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.
405
questions
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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 ...
- 58.6k
23
votes
4
answers
46k
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How to emulate Raspberry Pi in QEMU?
A few years ago, people were saying they were able to emulate a Raspberry Pi 2 or 3 in QEMU.
However as of late 2020, I am unable to do so.
Can anyone let me know what the correct command line ...
- 397
17
votes
5
answers
56k
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Should I install NOOBS or Raspbian?
The Foundation site used to state states "Beginners should start with NOOBS – New Out Of the Box Software."
Raspberry Pi Ltd. now hides NOOBS from unsuspecting novices.
Only unscrupulous ...
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11
votes
3
answers
32k
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How can I see Raspberry Pi OS Version (32bit or 64 bit)?
In order to determine whether or not I have a 64bit OS installed, I have tried the following commands.
The output of the commands do not tell me immediately if its a 32bit or 64bit OS.
After looking ...
- 251
9
votes
4
answers
4k
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Will Raspberry Pi OS update `sudo` to address a recent security vulnerability?
There has been some traffic online this year regarding an apparently substantial vulnerability in sudo that allows unauthorized privilege elevation - CVE-2021-3156.
I've been checking sudo --version ...
- 21.1k
7
votes
4
answers
17k
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Turn off screen reader in Raspberry Pi OS?
This is a fun one: somehow, the screen reader accessibility setting has been turned on in my Raspberry Pi OS environment. I can't figure out how to turn it off! Other than turning off all audio, the ...
- 173
7
votes
1
answer
5k
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Standard Passwort not Accepted – Headless Setup [duplicate]
I downloaded the most recent version of Raspberry Pi OS, saved a wpa_supplicant.conf and a ssh file in the boot partition, but I was not able to ssh to the pi with ssh [email protected] as the ...
- 1,339
7
votes
1
answer
15k
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Run 64-bit Raspberry Pi OS beta test version
With the latest release from 2020-05-27 the operating system was renamed from Raspbian to Raspberry Pi OS and its image names are changed from e.g. 2020-02-13-raspbian-buster.zip to 2020-05-27-raspios-...
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6
votes
4
answers
18k
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Uninstall Python2 in Raspberry Pi
I can observe both versions of Python2 and Python3 in my Raspberry Pi.
Both of them were by default.
Why do we have both the version of python in Raspbian?
Is it safe to uninstall Python2 and only ...
- 189
5
votes
1
answer
304
views
raspberry pi 4 using SPI 4 & 5 at the same time causes kernel oops and crashes the whole system
intro
i want to use multiple SPI busses at the same time.
but when i use to use SPI 4 and SPI 5 at the same time it crashes the whole system
it doesn't crash instantly sometimes it takes 10 seconds ...
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5
votes
0
answers
2k
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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
4
votes
1
answer
5k
views
Can you use a 5V Relay Module with the Pi?
Can you use a 5V Relay Module or similar with the Pi?
- 58.6k
4
votes
1
answer
178
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How does Raspberry Pi OS installer know my WiFi password?
In the special settings for the RPi OS installer you can specify the WiFi password for your network. It's already prefilled in. I can even see it by placing checkmark "show password".
...
- 191
4
votes
1
answer
932
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I2C baudrate in Raspberry Pi, depends on arm core frequency
I'm using a Raspberry Pi 3, with a Raspberry Pi OS (arm64) official image to communicate with a PMBus compatible device (rpb1600-48 battery charger).
I was experiencing communication problems. ...
3
votes
3
answers
6k
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I am not able to use sudo-apt upgrade whenever i try this error shows up like this how can i fix it?
$ sudo apt upgrade
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
Calculating upgrade... Done
The following packages were automatically installed ...
3
votes
2
answers
4k
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Reliable temperature/humidity logging with Python and a DHT11
There are more than 100 questions on this site concerning DHT11 or DHT22 sensors and I have used these with Python and c code using various libraries.
None that I have tried seem to give reliable ...
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3
votes
1
answer
3k
views
Will RaspiOS Lite (no Desktop environment) be able to start a software with GUI made with Tkinter?
The question might have an obvious answer. I believe it is not possible but I am not able to test it myself on the Rpi zero W until next week. I assume Tkinter requires a “window manager” from an OS ...
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3
votes
2
answers
2k
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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 ...
3
votes
1
answer
689
views
Change display manager from SD card
I installed xdm on my raspberry pi os with apt, at the end of the installation, it prompt me to choose default display manager and I chose xdm instead of previously installed lightdm.
Now when I power ...
- 133
3
votes
2
answers
3k
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Connecting RPI Zero W2 to different Wi-Fi AP simultaneously or sequentially
I am trying to use a RPI Zero W2 to solve a problem I have with collecting files from an IoT device. Specifically, I don't know how to setup the Wi-Fi network(s). Any inputs to my questions would be ...
- 31
3
votes
2
answers
3k
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Raspberry Pi Menu missing on Raspberry Pi OS
How do I get the Raspberry Pi Menu item back after upgrading to Raspberry Pi OS?
After the upgrade I had a "blank" Menu button which merged into the Panel.
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2
votes
1
answer
23k
views
How can I restore my raspberry pi sources list
I changed something which bricked my rpi. I changed sources.list and raspi.list then when I run sudo apt update I am getting this error:
E: Malformed entry 1 in list file /etc/apt/sources.list (Suite)
...
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2
votes
2
answers
212
views
SSH connection status indication through GPIO LED
I am looking to implement this feature where an LED connected to Pi GPIO should turn on whenever the Pi is successfully connected to a PC by SSH and turn off otherwise.
Appreciate any help in ...
- 31
2
votes
4
answers
2k
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 ...
- 131
2
votes
2
answers
3k
views
Raspberry Pi w/Buster dynamic AP and Wi-fi client
I have managed to setup my Raspberry Pi Zero W to work in both AP and Client mode simultaneously using this great guide.
Using wpa_cli -iwlan0 (no sudo), I am able to scan, connect and save networks ...
- 115
2
votes
2
answers
156
views
Launch a Bluetooth Low Energy command after raspberry startup
I wrote a command in swift that uses the internal bluetooth low energy module of my Raspberry PI 4. This command must be launched as superuser.
Everything works perfectly if I launch the executable ...
- 123
2
votes
1
answer
744
views
Can I move my SD card with Buster from a Pi 3 to a Pi 4? [duplicate]
To get better performance, I want my existing setup on my Pi 3 moved directly to a Pi 4. Can I just switch the SD card from the Pi 3 to the Pi 4 for it to work properly?
The SD card contains a fresh ...
- 123
2
votes
2
answers
5k
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Is it possible to boot a Raspberry Pi 4 from a GPT USB-connected disk?
Similar question was asked here, but the answer is out of date and I don't have enough reputation to ask in a comment. I know it's possible to boot a Raspberry Pi 4 from USB with the latest firmware ...
- 23
2
votes
1
answer
418
views
Access Denied when scanning for BLE (Bluetooth Low Energy) devices
I'm running an up to date version of Buster on a Pi 3B+ (v1.3) and my Python program dies with
txdbus.error.remoteerror:
org.freedesktop.DBus.Error.AccessDenied: Rejected send message
errors unless I ...
user115418
2
votes
2
answers
605
views
Unable to auto livestream when booting - enable .service does not work (failed to enable unit: Invalid argument)
I want to set up a service that starts a livestream when booting the rasp. I have been following this tutorial: domoticproject.com/creating-raspberry-pi-service
This is what my .service in /lib/system/...
- 23
2
votes
2
answers
872
views
Audio alternatives for Raspberry Pi 400
So as you all know, the Raspberry Pi 400 does NOT have an audio jack, which is pretty annoying especially when I need to get audio output from it.
Can I connect to a Raspberry Pi 3B via Bluetooth from ...
- 103
2
votes
3
answers
296
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 ...
- 61
2
votes
1
answer
1k
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Python script not playing audio when run through systemd
After trying every possible solution online I am posting this question. I have a python script that runs on boot with the help of systemd. Everything worked fine till I installed a fresh raspian ...
- 49
2
votes
1
answer
3k
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Anydesk not installing in Raspberry Pi 3b+ with Raspberry OS 64 bit
pi@raspberrypi:~ $ sudo dpkg -i anydesk_6.0.1-1_armhf.deb
(Reading database ... 94130 files and directories currently installed.)
Preparing to unpack anydesk_6.0.1-1_armhf.deb ...
Failed to stop ...
- 189
2
votes
1
answer
543
views
How to fix frozen boot screen on R Pi?
I've installed the image Raspberry Pi OS (32-bit) with desktop and recommended software to microSD HC (Smartbuy 32gb) using Raspberry Pi Imager for Windows. Turning my R Pi on leads to loading screen ...
- 123
2
votes
2
answers
4k
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How to create a user with "userconf.txt" but disable auto-login
Scenario
I'm trying to bootstrap Raspberry Pi's by just putting configuration to the "boot"-volume.
My workflow looks like this:
Flash SD-card with Raspberry Pi OS Lite
copy these files to &...
- 143
2
votes
1
answer
5k
views
Video encoding on Raspberry Pi 4 via ffmpeg and h264_v4l2m2m produces corrupted video
Raspberry Pi 4, 4 GB
Rapsberry Pi OS Lite, 64 bit (2022-09-22)
Kernel 5.15.61-v8+
ffmpeg 4.3.4-0+deb11u1+rpt3
config.txt has the following relevant entry:
# Enable DRM VC4 V3D driver
dtoverlay=vc4-...
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2
votes
1
answer
830
views
why does gpsd not update a location past its first fix?
I'm running GPSD 3.23.1 built from source but this also occurred on GPSD 3.22-4 from the debian/raspbian repositories.
When I launch any gpsd client, gpsd sends the first fix it managed to acquire, ...
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2
votes
2
answers
313
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
421
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 ...
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2
votes
1
answer
184
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 ...
2
votes
0
answers
705
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
947
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
2
answers
4k
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What am I missing in regards to "Raspberry Pi Imager"?
Today, I went to my bookmark for Raspberry Pi OS to see if there were any new updates. There were.
The horribly-named "NOOBS" installation utility had been renamed into the much less ...
- 13