Questions tagged [troubleshooting]
Referring to troubleshooting (a form of problem solving) issues with the Pi or related to the Pi.
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5-second increment pauses on Pi Zero W
I've recently set up a Pi Zero W with the as-of-writing most recent Pi OS Lite image. It is connected to my home network via Ethernet and has Pi-hole installed on it. I found that during setup and, ...
- 101
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1
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Camera module survivability questions
I have a camera module which was working fine without the two infrared (IR) lights:
.
Today, I decided to place on the IR lights:
turned off Pi
attached the lights and rescrewed the camera on its ...
- 101
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84
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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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1
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113
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Pi4 won't boot - 3 long / 3 short green flashes
My Pi4B wouldn't boot up the other day and have been trying many different things with no luck. I have everything unplugged from it except the official power supply. With or without the SD card ...
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60
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Raspberry Pi as Router – I got lost in the instructions somewhere
I’m trying to create a secondary router with a Raspberry Pi 3B but somehow keep making the same error and missing some instruction. Maybe I’m using the wrong term which is why it’s not working – I’m ...
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1
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393
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RPi 3b+; updating bluez to 5.50-1.2~deb10u2 fails/hangs/
As topic says, after running apt update the OS (running Raspbian GNU/Linux 10 (buster) on kernel 5.10.52-v7+) wants me to update bluez and its dependencies. The version it's trying to update to is 5....
- 101
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2
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37
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Looking for a guide to USB ports - and how to trouble-shoot when things stop working
Having recently had problems when connecting different devices to my Pi over USB I am looking for a guide (link to) that explains in more detail what goes on in the OS when devices are plugged in to a ...
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57
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Raspberry Pi Magic Mirror/Google Assistant
I installed a magic mirror software and installed google assistant with it but then after I started the module and tried giving a command everything but then the display shut off. The Pi still has ...
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1
answer
109
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PiCamera V2 NoIR and AMG8833 thermal sensor mmal_vc_port_enable: failed to enable port vc.null_sink:in:0(OPQV): ENOSPC
Hardware used: Raspberry pi 4b, 4 gb ram, AMG8833 thermal camera, PiCamera V2 noir, ALL brand new, i just bought them few weeks ago.
Im trying to do finish a project and i ran into a not that good ...
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120
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Pi Zero W USB port dead or not dead?
That is the question! This is my first Pi -> Zero W 2016 v1.1. USB problem happened after another very strange incident. After few days of normal operation, at boot logo screen my Pi suddenly ...
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answer
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RPi 4B 4GB: Excessive Shut Down time using the GUI shutdown
I have 5 - 4B-4GB's and 1-8GB systems. One of the 4GB systems is experiencing an excessive shutdown (power off) time of 4.5 minutes. All the other systems take about 15-20 seconds, all my systems ...
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45
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MOSFET conducts current when no gate voltage
I have a Raspberry Pi 4B and a MOSFET IRLB8721PbF (https://cdn-shop.adafruit.com/datasheets/irlb8721pbf.pdf)
I have wired up a simple circuit with an LED, resistor, the MOSFET and a 6V DC power ...
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171
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Pi4 OVERHEATING and damage micro sd
i have a pi4 2gb wich overheat and damage the microsd as soon as i boot it.
After booting pi4 it show this message and the microsd start to burn. when i pull it out from pi and insert inside an ...
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1
answer
185
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Share Uart Pins
In my build i have a gsm module ( SIM800L ) connected to a RPI 0 W in this way:
I would like to get also the current position of my device, for do so i was thinking to buy a Gps module ( NEO-6M STM32 ...
- 111
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96
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Main Menu Editor gone
So I had my pi 4 for a few weeks now and everything was working fine.
Suddenly, the main menu editor is missing and I can't seem to restore it.
I tried starting it via 'alacarte' but nothing happens. ...
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394
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Raspberry 4 - NAS, slow copying over the network
Raspberry 4 - NAS, slow copying over the network
I have problem with copying backup speed over network, currently only 30MB/s.
How can I confirm that this is the maximum data backup speed?
I tested ...
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1
answer
165
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rPi4 no longer capable of HDMI output. Eeprom recovery did not help
I have a rPi 4 that died on me, in two stages:
First it would only show a yellow screen on HDMI outputs.
Then later, it completely stopped outputting HDMI altogether. It seems to be in a reboot loop?
...
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1
answer
139
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Permanent IP Routing on rPi
I need to be able to ping my rPi through eth0, but it is connected to wifi via wlan0. Turns out, it receives the ping on eth0, and replies through wlan0.
I have a rPi b+ 3, latest updates. Running ...
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0
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983
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My raspbian buster is stuck at Splash Screen with polkit.service!
I was working fine with my Rpi4 this morning. Next time when I started it was okay. Then there was some resolution issue. so I went into raspi-config and disabled the OpenGL. After a restart my PC is ...
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3
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281
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My raspberry pi HDMI is not working. What are my other options?
I got this old Raspberry Pi B+. One day, suddenly the HDMI stopped working completely. I know it boots up because I can still ssh into it. The thing is, I have no AV cables for alternate input. I ...
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1
answer
301
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RFID RC522 Clone Script Unicode Error
I've set up a RC522 Card on my pi using This Tutorial and hacked together the Read.py and Write.py scripts into a Clone.py script:
#!usr/bin/env python
import RPi.GPIO as GPIO
from mfrc522 import ...
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1
answer
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Connecting a USB Device by GND, VCC, RX, and TX
I have a few basic devices that utilize a mini USB port. Rather than plugging them into a USB hub, is it possible to connect them and have them recognized by a Raspberry Pi through the four GND, VCC, ...
- 111
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198
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Rpi AdaFruit python library controlling SPI MCP3008 of eTape Liquid Level Sensor problem
I have a rpi4 and have successfully replicated the project listed here using the eTape sensor (etape tutorial) I am satisfied with the performance using long breadboard and T-cobbler. In order to make ...
- 111
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1
answer
37
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Raspberry Pi with touchscreen - screen turns white and pi restarts when trying to use LEDs
We currently have a Raspberry Pi 3B+ with touchscreen hooked up to a PCB, and are trying to run adafruit neopixel 60led strip but, when we try and send data using their library, the screen turns white ...
- 97
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0
answers
646
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Raspberry Pi 4 drops hdmi connection for a second at boot tv reconnects, drops signal again after playing any type of video
I've been having a terrible experience with my raspberry pi 4 4G, with regards to a strange problem that's occurring. I am currently running NOOBS with raspbian/libreelec, and everytime after entering ...
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2
answers
1k
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What is causing gaps in logs?
I am examining the log of my program, which runs on a Raspbian 9, on an SD card. The program is started and managed by systemd, and the logs are handled by journald.
Occasionally the log contains ...
- 143
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0
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32
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Pi3 model B v2 no longer reads SD card!
I've had this pi for almost a year and have been using it recently for almost a month, and it used to work just fine. All of a sudden, the green LED stopped blinking "an indication I found out means ...
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1
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104
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Can Pi 3b+ be killed by wire under ethernet port
Can raspberry pi be killed by cable under ethernet port? I had moved pi on desk and placed it over a cable in area shown on picture (cable has only 5mm exposed wire), after that pi freezed and din´t ...
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139
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Raspberry Pi 3 Model B Hung / Frozen, Including Clock?
I just happened to check on a Raspberry Pi 3 Model B with Raspbian Jessie 4.9.35-v7+ this morning and found it unresponsive. IIRC, there is an LED that is normally on when the Pi is on, so I thought ...
- 357
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225
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Dropped wifi packets from Pi Zero W to Pi 3B+
We're trying to build a system where a master Pi 3B+ controls a dozen (or more) Pi Zero W clients - all running the latest raspbian (as of 18:00 EDT today) - in an isolated WiFi island (no ...
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44
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Unable to Connect to Raspberry Pi with SSH
My Raspberry Pi is active on my network and I confirmed that it's online with an IP scanner. But if I run PuTTY (I usually connect through SSH instead of HDMI) and try to connect, it says that the ...
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0
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47
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Raspberry won't boot (even after replacing sd and power supply)
I was working on my raspberry over ssh, and then I lost connection with it.
So then I saw that when it boots the red lights turns on while the green light doesn't light on and there is no display.
...
user101506
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37
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Connecting Raspberry Pi Zero W to wifi [duplicate]
I've just set up a Raspberry Pi Zero W - my first Raspberry Pi. I've loaded Raspbian into it without trouble, but I can't connect it to WiFi. It can find my home network easily, and lets me key in ...
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1
answer
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How to update Chromium on RPi 3B+?
I'm brand new to Pi, and I found that the Raspberry Pi chromium is not as updated as standard Chromium. Thanks in advance.
EDIT:
For clarification, I am on Raspbian 2.5 (Nov. 2018) on a Raspberry Pi ...
1
vote
2
answers
74
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When under load, the system is unresponsive except for a ping
I've got a Raspberry Pi 1 Model B that has been my trusty workhorse for a few years. It normally chugs away happily running transmission, pi-hole and a node.js app simultaneously.
All of a sudden it'...
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1
answer
3k
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Help with installing zbar
I was hoping someone on here who's familiar with zbar could help me install it properly? Here's what happened: (I'm running Stretch on the Raspberry Pi 3 Model B).
I download the file from here: ZBar ...
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310
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RPi freezes at booting. Log screen attached
I'm working on a project where I have a couple of RPis recording some audio. Recently the devices stopped working and after probing I found out that devices stops at following screen while booting, ...
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2
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517
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Raspberry PI 3 freeze for some hours and afterwards its working
I've a strange issue with my raspberry pi 3:
The raspberry is working fine, after a while the raspberry stops working for about 5 hours. Afterwards the raspberry recovers itself (without rebooting!) ...
- 161
1
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1
answer
1k
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segmentation fault python
I was trying to install the opencv with TBB in a new virtual environment. So I have two virtual environments and a base environment. Before this compiling, the base environment was working well, with ...
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How do I change the desktop wallpaper on my Pi. I am using Jessie.
I have a number of images shown for my wallpaper in preferences but whatever I click on, does not change the wallpaper.
I want to go back to the Raspberry Pi image and when I click on that image ...
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2
answers
2k
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Act LED flashing 3 times quickly after boot
The ACT LED on my Raspberry Pi 3 B+ is flashing three times very quickly after boot.
I am not able to connect via ssh (the error message is "Connection Refused" – despite ssh being enabled), but I am ...
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376
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Raspberry Pi 3 crash after few hours running
I need your advice on troubleshooting my Pi 3B crashes.
I set it up to run some crypto mining programming; it was running constantly fine for over few weeks. Recently, it keeps crashing after every 5-...
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193
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SDA1 gpio test reports 0 when nothing is connected and i2cdetect -y 1 detects all addresses active?
I am fairly new to raspberry pi so if I am not providing enough information please let me know. Im working with a new Raspberry Pi 3.
My issue is that the command i2cdetect -y 1 is returning all ...
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1
answer
1k
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Raspberry Pi Internet Issues
On my raspberry Pi 3B, attempting to access the internet for downloads fails. Anything that uses it (chromium, apt-get, etc) does not work, giving errors such as DNS server not found, or just hanging. ...
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0
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43
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Detect a "crash" electrically or mechanically
Is there a mecahnical or electrical way to find out if a raspberry pi 3b has crashed? measuring voltage at a certain pin or similar?
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633
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Mednafen Troubleshooting (specifacally SNES and Gameboy Advance)
I am trying to use mednafen and mednafee to run retro games on my raspberry pi. The NES games work great, and so do the Gameboy Color and Gameboy games, but I am having trouble with the SNES and GBA ...
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246
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Pi3 Act blinks once, no boot
I have got a problem with my Paspberry Pi 3 that my girlfriend put away on a drawer.
I cant boot it any more, I have tried the SD card in another pi, and it boots, even tried a diffrent SD card that ...
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2
answers
27
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Raspberry Pi 3 Wont show any power LEDs
I just was lucky enough to win a Raspberry Pi 3 at a school fair. I inserted an SD card with the boot image and gave it power. However, the green LED would not flash to show it was booting. I have ...
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0
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494
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Issues using SPI pins on Raspberry Pi 3 with MCP3008 ADC for Voltage Sensor [closed]
I am trying to create a voltage sensor using a Raspberry Pi 3 with Raspbian (February 2017 release because that is the one I need for the rest of my project) by connecting the SPI pins to an MCP3008 ...
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1
vote
1
answer
508
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GPIO (using sysfs problem)
I'm presently trying to use the built-in indicator lights on the Raspberry Pi B+ to provide status:
Green = OK;
Red = Problem
After turning off the triggers (writing none to /sys/class/leds/led[0,1]...
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