Questions tagged [raspbian]

Raspbian renamed Raspberry Pi OS (32-bit) is a family of GNU/Linux operating systems derived from Debian. Version numbering follows that of Debian and the current stable is 11 (Bullseye). Raspbian is the most widely used Pi based distro and the one recommended by the Foundation, who distribute their own customised images.

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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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How to set the SPI comms delay from CS to SCLK?

I am using a Raspberry Pi to communicate with a SPI-enabled device over the 40-pin cable. To the best of my understanding, the Python scripts rely on the SpiDev device. The script uses the xfer3() API ...
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Running Half Life 1 on Raspbery Pi 1 B+

I've been trying to run Half Life on this model of the pi. I am new to raspberry pi and I thought it would be a fun project to try and get Half Life to run on such an older model. I know its ...
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Read from analog sensor through spi from ProcessPoolExecutor

I'm working on a project in which i need to record sensor (current sensor) readings every second, and store these records into JSON file, Also make some calculation on a bunch of data that has been ...
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Is it safe to power a Raspberry Pi Zero W with a Fritz!Box USB-port?

As many others im getting a Zero W for PiHole and i would like to power it using the usb-port of my wifi router. However, im concerned about undervoltage. I read the Zero W wants 1,2A, but usb 2.0 ...
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Fresh installation - pi 2 - wired to LAN, has ip address, but hangs at 'sync to clock' and won't update, or subsequently connect to internet

Had this pi 2 running a pihole for ~ 4years without a problem; First with Jessie, then Buster. Since adding a pi 4 (running Ubuntu mate) to the LAN, the pihole won't connect to the internet (though ...
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Printing a image in the mini thermal receipt printer adafruit using raspberry pi

I have opened the command prompt on a Raspberry Pi and typed the command as: lp -d ZJ-58 -o fit-to-page /home/pi/Documents/image_name.bmp which produces the gibberish printing as follows: Could ...
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How to connect USB CDC devices?

I have a Zebra MC3300XR SERIES RFID reader that support USB CDC, how can i read the scanned RFID programmatically in the raspberry pi? is it possible?!
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Force internet connection via wlan0

I have a Raspberry Pi connected via Ethernet to a local LAN that doesn't have internet. This Raspberry has a static IP fixed as 192.168.1.23 since we need each device in this LAN to have an specific ...
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using hdmi1 with card extender

Can I use HDMI 1 instead of HDMI 0? I Have a pi 400 and have bought an sd card extender so I'm not reaching round the back all the time to change cards. this though stops me from using HDMI0 because ...
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Raspberry Pi 4B turns into Black Screen randomly with SSH working fine

I'm working on a project use Raspberry Pi 4B with Raspbian OS. It runs a python script to display readings from an external USB hardware everyday from morning to night. I'm pretty new to raspberry pi ...
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Use Wifi and Ethernet with different network

I should configure a raspberry to communicate with custom devices via Wifi on an Ethernet independent subnet. On the ethernet side, connect to the LAN so that it can manage all the devices ...
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Noisy sound when using bluetooth HFP with Ofono and pulseaudio

Following everything mentionned here On my Raspberry Pi 4 with Raspbian Bullseye. I have an issue with the incoming and outgoing sound of HFP when calling with my paired phone. I can hear and speak ...
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MoemManager.service stops booting my Raspberry Pi

My Raspberry Pi 3 just stop while boot with message in loft bottom conner ModemManager.service. How to make start my Pi again?
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Connecting to wifi and ethernet at the same time

Device: Raspberry PI 4 OS: Raspberry Pi OS I have a setup pihole to run on my Raspberry PI with the below network setup. Wifi - Connected to Guest Network(Static IP: 192.168.1.56) Ethernet - Connected ...
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Thermal mini printer receipt adafruit printing gibberish

I have written a very simple program in python to print the text value in the mini thermal receipt printer adafruit. Code: # On a CircuitPython microcontroller: import board import busio import serial ...
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Node.js RPI 4B problem with GPIO

I started doing the Node.js and RPI tutorial from w3schools.com. I created a server to control an LED with a button on a prototype board or via http but the LED does not light up. It seems to me that ...
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IR-Keytable support for the variable frequency & modulation

I am working on the RPI-CM4 with the ir-keytable library. I am using the TSMP97000 sensor to read the modulated data from the IR transmitter(Remote). it-keytable library is working successfully with ...
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Samba compressed transfer over network under Raspbian?

I am currently using a Raspberry Pi 3 A+ as a NAS, and the bottleneck is the 100Mb ethernet adapter I am using. Is it possible to configure Samba to automatically and transparently compress/decompress ...
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CM4 USB connection issues

We have rolled our own board for the CM4 and the problem occours when connecting an UMTS stick (Huawei E3531 HiLink) to USB. The CM4 starts to disconnect and reconnect the stick continuously. This ...
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Reason for default keys in /etc/ssh

I just wanted to make a basic image for all my new RPis and I deleted the basic keys in /etc/ssh/ because I thought those are like "example" keys for the first usage. After the deletion I ...
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IR Remote Learning Based on ir-keytable

I am working on the RaspberryPi CM4 module with the ir-keytable library. I have made the setup & run the following command to get the received keys from the external remote. pi@raspberrypi:~ $ ...
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apt issue, unmet libc6/libc-bin dependencies

I was in the middle of upgrading to Bullseye from Buster when my SSH session failed, and I couldn't ssh into the machine anymore. I rebooted it, and now am presented with this problem. I have ...
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mpg123 segmentation fault

I'm trying to play music on a web browser using mpg123. I use Apache as the web server on a Raspberry Pi ZH with no audio devices on it as I don't need any sound to come out of the Raspberry but to ...
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How to save the bluetooth connection type between Raspberry Pi and Android Phone?

I have a Raspberry Pi with bluetooth installed, I'm able to connect to my Android's phone via bluetooth, but it's getting connected as a headset. However, when I go to bluetooth manager on Raspberry ...
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Prebuilt binaries or SDK for Raspberry Pi

I am trying to cross compile GLFW for Raspberry Pi from my Ubuntu 20.04. I am following the suggestion given here - https://stackoverflow.com/questions/19162072/how-to-install-the-raspberry-pi-cross-...
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libcamera stack does not work with Bullseye

On a RasPi4, the HQ-Camera works well with the legacy camera stack, but not with the libcamera stack. I did an update from Buster to Bullseye. $ uname -a Linux raspberrypi 5.10.89-v7l+ #1506 SMP Fri ...
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BlueZ Profile RequireAuthentication=False not working when trying to initiate connection without pairing

Following up from this question: How can I open a connection to my Raspberry Pi over Bluetooth without having to pair? I am trying to connect from my Windows Laptop to my Raspberry Pi over Bluetooth ...
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install display on raspbarrypi 4 didnt work

i had the lite version installed of Raspberry os on my pi 4 - and now I followed this tutorial https://raspberrytips.com/upgrade-raspbian-lite-to-desktop/ to installing a display enviorment - "...
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How can I make my dietpi install readonly?

This is my first post here so apologies if this is the incorrect use but I am very much in need of help. I have a dietpi install on my raspberry pi running pi_video_looper (wanted to use raspbian but ...
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Raspberry Pi doesn't recognize HP PSC 750xi Scanner

I have an old Pi-3 running Stretch. I have what apt-get install tells me is the latest version of everything installed. I plug in an old HP PSC 750xi All-In-One USB printer/scanner. The Pi recognizes ...
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swap file falls off after reboot when move to USB flash

I trying move swap file to USB flash from SD card it work fine but after rebooting swap file falls off, command free -m show swap is 0 I move swap file to USB flash dphys-swapfile swapoff dphys-...
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Non-Internet AP with Pi-Hole issue with internet speed

I'm configuring a network for my IoT devices at home which is used by the wlan0 interface of my raspberry pi. I don't want to give access to internet to this network, and all the devices are going to ...
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Install aquarea2mqtt on Raspberry Pi

Im new on Linux/Raspberry Pi and I have some problem with installing program from a file. Can You help me with that? I need this project implemented in my Home Assistant (to view my heat pomp) https://...
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GDBuss.Error.org.freedesktop.PolicyKit1.Error

I am using a Raspberry PI 3B+ for learning Python programming and some hardware design for PI3. I hadn’t turned it on for a while. Recently, I powered it up and it booted just fine. The second power ...
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Camera driver, updated or removed and now isn't working

My camera was working fine, but now it isn't being recognized anymore. I tried to check if it was enabled on the Raspberry Configuration Interface tab, but the camera option isn't showing anymore. On ...
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Micro Switch code implementation

I'm working on a production counter that would count the material as it would hit the switch and that would be counted as 1. The issue I am having is that the code I wrote is not doing anything when I ...
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What exactly is "libarmmem-${PLATFORM}.so" and how to update it?

I recently got a problem involving /usr/lib/arm-linux-gnueabihf/libarmmem-${PLATFORM}.so: VLC was crashing when calling this library (which overrides memory related functions from libc6), and ...
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RaspberryPi keeps reporting error: dpkg: warning: files list file for package 'xxx' missing;

I have encountered a series of problems, after a week of searching and processing still have no clue. My Pi3B+ keeps reporting errors: "dpkg: warning: files list file for package 'xxx' missing; ...
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Continously running presentation "pauses" after one hour

I have a Raspberry Pi that is connected to a TV on its HDMI Port and to the Network over Ethernet. After boot it automatically logs into the GUI with the pi user and automatically starts a ...
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SD card isn't being detected by raspberrypi 3 B+ or my laptop

Raspberrypi 3 B+ was working yesterday, had the raspbian image flashed onto it and I was able to ssh into it headless from my laptop with no major issues. However, today it didn't boot up, so I ...
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How to do DATA LOGGING using USB in raspi pico

Actually I wanted to do data LOGGING using USB in raspi pico but I don't know how to do. Can someone help me out. I want my data to uploaded on a usb pendrive when I plug it. With pico. And get data ...
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What is the default fstab file?

I was editing my fstab and somehow [spooky music] deleted it. As you can imagine this has caused some problems and I have searched online for the shape of the default file to no avail. Can someone ...
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Is there a way to assign a different local IP address depending of the SD card I'm using for a single Raspberry Pi?

In order to clarify my question - cat /proc/device-tree/model: Raspberry Pi 3 Model B Rev 1.2 cat /etc/os-release: PRETTY_NAME="Raspbian GNU/Linux 11 (bullseye)" NAME="Raspbian GNU/...
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Message printed multiple times when pressing hard button with RaspBerry Pi

I'm trying to print a message every time a button is pressed, and so far it's working fine, but the message is printed several times (somewhere around 4000 times) and I'd like it to be printed only ...
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installing sonic pi

So, now we have followed steps to uninstall and reinstall Sonic Pi. The uninstall was easy. The install has defeated us. We have clicked on the download link. A file downloads. A window pops up saying ...
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BlueZ receive Bluetooth sensor information

Good afternoon, First of all I apologize for asking questions in this thread but this is my first time writing on StackExchange. I am doing a university work where it is necessary through a Raspberry ...
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Which is better to measure voltage and current,INA219 or current/voltage sensors? [closed]

Im doing a DIY battery and after that I want to measure the results and displaying the results in Raspberry Pi. I wanted to know if the measurement could be better done using INA219 or voltage/current ...
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Reverse ssh tunnel stops working after a few hours

I have a Raspberry Pi Zero W (PiZeroW-1, Raspbian Buster)on a local network behind a 4G router with CGNat. To be able to communicate with it from elsewhere I have setup a reverse ssh tunnel that is ...
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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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