Questions tagged [troubleshooting]
Referring to troubleshooting (a form of problem solving) issues with the Pi or related to the Pi.
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questions
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12 views
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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28 views
How do I fix or troubleshoot my Raspberry pi 3? [closed]
This is my first raspberry pi project. I got a raspberry pi3 with an alpha bot kit and I am trying to set the RP3 up. When I plugged it in I didn't get the boot up screen that was described in the ...
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1answer
20 views
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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0answers
25 views
Using the USB port to transfer data to an RGB LED Matrix (which works off an IDC connection)
I'm wondering if anyone thinks its possible to attempt to drive an RBG LED Matrix using a USB port on the pi. I have a raspberry pi 400 but I fried a few of my GPIO pins so I can no longer drive my ...
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45 views
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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1answer
68 views
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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0answers
36 views
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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61 views
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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0answers
34 views
Pi 4 not working with HHKB Hybrid type s keyboard
I can't find the keyboard device using the bluetooth manager and it does not work when I connect via usb. Any help please!!!
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1answer
98 views
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 ...
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30 views
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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1answer
64 views
Raspberry Pi 3 OpenCV Compilation Error at 34%
I am trying to install OpenCV-3.1.0. I am following this tutorial: https://www.pyimagesearch.com/2015/10/26/how-to-install-opencv-3-on-raspbian-jessie/
I was on Step #4: Compile and install OpenCV ...
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0answers
74 views
Rotating the display causing low fps
I've been working on a project that uses a 1200x1920 display but in the landscape format and it's certainly been one heck of a journey. I've edited the config file hundreds of times in dozens of ...
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0answers
33 views
Retropie - n00b - how to reset or access menu?
Just received my raspberry pi 4 gaming console. It has RetroPi 4.6 installed.
I've been building my favorites lists for hours. Then tonight, something went wrong. I began changing displays, themes, ...
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163 views
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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0answers
43 views
I see two Octopi instances on my Raspberry Pi - why, and how can I stop this?
I installed Octopi on a brand new R Pi straight out of the box, connected it to my Wireless network and to my Ender3D and all went well for a few days, until I started having odd symptoms, such as ...
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1answer
97 views
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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1answer
57 views
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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0answers
561 views
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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3answers
166 views
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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1answer
172 views
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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1answer
726 views
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, ...
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154 views
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 ...
2
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1answer
35 views
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 ...
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0answers
548 views
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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votes
2answers
979 views
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 ...
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0answers
31 views
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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1answer
84 views
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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92 views
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 ...
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172 views
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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1answer
41 views
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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0answers
40 views
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.
...
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0answers
37 views
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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1answer
27k views
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 ...
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2answers
55 views
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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1answer
3k views
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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282 views
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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2answers
379 views
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!) ...
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1answer
1k views
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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3answers
1k views
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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vote
2answers
2k views
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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0answers
363 views
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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1answer
170 views
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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1answer
1k views
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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42 views
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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571 views
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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1answer
231 views
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 ...
0
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2answers
27 views
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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0answers
472 views
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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1answer
443 views
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]...
