Questions tagged [raspbian]

DO NOT use this tag for new questions; Identify actual OS e.g. Raspberry Pi OS-Buster 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.

Filter by
Sorted by
Tagged with
0 votes
1 answer
21 views

Raspberry Pi and bscXfer/bsc_xfer not reliably passing data between Arduino Master

Data passed between a Raspberry Pi, configured as an I2C slave device, is not reliably transmitting between an Arduino I2C bus master device. Data is consistently getting lost, and slave responses are ...
0 votes
0 answers
8 views

Possible to connect non-local rasberri pis to create mesh network?

Hello I am new to Raspberry Pi's and need to use them for my school project. Each of my group members were given one raspberry pi from the school, and we wanted to make a mesh network with them for ...
0 votes
1 answer
2k views

dphys swapfile error while updating

So I recently got a new raspberry pi 4 and I went to update it and ran the following commands: sudo apt-get update and sudo apt-get upgrade. The update command ran perfectly fine but when I ran ...
0 votes
1 answer
134 views

Killing Power at GDM3 Login

I understand that killing power to a running pi without first shutting down can damage the SD card. Can Killing power at the GDM3 login screen also damage my SD card or do I need to run the GDM3 ...
0 votes
0 answers
18 views

How to use raspicam C++ lib on bullseye?

My camera is detected as i checked via the command line and my opencv & raspberry paths are well defined in geany using 'set build commands '.
0 votes
1 answer
3k views

Sending Data from Raspberry Pi to Azure IoT Hub

I have set up a temperature monitoring system using a Raspberry Pi 3 (Raspbian), MAX31855 Thermocouple to Digital Amplifier and a Thermocouple. I have been able to get the hardware working and ...
3 votes
2 answers
5k views

Bluetooth discoverable mode is automatically turned OFF

I want to set up the Bluetooth on boot so I can connect to it whenever I want with a device which is not trusted by the Raspberry Pi Bluetooth. I set up the Bluetooth on boot on my Raspberry Pi this ...
12 votes
2 answers
5k views

How to send audio to BOTH headphone jack and HDMI simultaneously?

I am needing to send audio through both HDMI and the 3.5 mm headphone jack simultaneously. I have not been able to find anything on this. Is this even possible?
0 votes
0 answers
33 views

RPi using multiple heads?

I was wondering if anyone has used a raspberry pi with more than one RPi hat module. I was hoping I could use a relay board with the POE heads at the same time. I would attempt this right now but I do ...
0 votes
1 answer
68 views

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-...
1 vote
1 answer
469 views

Raspbian crashes when connecting to AP

Following Raspberry Pi's own tutorial for setting up an access point (https://github.com/raspberrypi/documentation/blob/master/configuration/wireless/access-point.md) from a clean Raspbian Buster ...
0 votes
2 answers
29 views

Raspberry Pi / I2C Slave / bsc_xfer()

Good evening. I am trying to use a Raspberry Pi Zero W 2 as an I2C Slave. Trying to implement some of the solutions using bsc_xfer in this forum, I simply cannot get any data back and forth to the ...
1 vote
1 answer
742 views

HDMI projector doesn't detect my PI

I have a Raspberry Pi 2 model B v1.1. I wanted to set It up for the first time. I loaded the Raspbian Lite .img file into my 4Gb micro SDHC class 10. I put It in Its slot. I connected It to an EPSON ...
2 votes
1 answer
605 views

Raspberry Pi4 error capturing image with OpenCV, image comes half green

I am using a common logitech webcam with OpenCV. When I was using my RPI3 I had no trouble, but I wanted to improve my system so I bought a RPI4. Upon setting up my system with RPI4 using raspian ...
0 votes
3 answers
92 views

No enough space , I cant even open the Raspberry?

Please help me, my Pi has no space , I tried to delete a lot of packages , but it remain the same , I tried these commands : sudo apt autoremove sudo apt autoclean sudo apt-get autoclean sudo apt-get ...
1 vote
2 answers
320 views

Raspbian broken bootloader package

I've just tried to update my Raspberry Pi 4 and am getting the error: Unmet dependencies: libraspberrypi0 : Depends: raspberrypi-bootloader ( = 1.20210108) but 1.20201022 is installed Running the ...
0 votes
0 answers
18 views

VGA Output Not Working

When I Used VGA On My New Monitor It Says Something Along The Lines Of: Cant Open Display Mode, Optimum Resolution 1366 by 768 60hz. Im Using A Raspberry pi 4 Model B 4GB Ram Heres an image:
0 votes
2 answers
95 views

Timer in Raspberry Pi with micro seconds

I have a Raspberry Pi 4 and I use Python. Every 100us, I need to read ADC value and send it to a laptop via an Ethernet cable. I am looking for a solution about the timer with high accuracy, so that ...
0 votes
0 answers
16 views

Can I fix the port for USB devices in raspberry pi?

I have a raspberry pi and two QR code scanners, scanner1, and scanner2, I want to connect both scanners with the raspberry pi but at specific ports. Rasberry pi has four USB ports 1, 2, 3, and 4 ...
0 votes
1 answer
68 views

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 ...
1 vote
1 answer
51 views

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 ...
3 votes
2 answers
1k views

Raspberry Pi hdmi black screen (SSH works fine)

My raspberry pi will boot fine and I can access via SSH however when connected to HDMI it is just a black screen that appears. I notice that the display screen resolutions are alternating back and ...
0 votes
0 answers
12 views

Raspberry Compute Module 4 with Wi-Fi Booting Error

I have some question about RaspberryPi CM4 Wi-Fi module, 2 GB RAM, 32 GB Storage. First, I am using Cm4 with Wi-Fi and without Wi-Fi Modules for some projects with special IO Board. Second, the cm4 ...
0 votes
0 answers
123 views

Raspberry pi 4B Error looking up passwd struct for uid 1000: Input/output error

i´m getting this strange and crash raspbian os error with a frecuency of 1 time every 4 days. My raspberry pi 4B its always running and of course pluged in, with the original charger, 1 time every ...
0 votes
0 answers
15 views

virtually boot my rpi-disk in mac env

I have an SSD disk with Raspbian on it. When I plug it into my MAC it only shows the boot partition (not the filesystem that you get once booted into the actual raspbian). Is there a simple way to ...
0 votes
0 answers
24 views

Why can my Pi not "detect" my 3D printer, but my laptop can?

Printer mainboard: BTT SKR mini E3 V3.0 running klipper firmware https://github.com/bigtreetech/BIGTREETECH-SKR-mini-E3 Long story short, I accidentally powered on my 3D printer while unplugging the ...
1 vote
0 answers
219 views

Change the CPU Core Voltage from terminal

I was wondering if anyone is aware of how I can change the CPU Core Voltage of a Raspberry Pi using system calls from the terminal. I know that we can do this by setting the over_voltage parameter in /...
0 votes
2 answers
1k views

Cannot install pi-apps

So I've recently tried to install pi-apps using: git clone https://github.com/Botspot/pi-apps and it cloned, but when I used: /home/pi/pi-apps/install it gave me this error: The command 'sudo apt ...
0 votes
1 answer
539 views

Boot folder writing permission

I would like to write file raspbian boot folder via samba file server. But when i try to do it, raspbian doesn't allow me to writing file. How can I solve this problem. I have tried chmod command etc.,...
2 votes
1 answer
224 views

Radiotap headers and Raspberry Pi 3

I am new to this area and hence the question. I want to have Radiotap headers in the network data captures with Wireshark. I wonder if that is even possible in this case: Configuration: Raspberry Pi ...
0 votes
1 answer
953 views

PiVPN Routing Problem

I've recently installed PiVPN on a newly created Pi system and I am able to connect to it ok from a remote client that I created. The problem is that although I'm able to access the node where my VPN ...
0 votes
1 answer
89 views

remote port forward or local port forward

I have a raspberry pi at a remote site which is connected to the wider internet using a USB 3g/4g modem (its very slow, but works) I have root ssh access to this device, RPi is accessible via sitename....
1 vote
1 answer
274 views

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; ...
0 votes
1 answer
186 views

Follow up to "Reverse Expand Pi root FS"

I need to reduce the size on my Raspberry Pi boot SD card. I have read this posting Reverse the expand root FS and it embedded references, but as a near novice, I have a couple questions. I can ...
0 votes
1 answer
45 views

Trying to connect to webserver on pi (as access point)

I have a raspberry pi which is running some webpage on a port. The pi is accessible through it's wifi (configured as access point). Everything works fine, when I connect my PC to the ssid hosted by ...
0 votes
1 answer
102 views

How do I get Docker host mode networking to work on a Pi?

I have Docker running on my Pi running Raspbian right now, so far it's okay but I want to enable host mode networking so that I can obtain the source IP addresses of requests going to my container. ...
2 votes
11 answers
35k views

Raspbian, no audio HDMI, have tried all the troubleshooting I can find

I know this is a noob question, so I apologise in advance! I've been googling for hours, have ran through all the steps for troubleshooting sound through HDMI; un-commenting the config file sound ...
2 votes
3 answers
4k views

Install nextcloud on Raspbian

Can I install nextcloud on Raspbian? (I have a RPI3) I know that a image of it already exists, but I would want to know if something installed from tarball. If so, what web server would be better (...
0 votes
0 answers
16 views

Can't see Raspberry Pi zero W in gadget mode in device manager Windows 11

I've downloaded Raspbian Lite x86 with official Raspberry Pi Imager and flashed it on 8GB sd card I've followed all the steps on https://gist.github.com/gbaman/975e2db164b3ca2b51ae11e45e8fd40a 1.) ...
0 votes
0 answers
160 views

Connect to wireguard server running on raspberry

I have installed Wireguard Server on my Raspberry Pi using pivpn. Everything works well except for one thing. The Raspberry server has an IP address of 10.6.0.1. I have a simple socket messenger ...
2 votes
5 answers
6k views

Wifi after upgrade to bullseye is blocked by rfkill

I recently updated my RPi-3B to bullseye. Since then I am not able to connect it to my wifi. It shows the following message when I login Wi-Fi is currently blocked by rfkill. Use raspi-config to set ...
0 votes
1 answer
2k views

Raspberry Pi 2 and SH1106 OLED

Abandoned post by Unregistered user. I am trying to get a cheap SH1106 1.3" OLED from eBay working with my Raspberry Pi 2. Frm the eBay description, it says that it supports "I2C/IIC ...
0 votes
2 answers
5k views

RPi 3 B+ will not connect to hidden Wifi

I have two devices, both are B+, one is a rev. 1.2 the other rev 1.3. I have configured one SD card and when used in the rev 1.2 it connects without issue to the hidden wifi network. However, when ...
0 votes
1 answer
366 views

cups-pdf - not printing PDF to Pi

I would like to use a Raspberry Pi as a virtual pdf printer. I ran sudo apt-get install printer-driver-cups-pdf and logged into 192.168.1.225:631 which is the static IP of my Pi. Afterwards I created ...
3 votes
1 answer
898 views

Pihole: Redirect domain to ip (Hostrecord doesn't work)

Pihole is like an own DNS Server. So it must be possible to edit and add domains. I want to connect the domain my.domain with the ip my.own.ip.adress. That means I enter my.domain to my browser and ...
1 vote
1 answer
768 views

UDEV issue.. USB triggers script but USB doesn't mount

So I have the UDEV rule: ACTION=="add", SUBSYSTEMS=="block", KERNEL=="sd[a-z]1", RUN+="/usr/local/bin/script.sh" This is saved in /etc/udev/rules.d/10-usb.rules I want it to trigger the script ...
2 votes
1 answer
787 views

How to write 16 bit data to device address using the i2c wiringpi lib

I am trying to write 16 bit data to i2c device . As there are no registers specified to write to the slave device, I am not able to use the built-in wiringPiI2CWriteReg16 Api. Can some one guide me ...
6 votes
3 answers
3k views

Building Open CV fails on Raspbian on make at 61%

I am trying to install OpenCV on Raspbian by following these steps: http://mitchtech.net/raspberry-pi-opencv/ Everything works up until I do a "make". It gets up to 61% and then I get the ...
1 vote
2 answers
546 views

Issue when installing python-package virtualenvwrappe

I am new to Linux and Raspberry Pi, so I am sorry if this is a trivial question or if I did not mention some important information. To my problem: I have a fresh install of Raspbian Stretch on a ...
1 vote
2 answers
4k views

Raspberry pi 4 no hdmi signal

I have recently bought a Raspberry Pi 4 (4 GB version) and its' original power adapter. I used Balena etcher to flash my sd card, which I have used in my previous raspberries and works properly, but ...

1
2 3 4 5
145