Questions tagged [troubleshooting]
Referring to troubleshooting (a form of problem solving) issues with the Pi or related to the Pi.
83
questions
0
votes
1answer
39 views
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 ...
0
votes
1answer
131 views
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....
0
votes
2answers
30 views
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 ...
0
votes
0answers
30 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 ...
0
votes
1answer
35 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 ...
0
votes
0answers
28 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 ...
0
votes
0answers
72 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 ...
1
vote
1answer
116 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 ...
0
votes
0answers
38 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 ...
0
votes
0answers
108 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 ...
0
votes
0answers
50 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!!!
1
vote
1answer
126 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 ...
1
vote
0answers
39 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. ...
0
votes
1answer
91 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 ...
0
votes
0answers
242 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 ...
0
votes
1answer
113 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?
...
-1
votes
1answer
67 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 ...
1
vote
0answers
717 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 ...
1
vote
3answers
185 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 ...
1
vote
1answer
203 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 ...
0
votes
1answer
834 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, ...
1
vote
0answers
173 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
votes
1answer
36 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 ...
1
vote
0answers
585 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 ...
4
votes
2answers
1k 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 ...
0
votes
0answers
32 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 ...
-1
votes
1answer
90 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 ...
0
votes
0answers
116 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 ...
2
votes
0answers
190 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 ...
-1
votes
1answer
43 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 ...
1
vote
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.
...
0
votes
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 ...
2
votes
1answer
28k 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 ...
1
vote
2answers
60 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'...
3
votes
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 ...
0
votes
0answers
288 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, ...
0
votes
2answers
419 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!) ...
1
vote
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 ...
2
votes
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 ...
1
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 ...
0
votes
0answers
371 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-...
0
votes
1answer
185 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 ...
1
vote
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. ...
1
vote
0answers
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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votes
0answers
590 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 ...
-1
votes
1answer
234 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
votes
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 ...
1
vote
0answers
476 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 ...
1
vote
1answer
462 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]...
1
vote
1answer
2k views
Raspberry Pi 3, bluetooth is not getting connected with HM-10 bluetooth module
I currently have a Raspberry Pi 3 with built-in bluetooth and some of my work specification require to connect it with HM-10 bluetooth module but I am unable to do so.
I have tried various methods ...
