Failed to open device: 'sdcard' (cmd 371a0010 status lf0f0001)" booting NOOBS ...
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0answers
22 views

Tkinter's 'create_text' inconsistent between raspberry pis

This one has me completely stumped, hoping someone can point me in the right direction! Here's my MRE of the issue: from tkinter import * root = Tk() w = 200 h = 200 c = Canvas(root, width=w, ...
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0answers
14 views

How to install completely (with SDL and so) Pygame 2 on a Raspberry

I want to install Pygame 2 on a Raspberry Buster. I am using OS version 5.10.11. It seems that I need to update SDL to be compatible with Pygame 2. Does anyone know the process for updating the ...
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2answers
29 views

Raspberry Pi 4B duplicate Rx pins

Can I duplicate Rx on raspberry? If its possible how it will be? I need to connect 2 device which connect via gpio tx/rx.
284
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6answers
1.3m views

How do I set up networking/WiFi/static IP address on Raspbian/Raspberry Pi OS?

I have followed (any one of hundreds) tutorial, and it does not work. How do I set up networking/WiFi/static IP address on the Raspberry Pi? After the Foundation introduced the dhcpcd networking ...
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1answer
21 views

sudo journalctl -f - Why i dont see latest news?

today i have 9 november - but logs communicats show me only info from 8 november (in polish november=listopad --> lis ) and i don't understand why and how i can repeired this ... any tips? $ sudo ...
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0answers
23 views

Why am I getting "bash: javac: command not found" after supposedly installing jdk17.0.1 on Raspberry pi OS 64 bit?

So I followed The instructions here https://linuxhint.com/install-oracle-java-jdk-16-raspberry-pi/ Except I did so entirely on the gui of Raspberry pi OS. I downloaded the jdk file from the same ...
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0answers
92 views

RaspberryPI 4, Gpio module, malloc() : corrupted top size

Hello Everyone reading, So my issue is that I have tried running the NodeJS on my Raspberry Pi 4 script that has been posted on the W3School site, which was supposed to flash a LED light, here it is ...
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2answers
292 views

Writing to framebuffer on C is very slow (Raspberry Pi) [closed]

I want to make a very intensive simulation and need the most power the Raspberry Pi gives me. So I flashed Raspberry Pi OS Lite (without Desktop) onto an Micro SD Card and wrote to the framebuffer in ...
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0answers
78 views

Enable cgroups v1 in RaspberryPi OS

i am using a Raspbi 4 with the newest OS 32bit lite. The OS is using cgroups v2 Due to some software limitations i need the cgroups v1. I've added cgroup_enable=cpuset cgroup_enable=memory ...
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0answers
98 views

How can I fix dphys-swapfile?

I was trying to download some apps from pi apps, and then this output came in pi-apps: Before dpkg, apt, or Pi-Apps will work, dphys-swapfile must be fixed. I don't know, what this means exactly. Also ...
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1answer
100 views

unable to install drawnow package

when I try to install the drawnow package, there are some mistakes. I type sudo pip install drawnow it returns pi@raspberrypi:~ $ sudo pip install drawnow Looking in indexes: https://pypi.org/simple, ...
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0answers
34 views

Can Not Install crossbuild-essential-arm64 On RaspberryPi 4 Model B: Held Broken Packages

I am attempting to install crossbuild-essential-arm64 on my Raspberry Pi 4 Model B, running Raspbian. However, I am getting an error saying "you have held broken packages", along with a list ...
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1answer
90 views

Sane on Raspberry Pi 3 doesn't find ScanSnap iX500

I would like to install a scanserver on my Raspberry Pi 3 following these instructions. The operating system is the current Raspberry OS: "2021-10-30-raspios-bullseye-armhf-lite". The step ...

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