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Questions tagged [troubleshooting]

Referring to troubleshooting (a form of problem solving) issues with the Pi or related to the Pi.

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Connecting Raspberry Pi Zero W to wifi

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
128 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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34 views

Raspberry pi tor router

I am trying to make tor router from last 3 days. I have tried everything.. Too much errors and services are not working ? I have android phone so i am going to provide Internet via android. I don't ...
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2answers
26 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
182 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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0answers
77 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
61 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
714 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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1answer
56 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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2answers
204 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
210 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
54 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
349 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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0answers
39 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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0answers
53 views

White screen on 7,5" touchscreen display on RPi2 with Ubuntu Mate

I have an RPi 2 and a 7,5" touchscreen display. When they are connected, my display shows only white pixels in a weird way (fading in and out). The display works if connected to another computer with ...
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0answers
212 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
70 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 ...
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2answers
24 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
293 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
198 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]...
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0answers
86 views

Getting error when trying to install Plex on my Raspberry Pi 3

Hi I am trying to get Plex Media Server to work on my Raspberry Pi 3 and receiving the following error when i type in this command: sudo nano /etc/default/plexmediaserver response: GNU nano 2.7.4 ...
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1answer
969 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 ...
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1answer
24 views

Monitor goes black when unplugging the ethernet cable

My Raspberry Pi B+ is working well except: the HDMI only seems to work if the ethernet cable is plugged in. If I remove the ethernet cable the monitor goes black. I plug the cable back in - monitor ...
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1answer
251 views

Accidentally shorted C97 on the Raspberry Pi with a washer

I accidentally dropped a washer and unfortunately it landed on the C97 capacitor. I think that shorted the pi out. The ACT and PWR lights are now solid red and green, whereas it was blinking ...
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1answer
4k views

(python 3) Auto-Conversion from .h264 to .mp4 [closed]

I have a Python 3 code that is supposed to record video. Unfortunately, I do not ant it in .h264, I need it to convert to .mp4. I thought the easiest way to do this would have been to use subprocess....
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2answers
2k views

Can't connect through PuTTY

I'm going crazy trying to connect to my Pi through PuTTY. I know I have SSH enabled, I checked the ports, used ifconfig and put in every single IP address I saw in there, used hostname -I, and they ...
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1answer
280 views

Pi appears as offline according to Xfinity router even though it IS connected

I'm SSH-ing into a Pi right now, so it is definitely connected to the network. It is connected via Ethernet. The Pi is running default Raspbian. Other Wi-Fi and Ethernet devices that are connected ...
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0answers
459 views

Raspberry Pi 3 stopped working

My Raspberry Pi 3 suddenly stopped working only the red light led is on and nothing happens. I suspected the SD card so I swapped in another with only NOOBS on it and it worked once and not again. I ...
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1answer
463 views

Pi 3 Xorg.cond.d missing and need to swap the axis for the eGalax USB touchscreen

I have a problem: xinput_calibrator doesn't work properly. After I touch 4 points my touchscreen's X and Y axis stay swapped. And I can not apply changes manually in the Xorg.conf.d directory because ...
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1answer
238 views

I got my first Raspberry Pi. So how do I turn it on?

I feel stupid asking the question: I've been looking for an answer for half an hour, but it seems that anybody else have figured it out. I've got my first Raspberry Pi 3 model B. I followed the ...
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2answers
2k views

RPI 3 Firefox Video plays but Sound is loud hiss

In the latest version of Raspbian (kernel 4.4), any file I stream through youtube-dl to omxplayer or mplayer using the 3.5mm headphone jack works perfectly. However, in Firefox when I go to any site,...
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2answers
2k views

Php not working with nginx

So I tried following this guide, but seems to fail at this step. When accessing the /index.php my browser(both chromium and firefox) downloaded the page as a file, then I decided to delete the file ...
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2answers
980 views

Official Touchscreen Backlight Inconsistent Control

I am running Raspbian Jessie Lite with a custom Xfce4 Desktop Environment installed. I created a file which when run, changes the number in /sys/class/backlight/rpi_backlight/bl_power to 0 or 1 ...
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1answer
425 views

RPi.GPIO not working at all

I have just started with the GPIO on my raspberry pi but can't get any of the code to work. import RPi.GPIO as GPIO import time GPIO.setmode(GPIO.BCM) GPIO.setwarnings(False) GPIO.setup(18,GPIO.OUT) ...
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2answers
356 views

Have I destroyed USB power? Ethernet & USB devices powering on & off constantly unless keyboard connected

I have a rather strange problem. If I boot my Pi with only power, HDMI & and ethernet cable plugged in, the ethernet port and other USB devices will flash on (i.e. the ethernet lights and LEDs on ...
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1answer
150 views

Trouble shooting on RPI 3 under Raspbian Jessie (set by NOOBS)

I had to reboot my RPI when my web server was working. And the RPI can't reload on my Desktop after this reboot; a black page appears at each time. So i have tried some button press and when I do Alt+...
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2answers
405 views

Raspberry Pi won't boot up after installing Adafruit's Jessie PiTFT image

I am trying to have my Raspberry Pi 3 work with an Adafruit TFT. I installed their Jessie based image (http://learn.adafruit.com/adafruit-pitft-3-dot-5-touch-screen-for-raspberry-pi/easy-install), ...
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0answers
128 views

Routing problem

I'm searching for a solution for what I consider a simple routing problem but I can't get my head around it. It's about 3 pi's. The first one works as an accesspoint (I call it #1), the second one ...
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2answers
11k views

Consistent Corruption of SD Card

I have been using a Micro SD card that has been getting corrupted very frequently. I tested it with the badblocks command on another Linux box and it said there were 0 errors. I also checked it with ...
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1answer
3k views

How to get rid of this video flickering?

When connecting my RasPio to my tv (rather old, but not tube tv anymore), I get this weird flickering everywhere on the screen where clean, thin lines with big contrast are present (including fonts). ...
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0answers
1k views

Microsoft All-in-One Media Keyboard not working at all with RPi 2

pi@raspberrypi:~ $ lsusb pi@raspberrypi:~ $ lsusb Bus 001 Device 007: ID 045e:0800 Microsoft Corp. Bus 001 Device 003: ID 0424:ec00 Standard Microsystems Corp. SMSC9512/9514 Fast ...
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0answers
644 views

Remote restart after -bash: fork: Cannot allocate memory

I am running Raspbian on a Raspberry Pi which is located in a remote location. I use Putty to connect to it via SSH. I can connect fine but when I try to run any command I get the following: -bash:...
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6answers
11k views

Slow Boot: Ethernet Wait

I am using Minibian(lightweight version of Raspbian) and if the Pi is not connected to a network it will wait a whole minute before finishing booting. I noticed that if I commented out lines 3 and 4 ...
2
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1answer
7k views

Cannot find device “wlan0”

Trying to configure Wi-Fi and Ethernet on a headless Pi Model B ran the following to get what I think is the correct version of the Wi-Fi dongle driver sudo apt-get update sudo apt-get upgrade sudo ...
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1answer
3k views

Is there diagnostic software to perform a general health check of RPi components?

At least for the Windows PC (my domain), there are a multitude of programs available that will run a comprehensive test of as many components as is practical to check. Is something similar available ...
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0answers
145 views

Can't reach port 9050

I have a problem with tor (this version and also 0.2.7.*). After compilation, with and without installation afterwards, I can'treach port 9050. I would like to see with arm what's going on but it ...
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1answer
347 views

Ffmpeg Piping output to pifm

I am trying to convert mp3 audio files on the fly with ffmpeg since pifm(a program to transmit over the FM band) only takes a specific file. I was told I could use: ffmpeg -i input.mp3 -f s16le -ar ...
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2answers
94k views

Raspberry Pi 3 - internal Wifi wont connect to network

i'm rather new to Linux and all that, in fact the Raspberry Pi 3 i just got is the first Linux-only machine i ever had, running the latest version of Raspbian .. so here's my problem: I'm trying to ...
3
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1answer
1k views

Apt-Get Remove Does Not Fully Remove

I have noticed that when I in Raspbian run the commands: sudo apt-get remove package and sudo apt-get purge package there are still files related to the package on my system such as folders with the ...
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3answers
623 views

Port forwarding on a tethered RPi

I wondered if I can get some clever ideas here. I have this setup currently working for 4G internet in our home: A Moto E from Cricket Connected by USB to a raspberry pi (tethered) Connected to an ...