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.
165
questions with no upvoted or accepted answers
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Why doesn't extract-vmlinux work with Raspbian's /boot/kernel*.img?
To monitor if a reboot is necessary, I wanted to compare the version of /boot/kernel*img against the version of the running kernel.
To get the kernel version of a compressed linux kernel image (...
- 1,152
2
votes
2
answers
362
views
Headless Wi-Fi setup without the RPi Imager: bootfs/wpa_supplicant.conf not supported since Bookworm
From the docs:
Previous versions of Raspberry Pi OS made use of a wpa_supplicant.conf file which could be placed into the boot folder to configure wireless network settings. This is no longer ...
- 21
2
votes
4
answers
140
views
Suitable Linux distribution for Raspberry Pi B+
What would a suitable OS (Linux distribution) be for an old Raspberry Pi B+ (2012, 512 MB RAM)?
The latest official OS comes with Chromium which doesn't work. It is also very slow.
It will be running ...
- 21
2
votes
2
answers
92
views
Can't find Ip of raspberry Pi board
I want to connect locally Raspberry Pi 4 model B via ethernet with GUI.
I go with this instructions: https://howchoo.com/pi/find-your-raspberry-pis-ip-address.
But command sudo nmap -sn 192.168.1.0/24 ...
2
votes
0
answers
423
views
C# .NET Core application cannot open serial port
I'm running a .NET Core application on Raspberry Pi OS (32-bit Debian).
pi@raspberrypi:~ $ cat /etc/os-release
PRETTY_NAME="Raspbian GNU/Linux 10 (buster)"
NAME="Raspbian GNU/Linux&...
- 175
2
votes
0
answers
1k
views
How do I get back to GUI?
Recently my RPi started switching to a terminal on boot. I cannot get out of it and when i boot it says "Time Synchronization error" I've tried setting it manual, automatic and nothing has ...
- 21
2
votes
1
answer
184
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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 ...
2
votes
0
answers
707
views
Raspberry pi 4 doesn't detect i2c devices
I am working on a gas flow sensor SFM4100. It's communcation protocol is i2c. And according to gasses bus adresses are changing. For o2 gas, address is 2.
When I connected the all pins according to ...
- 49
2
votes
0
answers
143
views
No Recommended Software menu after updating and upgrading
I'm a beginner using a Raspberry Pi 3. I ran the commands, sudo apt-get update and sudo apt-get dist-upgrade, rebooted and logged back in and there is no menu for Recommended Software.
I also ran the ...
- 21
2
votes
0
answers
47
views
Recommened way to ensure Raspberry Pi connectivity
what's the recommended way to ensure connectivity throughout the time?
I'm using wifi in this case, on a Raspberry PI 4 w/ Raspbian 10 buster.
I noticed that it's losing connectivity randomly after ...
- 121
2
votes
0
answers
608
views
Enable desktop on the raspberry pi
I was trying out booting my pi4 into a chromium kiosk mode for a demo and ran the commands from the following post:
Open chromium full screen on start up
@xset s off
@xset -dpms
@xset s noblank
@...
- 21
2
votes
2
answers
950
views
Raspberry pi 4 stuck on rainbow screen, green LED flashes 4 times
I have install latest(2020-05-27) raspberry pi image 32-bit. And it gets on rainbow screen on both outputs, red lights is on, while green lights flashes 4 times.
When I turn on raspberry pi with out ...
- 29
1
vote
0
answers
64
views
Browsers are not opening in Raspberry Pi 4
Both browsers Chromium and Firefox are not opening in Raspberry Pi. I installed the Raspbian OS from Raspberry Pi Imager and all is working fine but browsers are not opening. I checked with my old ...
1
vote
3
answers
434
views
errors trying to import numpy on rasperry Pi 4 B
I am using the most recent version of Rasperry Pi's OS on a Pi 4 model B. Apparently the version of python that comes with the OS is 3.9. I'm not sure if Numpy comes with it or that I installed it ...
- 11
1
vote
1
answer
144
views
Can I use the Solenoid lock without an external power supply?
I have a question about the Solenoid lock: can I use it with a 12v relay module without an external power supply?
I'm using Raspberry pi 3 model B.
- 11
1
vote
0
answers
20
views
Changing HDMI diplay from 1 to 2 programmatically
I have a Raspberry PI 4 with a dual display setup I wanted to show different operations on both displays depending on some logic.
My application is built with compose multiplatform I can make two ...
- 11
1
vote
1
answer
664
views
ENOSPC Error with Camera Module V3 on Raspberry Pi 3 B
I bought an Pi Camera Module 3. I have an Pi 3 Model B Rev 1.2.
I get the ENOSPC error when trying to use the camera with raspistill:
pi@raspberrypi:~ $ raspistill -o t.jpg
mmal: ...
- 23
1
vote
0
answers
753
views
Specified qdisc kind is unknown when using tc netem to emulate latency on Raspbian
When I tried to emulate latency using tc. I get the following error on Raspberry Pi 3B+.
sudo tc qdisc replace dev eth0 root netem delay 100ms
Error: Specified qdisc kind is unknown.
These are the ...
1
vote
0
answers
81
views
PCA 9685 i2c communication issue
I would like to ask a question regarding the usage of secondary channel of i2c in rpi 4b.
I have enabled the secondary channel through adding "dtoverlay=i2c-gpio,bus=2,i2c_gpio_sda=22,...
- 11
1
vote
1
answer
717
views
How to open port 8080
I need to check a Python server and client on the pi4B.
Only I can't find how to run or open port 8080 on the pi4B.
1
vote
0
answers
80
views
WaveShare display (7 inch) doesn't respond to touch, after playing YouTube videos in Raspberry PI 4
I have an issue with my WaveShare display (7-inch LCD with case) where when I connect it to my Raspberry PI 4 and play youtube videos for some time in the chromium browser, the screen doesn't respond ...
- 11
1
vote
0
answers
59
views
Microphone volume seems to increase via PulseAudio but arecord does not see any increase
I am still trying to understand how the audio input/output stuff works over PCM on the Pi its new to me as I've never dealt with it before. All of the testing below was on the latest Raspberry Pi OS ...
- 31
1
vote
1
answer
116
views
Create Wireless Hotspot doesn't work
I want to turn my Raspberry Pi 3b into a Wi-Fi Access Point, but i have the probleme as you can see in this image
1
vote
2
answers
125
views
Unresponsive Raspberry Pi 4
I have a Raspberry Pi 4 about 2 years old. I'm on my second SD card. I spent the time to make sure I got a good one that would not worn out this time. I mostly used it for running a plex server. All ...
- 111
1
vote
1
answer
53
views
windows not getting IP address from Raspberry pi access point
I have looked at several posts but they don't seem to match my situation 100%
I have a Raspberry Pi 4b, 2g. I installed Bullseye 32 bit desktop (the default in Raspberry pi imager). Did all the ...
1
vote
0
answers
548
views
Boot ups but display rainbow screen on Raspberry Pi 3
I'm new in RPi, so can't resolve an problem. How can I fix a Raspberry Pi with Rainbow screen? I'm using Raspberry Pi 3 B with Raspian 10 (show below)
Linux raspberrypi 5.10.103-v7+ #1529 SMP Tue Mar ...
- 11
1
vote
1
answer
452
views
RaspberryPi security, Bios settings, ubuntu secure boot. 2fa u2fa hacking
Do I have to enter operatingsystem in order to access BIOS settings on a raspberry pi? I am thinking about installing ubuntu on a raspberrypi and I see that linux has equvalent to windows 10 safemode. ...
- 11
1
vote
0
answers
771
views
Chromium crashes after reinstallation on pi4
I noticed, today, that pages weren't loading in chromium, but If I pinged them in bash, using ping google.com, it went through just fine.
So, I reinstalled chromium, but, now a different problem has ...
1
vote
0
answers
193
views
Using Pi-Hole with USB Tether to Eth0 Bridge
New to the forums. Forgive me if my first question isn't that easy to understand. I'll try my best.
For some background:
I installed and configured pi-hole previously for an internet service that we ...
- 11
1
vote
0
answers
355
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 ...
- 11
1
vote
1
answer
646
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:
...
- 39
1
vote
0
answers
903
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 ...
- 11
1
vote
0
answers
868
views
Display going to sleep and not turning on
I am working on a kiosk powered by RaspberryPi 4, and I have a problem when the pi is running with a DVI/VGA adapter.
The issue is that monitor is that the monitor goes to sleep during the night: I ...
- 121
1
vote
0
answers
81
views
Is there documentation for the vcgencmd pwm_speedup
I see that vcgencmd has a command pwm_speedup but I cannot find any documentation on what it does. I assume it speeds up the PWM clock, but I don't want to mess with it unless I know what its doing. ...
- 111
1
vote
0
answers
950
views
how to install onnxruntime on raspberry pi 4
I want to setup onnxruntime python library on raspberry pi 3 and I tried some ways to install it but I couldn't . the ways that I followed are :
1 - way 1
2 - way 2
3 - using pip3
I want to know is ...
1
vote
0
answers
1k
views
Does Raspberry Pi 64-bit (aarch64) OS support Pi Camera module?
Does Debian Buster 64-bit (aarch64) have support for Pi Camera library?
I have recently installed a 64-bit Debian Buster OS on my Raspberry Pi 4B, I switched from a 32-bit (armv7l) OS version, because ...
1
vote
0
answers
104
views
Raspberry pi 4 with two webcams
I am trying to run two webcams on raspberry pi 4 with raspbian OS. It works rarely with very low FPS. Most of the time i am getting this error:
[ WARN:0] global /tmp/pip-wheel-qd18ncao/opencv-python/...
- 11
1
vote
0
answers
57
views
Rpi3B I2C 50k bd interferencing 4 sensors, including AS3935 lightening detector problem
I have four devices connected to a Raspberry Pi 3B via I2C - an SPS30 (dust), a BME280 (temperature, humidity, pressure), MLX90614 (sky temperature) and TLS2561 (light). They are connected to a ...
- 133
1
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0
answers
202
views
RPI-4 Bluetooth board does not find iOS devices
On a brand new RPI-4, I cannot find apple iphones neither using module bluetooth nor bluez package.
I tried to scan for BLE devices and all the command line tools such as bluetoothctl and hciconfig to ...
1
vote
0
answers
945
views
Getting iPhone bluetooth to pair with a raspberry pi to serve as 4G hotspot
I'm trying to figure out a way to pair an iPhone to a Raspberry Pi 4 (with a PIN ideally, but without is okay). Once paired, I'm going to set up the iPhone as a hotspot. All user interaction has to be ...
- 295
1
vote
0
answers
401
views
hdmi_cvt ignored on my boot/config.txt
I am testing a LCD HAT ( ST7735S ) that I bought and it is working great with fbcp, but I can´t get raspberry pi os to run at native screen resolution ( 128x128 ). I´ve been reading all documentation ...
- 189
1
vote
2
answers
1k
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raspberry pi as gateway lan/wifi
I bought Raspberri Pi 4 and installed predefined OS on it (I am using it headless). Raspberry pi is not connected to internet.
Now I need to do this:
in RPI Lan port is connected computer (device), ...
- 141
1
vote
0
answers
366
views
Can not see Pi Zero on my network
I can't seem to find anything on here already with the same case so I'll go ahead and ask.
I am trying to connect to my pi via SSH, but I can not see the pi on the network.
I have:
Flashed the SD ...
- 11
1
vote
0
answers
786
views
Raspberry Pi zero bluetoothctl connection fails to a device
I am currently trying to create a script to connect a Bluetooth printer to my raspberry device using CLI commands.
So far I have tried using bluetoothctl but it freezes/crashes whenever I try to ...
- 11
1
vote
0
answers
95
views
Problems with Huawei me909u521 modem in Raspberry Pi 3 b+
I have the Huawei me909u521 modem attached to RPi 3 b+ via sixfab LTE hat (connected by GPIO).
The Rpi is detecting the modem:
pi@raspberrypi:~$ lsusb
Bus 001 Device 004: ID 12d1:1573 Huawei ...
- 117
1
vote
1
answer
257
views
Solid State Relay only turning on once
My 12v DC motor is only turning on once then off forever. It should turn on and off in the loop indefinitely. What am I doing wrong?
I have a simple circuit...
Parts:
Raspberry Pi 4 (fully updated ...
- 141
0
votes
1
answer
40
views
Raspberry Pi 4: Unable to reboot (unable to mount root fs on unknown-block(179 2)
When leaving home last week, my Raspberry Pi 4 was working properly. After coming back today, I was wondering why all of my smart home stuff isn't working anymore, SSH doesn't work either. So I ...
- 113
0
votes
1
answer
208
views
How to run OpenVPN for Docker on a Raspberry Pi 4
I am trying to add a VPN to my Raspberry Pi NAS, that I have created, so I can access it away from home while still securing my network.
I am currently going through the OpenVPN for Docker walk ...
- 1
0
votes
0
answers
42
views
Raspberry Pi 4B - VLC player - Pir Sensor - Camera
I'm starting to know Python, so you can say I'm a newby.
For Halloween I'm working with a Python script for a Scare.
The idea is to show a nice picture (a paused video) on a tv screen and when motion ...
- 1
0
votes
0
answers
56
views
Install canvas on raspberry pi terminal
I tried run my code node.js, and report to developer and he told me "install canvas" on linux. I found and tried many solutions on internet but nothing work.
developer: "... i would ...
