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Questions tagged [raspbian]

DO NOT use this tag, use the more specific Raspbian-Stretch or Raspbian-Jessie.

7
votes
0answers
665 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 ...
4
votes
0answers
867 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
votes
0answers
138 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 (...
3
votes
0answers
147 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
votes
0answers
925 views

installing mmal motion on RPi

I have been trying to install motion on my Pi3, only to be chasing library errors at every step. None of the tutorials seem to say what flavor of Pi OS to use. I am beginning to wonder if I chose ...
3
votes
0answers
580 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? ...
3
votes
0answers
72 views

Raspbian Jessie Wi-Fi doesn't work with multiple IPs on same network

I would like to use two different static IP addresses for the same network with the same Wi-Fi dongle. I read in different forums that it's better to use /etc/network/interfaces instead of dhcpcd.conf ...
3
votes
0answers
18 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 ...
3
votes
0answers
1k 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 ...
3
votes
0answers
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
votes
0answers
175 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....
3
votes
0answers
209 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 ...
3
votes
0answers
882 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 ...
3
votes
0answers
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....
3
votes
0answers
282 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 ...
3
votes
0answers
457 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 ...
3
votes
0answers
378 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 ...
3
votes
0answers
402 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, ...
3
votes
0answers
392 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
votes
0answers
342 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
votes
0answers
1k 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 ...
3
votes
0answers
93 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
votes
0answers
280 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
votes
0answers
372 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
votes
0answers
464 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
votes
0answers
242 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
votes
0answers
197 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 ...
3
votes
0answers
767 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
votes
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
votes
0answers
420 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 ...
3
votes
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, ...
3
votes
0answers
751 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: ...
3
votes
0answers
549 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 = ...
3
votes
0answers
322 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
votes
0answers
546 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
votes
0answers
27 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
votes
0answers
263 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/...
2
votes
0answers
491 views

How to start/stop wpa_supplicant on default raspbian?

I configured wpa_supplicant so I have a wifi connection after boot up. Now I want to stop it for while and start it again. I tried: rpi ~$ sudo ifdown wlan0 ifdown: unknown interface wlan0 But wlan0 ...
2
votes
0answers
270 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
votes
0answers
418 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 ...
2
votes
0answers
268 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
votes
0answers
456 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
votes
0answers
144 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
votes
0answers
531 views

Share internet over USB

I have my Raspberry Pi 2 Model B connected to the internet via an ethernet cable. I now have a second device (It's an android phone, but that's not important) that I connect to the Raspberry Pi via ...
2
votes
0answers
469 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
votes
0answers
242 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 ...
2
votes
0answers
380 views

Slow pip Raspberry PI 1

i have a issue with slow pip on Raspberry PI 1 on fresh install Raspbian Stretch. When i ran pip freeze it take a long time. pi@raspberrypi:~ $ time pip freeze > /dev/null real 0m43.337s user ...
2
votes
0answers
137 views

Playmouth ignores the current theme

On startup Plymouth 0.9.2, on Raspbian Stretch, always shows the "text" theme (three square dots) regardless the current theme settings. In fact I have: $ plymouth-set-default-theme mark1 $ cat /...
2
votes
0answers
56 views

How to manually adjust system clock for testing purposes

I have written a Python script that is set to run different functions at different days/times. I would like to test it by setting the system clock to 1-2 minutes before the dates/times that the Python ...
2
votes
0answers
3k views

Raspberry Pi 3 doesn't detect USB touchscreen

I've been trying to get a touchscreen monitor to work with my Raspberry Pi 3. The monitor is 15", externally powered, and is to be connected via HDMI and USB for the touchscreen interface. The HDMI ...