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Questions tagged [raspbian]

Raspbian is a GNU/Linux operating system derived from Debian. Version numbering follows that of Debian and the current stable is 9 (Stretch). Raspbian is the most widely used Pi based distro and the one recommended by the Foundation, who distribute their own images of it.

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776 views

Thermal printer with Raspberry Pi 2 outputs only Chinese chars

Following thermal printer + raspi2 tutorial for printing images (https://learn.adafruit.com/networked-thermal-printer-using-cups-and-raspberry-pi/connect-and-configure-printer), I've already connected ...
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27 views

Why does my apache take several minutes to spawn workers?

I'm running Apache 2.4.25 on a Raspberry Pi 3A+ with Raspbian Stretch and every first request after booting takes several minutes. The connection does not break it just loads forever. So far I have: ...
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38 views

Custom camera driver

Is it possible to write a driver, say for a OV camera, based on the existing drivers at the RPI git repo? As is I understand, with a datasheet for a sensor it should be possible to write a similar ...
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671 views

How do I install the DisplayLink driver for Ubuntu on Raspbian?

I have a Raspberry Pi 3 Model B v1.2 with Raspbian Stretch 9.1 as an OS. I have the USB graphics adapter Kensington K33907. How can I proceed to install the DisplayLink driver for Ubuntu on Raspbian? ...
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911 views

Full duplex Audio With USB Sound Card

I setup Raspberry Pi with external usb sound blaster sound card. My Goal is to be able to record and play audio simultaneously. I setup and configured it to be the default sound card as follows: sudo ...
3
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0answers
26 views

sources.list broken in Raspbian

I have updated the /etc/apt/sources.list file and ended up breaking it. I've restored it to its original contents from my backup as follows deb http://raspbian.raspberrypi.org/raspbian/ stretch main ...
3
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283 views

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 (...
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306 views

Accelerated Numpy on Pi 3 B+

I'm looking to do some work with NumPy on my Pi 3 B+, and I'm not sure what the deal is with optimization, blas, etc. I installed libatlas using: sudo apt-get install libatlas-base-dev Following ...
3
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477 views

Setting up Pi Zero W Wi-Fi through USB SSH

I am having lots of problems connecting my raspberry pi zero to wifi. I have followed a number of tutorials. 1. What I have tried This was my wpa_supplicant.conf file ctrl_interface=DIR=/var/run/...
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19 views

Is it possible to have a Pi as an access point that forwards packets to another Pi that's connected to the internet?

Essentially a long range wifi extender. What I'm wondering is possible if whether you can have a setup such that a user can connect to the first Pi, make an HTTP request that gets forwarded to a ...
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2k views

Raspberry pi stuck on boot at Starting Terminate Plymouth Boot Screen

I just had a problem with my raspberry pi 3 model b because I accidentally powered it of incorrectly, then I decided to go into recovery mode and reinstall raspbian, I am using NOOBS, the raspberry pi ...
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5k views

Raspbian Stretch: WiFi configuration from hotspot

I'm looking for a webserver to configure the network using the AP that works with the latest Raspbian Stretch. If I'm not wrong these projects rely on the old name scheme: https://github.com/sabhiram/...
3
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235 views

Started picamera.start_preview() in Raspbian but don't see anything

I started picamera.start_preview() in Raspbian but I don't see the preview window which I thought was supposed to appear. import picamera cam = picamera.PiCamera() cam.start_preview() <picamera....
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227 views

“at” command doesn't allow usage of lxterminal and other bash commands

I am very new to the raspberry Pi and try to make like a "alarm Clock" with my Raspberry Pi Model 3 B. For setting the song which it should play for a given time I use the "at" command. The problem ...
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924 views

Raspberry Pi 3, chromium_browser, and Mobaxterm…Not happy!

I have a Raspberry Pi 3 setup running raspbien (usual os, jesie). I use mobaxterm to connect to the box and start up a gui. I can run several apps fine..such as gimp for instance. When I try and ...
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5k views

Setting up a DHCP server on a Pi v3B with Raspbian Jessie?

I'm attempting to set up a Pi as a DHCP server for a private network of ~10 machines. The pi will be connected to a network switch. So far I've been following this well written guide: https://www....
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328 views

Can't Set/reset GPIO pins using nodejs, why?

I'm using Raspberry Pi model B Type 2 with ARM6 and Type 3 with ARM7. I have tested this code several times and after a week, when I tried, it is not working. Below is my node js program: var ...
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495 views

running x on read-only raspbian

I am trying to run xserver on a read-only raspbian. I get the following errors. root@ClientX:/var/log# startx xauth: error in locking authority file /root/.Xauthority xauth: error in locking ...
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404 views

Can consolekit sefely be removed, when running headless (no GUI)?

Lately I am getting a lot of the following messages in my /var/log/syslog: Aug 26 07:48:20 raspberrypi console-kit-daemon[2376]: GLib-CRITICAL: Source ID 42 was not found when attempting to remove it ...
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444 views

QML without X11

Is it possible to run QML files without X_Desktop environment in raspbian Jessie for Raspberry Pi3? I found this tutorial: EGLFS , but I would prefer if it is possible to compile directly on RPi, ...
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381 views

How to install the MINI4x6 terminal font on the latest Raspbian (Jessie-lite)

I'm using a small 3.2" LCD screen and want to get as much text on it as possible (console screen). So far I can choose between Terminus6x12 or VGA8x8, but the MINI4x6 font seems to be missing. I have ...
3
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425 views

Raspberry Pi3 conflicting overlays

I have a Rpi3 with 2016-03-18-raspbian-jessie. I want to simultaneously connect a RC522 RFID Reader and a 5" touch screen LCD (waveshare). With this config.txt the 522 reader works fine: dtparam=spi=...
3
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370 views

Extend router network using Raspberry Pi 3 as access point

I currently am using this guide to create an access point using the RPI3 to create a new network, but what I would like is to extend the network to which the RPI3 is connected via Ethernet so that it ...
3
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0answers
2k views

Arecord not working with USB Microphone anymore

Before I start, I'd like to tell you that I've used arecord in the past with the Raspberry Pi 2 using the same USB Microphone and it has worked just fine. For some reason, it doesn't seem to work ...
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96 views

Windows PC Network “Disconnect” Button Disables Pi's ad-hoc Interface

I have encountered a problem with my network setup. I have three Raspberry Pi 3s running Raspbian, a Windows 7 PC, and a Mac. I have the Raspberry Pis configured to automatically startup an ad-hoc ...
3
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0answers
301 views

Speech Recognition ERROR

I am using a speech recognition library on a Raspberry Pi in Python that I found here and I installed it through pip. I also had to install Pyaudio of their site here. Pip would not work for Pyaudio ...
3
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0answers
406 views

How can I fix hanging SSH on Raspbian?

When I log in through SSH on my Raspberry PI 2 i can work for a couple seconds then the connection breaks. I get the error: packet_write_wait If I pin the host I get something like: Request timeout ...
3
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0answers
517 views

DS18B20 temperature sensor not found in folder

I've bought the camjam edukit 2 for my pi which includes the DS18B20 temperature sensor. However, after going over the instructions 20 times, rebuilding it a same amount and searching online, I still ...
3
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0answers
248 views

External HDD stopped mounting automatically in Raspbian

In Raspbian I used to be able to just plug in my external HDDs and they would be detected I could then find them in /media/ using WinSCP and transfer files to them. I haven't used Raspbian in a ...
3
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0answers
202 views

Adafruit Retrogame library will not send character press events

I'm trying to build a small arcade cabinet powered by the Raspberry Pi 2. I've got several arcade buttons (for ABXY, Insert Coin/Select and Start) and an 8-way joystick. I'm following the tutorial ...
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787 views

Problem configuring touchscreen for Raspberry Pi

I want to use this 3.5" adafruit touchscreen, so I followed this tutorial I ran the following commands from the link : curl -SLs https://apt.adafruit.com/add | sudo bash sudo apt-get install ...
3
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0answers
2k views

Share Wi-Fi Internet access via Bluetooth on Raspberry Pi

I have tried multiple ways I got on Google, without luck. I know if I am on an Ubuntu machine, I can use BlueMan to configure this. Actually I have already succeeded in that. However, I think BlueMan ...
3
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0answers
455 views

pi-gpio does not turn on/off the pin

I installed the HAP-NodeJS and I am using the Light_accessory.js to control a light. I Also installed pi-gpio and when the server is running I see that the state changes from 0-1 and vise versa. The ...
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0answers
1k views

fsck crashes when booting from USB

I have set up my Raspberry Pi 2 Model B to boot from a USB flash drive like in this article. Basically, I have burned the Raspbian image to a USB drive, then copied the boot partition to my SD card, ...
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0answers
779 views

My external USB HDD doesnt spin down

I have a raspberry pi running with raspbmc. There is connected a WD Elements ( /dev/sda1 ). Unfortunately the disk doesn't spin down. It looks like hdparm is not working. The following I have tried: ...
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0answers
579 views

Running two cameras at the same time (Pi Camera & USB camera)

I would like for my project to have one camera (PiCamera) Streaming video. And another USB Camera (PS3 Camera) taking pictures when I execute this function: def grabPicture(self): grab_cam = ...
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0answers
342 views

Raspbian - Network-Manager 0.9.6 or newer?

I am using the RPi CLI only. I would like to use Network-Manager as I do on my ubuntu system (v0.9.8). I have installed NM on my dev RPi (via apt-get), but looks like 0.9.4 is latest available. Is ...
3
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0answers
584 views

Touchscreen support

I just got a new 10" screen with capacative touch from chalk-elec and it has been working fine. The only problem I have is when I try to use the touchscreen it creates ghost touches and jumps and ...
2
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0answers
26 views

Not able to ssh into RPI Zero W with raspbian Lite?

I have for weeks now tried to ssh into my RPI zero, and I cannot figure out what is wrong here. I've been using this guide https://desertbot.io/blog/ssh-into-pi-zero-over-usb. The installation ...
2
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0answers
43 views

Send alert message to telegram from Raspberry Pi

I am currently working with an IR sensor for paper shelves. When the sensor detects no paper, it will turn the LED light on. at the same time, it will send an alert message through Telegram for the ...
2
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0answers
191 views

Raspberry Pi Zero W Alexa Microphone Not detecting, but speaker works

So I have looked online and I even got different mics and adapters to get this working, but it still doesn't work. I was able to successfully setup my Alexa Pi on the RPi Zero W, because when I boot ...
2
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0answers
321 views

Unable to install php7.2-intl Depends php7.2-common 7.2.4-1 but 7.2.4-1+b1 is to be installed

While trying to install a NGINX server on a Raspberry Pi 3 Model B Rev 1.2 I was following this tutorial, also tried this answer but both return the error The following packages have unmet ...
2
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0answers
637 views

Illegal instruction when running python on raspberry pi

I was doing a pi project where pi communicates with a UHF ID card reader via hardware serial and read cards. Pi gets the card information through serial and upload them to a remote database. Also some ...
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0answers
346 views

Yunohost and Freedombox

Has anyone tried installing Yunohost or Freedombox on top of the Raspbian Strech lite image? I am installing freedombox on top of Raspbian using the freedombox-setup package available in raspbian ...
2
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0answers
491 views

Better mouse controls with touch screen?

I'm using the raspberry pi official 7" touch screen (The one supplied with this http://a.co/gOTsWDC I don't know which model that is) and a raspberry pi 3 model B. I've noticed two major problems, ...
2
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0answers
883 views

RPi 3 as Wireless Hotspot (hostapd): nl80211 driver initialization failed

I'm trying to create a WiFI Extender with my RPi3. I'm using a TP Link TL-WN722N external adapter. The setup is as follows: Some WiFI -> TP-Link Adapter (wlan1) -> RPi -> Onboard RPi WiFi (...
2
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0answers
556 views

ffmpeg slideshow on raspberry pi raspbian

I'm trying to make a slideshow video from few (in this case 3) .jpgs. To do this, I'm using ffmpeg -r 1/5 -i bat%03d.jpg -c:v libx264 -r 30 -pix_fmt yuv420p proba12.mp4 and actually it works on ...
2
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0answers
172 views

Relay is switching but no power?

I am using a SainSmart relay and I am using it with my 3d printer to switch it on and off. I am just using it to switch the power on after the power supply so it's only working with 12v.i have ...
2
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0answers
731 views

WiFi not working on fresh install

I have had my Raspberry Pi for a few years now and today I went to do a fresh reinstall of Raspbian. I downloaded v2.4.4 of NOOBs and used that to install Raspbian. Everything installs nicely except ...
2
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0answers
299 views

USB Soundcard cant record Sound

The Problem is: i cant record sound with my USB soundcard microphone. When i try: rec test.wav I only recive: rec FAIL formats: can't open input `default': snd_pcm_open error: No such file or ...