Questions tagged [raspberry-pi]

Ultra low-cost computer the size of a credit card. Also check the Raspberry Pi SE: http://raspberrypi.stackexchange.com/

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Raspberry Pi won't bring up wlanX interface - multiple wireless interfaces

Let me jump straight in. I am using a raspberry pi 3 running latest version of raspbian (pixel) as a router/wifi hotspot I have 3 wireless interfaces: built in wifi interface (brcmfmac) TP-Link ...
CybeX's user avatar
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9 votes
1 answer
3k views

Raspberry pi wpa_supplicant can't connect on a specific wifi. CTRL-EVENT-ASSOC-REJECT status_code = 16

I'm having trouble connecting to a specific wifi using raspberry pi. Here is the output when I check /var/log/syslog: Jun 19 09:44:52 raspberrypi wpa_supplicant[447]: wlan0: Trying to associate with ...
vanir's user avatar
  • 201
8 votes
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8k views

Does Raspberry Pi 4 support AES hardware acceleration?

I have Raspberry Pi 4 B (4GB version), I wonder if it supports AES hardware acceleration (so some special instruction set for CPU for faster encryption). According to https://en.wikipedia.org/wiki/...
tomsk's user avatar
  • 219
8 votes
1 answer
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dd always fails to write one partition on first try; succeeds on second

For a robotics project, I've assembled a make target that uses dd (actually dcfldd) to write a Raspbian Jessie image to SD card. This way, I can be assured that my environment is reproducible from ...
tsbertalan's user avatar
7 votes
1 answer
3k views

How to install the Ubuntu OS in Orange Pi 4G IoT?

I have recently buy an Orange Pi 4G IoT and I have installed the Android 6.0 successfully. But for my project need I want to install the Ubuntu OS in it. Can anyone help me. Previous Work Download ...
ram786kumar's user avatar
6 votes
0 answers
2k views

losetup refuses to detach

I've done the following several times, but now it doesn't work anymore: downloaded the latest Raspbian image qemu-img resize 2017-06-21-raspbian-jessie-lite.img +300M sudo losetup -P /dev/loop0 2017-...
Mark's user avatar
  • 438
5 votes
0 answers
3k views

Install Shiny Server and Rstudio Server on Raspberry Pi 3

I'm trying to install Rstudio server and shiny server in Raspberry Pi 3. It has a ARM architecture which is same as many chromebooks. There are serveral sources I've found but non of them seems to ...
Aritra Biswas's user avatar
4 votes
0 answers
3k views

Compile ffmpeg with mmal

I'm trying to compile ffmpeg with omx and mmal support for the raspberry pi zero on Debian Jessie. Omx seems fine and I got the headers from libomxil-bellagio-dev as per this stack overflow answer ...
CWright's user avatar
  • 153
4 votes
1 answer
6k views

Software adjustment of LCD monitor brightness in Raspberry Pi

This is my first post here. I'm at the beginning of the road called Raspberry Pi. Is there any way of changing the gamma/contrast/brightness of monitor via Raspberry Pi? My Samsung 960BF doesn't ...
tarzanno's user avatar
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4 votes
0 answers
4k views

ALSA buffer xrun when recording with ffmpeg

Is there any way to increase the ALSA buffer size? When running this command: ffmpeg -f alsa -ac 2 -i hw:1 -ar 44100 -b 64k output.mp3 I get a "ALSA buffer xrun" before my system locks up Input #0,...
hinekyle's user avatar
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3 votes
0 answers
126 views

No ping6 btween devices, 6lowpan network with raspberry pi

I am trying to make a 6lowpan network with raspberry pi device(s) and embedded systems. I enabled bluetooth_6lowpan (modprobe bluetooth_6lowpan and echo 1 > /sys/kernel/debug/bluetooth/...
Ras's user avatar
  • 31
3 votes
1 answer
979 views

Raspbian : Failed to change fw-clk-arm frequency

When I boot my raspberry pi 3B+ with raspbian, it seems to try to change the clock frequency, but it failed. And the system loop at this state of boot. Raspberrypi-clk soc:firmware:clocks: failed to ...
Mathias's user avatar
  • 31
3 votes
0 answers
623 views

Raspberry Pi Zero as boot keyboard USB gadget

I am trying to turn Raspberry Pi Zero W as a "boot compatible" keyboard (USB gadget). I've followed this tutorial to make it work in OS, i.e. when plugged into a Mac computer that has been powered on ...
Charlotte J.'s user avatar
3 votes
1 answer
856 views

miniDLNA (ReadyMedia) disconnects after few minutes

I'm using miniDLNA on my Pi 3 and I'm encountering weird issues that I've never encountered before, after setting up the Pi from scratch. Setup Pi connected via internal WiFi and via ethernet DLNA ...
Sebastian Schlicht's user avatar
3 votes
2 answers
3k views

Trying to connect to Tripplite Smart1500LCD UPS with NUT on Raspberry Pi 3 B+ via USB. The device keeps disconnecting and reconnecting

I have 2 Tripplite Smart1500LCD UPSes and 2 Raspberry Pi 3 B+ boards running Raspbian GNU/Linux 9 with kernel 4.14.79-v7+. I am experiencing the same problem with both Pis with both UPSes. I am using ...
rogue780's user avatar
3 votes
1 answer
4k views

How to wait for a USB flash drive to be mounted/present before running .services file (systemd)?

I'm making a marquee with a Raspberry Pi where the images for the marquee are on a USB stick and the Python file that is the marquee is on the Raspberry Pi itself (RPi Zero W running Raspbian). I'm ...
meabster's user avatar
3 votes
0 answers
928 views

Emulate Raspberry Pi architecture on a personal computer

Is there a way to create a virtual ARM architecture machine so that I could create Raspberry Pi images on my PC? For instance, I would like to create an Ubuntu Server 17.04 image that I could burn to ...
abalter's user avatar
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3 votes
0 answers
2k views

How to clean up a failed pip installed app?

I was trying to install flask onto a Raspberry Pi Raspbian using pip-3.2 install flask. However, the installation failed. I tried to uninstall using pip-3.2 uninstall flask. It said "Successfully ...
Old Geezer's user avatar
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3 votes
2 answers
11k views

Getting TP-Link WN722N to work on RPi OpenWRT

I'm trying to create my own wireless router using a Raspberry Pi 2 and a TP-Link WN722N. I have OpenWRT running off the MicroSD card and I have installed LuCI, but I need to install the wireless card ...
user3617429's user avatar
3 votes
0 answers
955 views

How to create blank audio file in FFMPEG?

I am creating a project associated with using Sony ILCE-6000 with its remotely controlled functions. I have found such method of controlling camera with command line: https://github.com/tonytonyjan/...
Arri's user avatar
  • 31
3 votes
0 answers
1k views

raspberry pi openelec: how to connect via wifi with an ssid with spaces and special characters

device: Raspberry Pi Mod. B Rev 2.0 512 MB RAM wifi stick: EDIMAX EW-7811UN Wireless USB Adapter, 150 Mbit/s OS: openelec (XBMC) ssid: FRITZ!Box Fon WLAN 7270 How can I connect to wireless lan with a ...
HSOS's user avatar
  • 31
3 votes
1 answer
420 views

How can I safely shutdown a network-bridged pi without a keyboard?

So I've got a raspberry pi that bridges wlan0 and eth0 so an old xbox can have wifi, yay! The bridging happens at startup through a script I wrote that reads a file to decide whether or not to bridge. ...
Calvin Flegal's user avatar
3 votes
1 answer
2k views

Raspberry Pi: open browser using bash and crontab

I'm trying to setup a simple bash script. I want to open the browser. chromium-browser <url> works if I do it in the cli or in the bash script if I run the script by ./scrpt. But if I put ...
wlraider70's user avatar
3 votes
0 answers
1k views

Sending text messages from Raspberry Pi via email fails

I'm using mailx on my raspberry pi to try to send text messages updates for event monitoring. My phone number:9876543210 My phone's email-to-text gateway address: [email protected] I can Send ...
physicsmichael's user avatar
3 votes
1 answer
847 views

Using Raspberry PI as OpenVPN router for Asterisk

So, I've been banging my head with this for quite some time. I have the following configuration: OpenVPN server, IP 1.2.3.1 Asterisk server, connected to OpenVPN server, IP 1.2.3.3 Raspberry PI, ...
dkasipovic's user avatar
3 votes
1 answer
5k views

Raspberry Pi bluetooth tether to android phone for internet

I want to tether my Android phone to my raspberry pi to share Wi-Fi connection between them so I can easily open an ssh on my phone from the Pi. I got Bluetooth paired, my phone is set to share ...
E. Pence's user avatar
2 votes
0 answers
484 views

Stream copy USB webcam on remote Raspberry Pi to FFmpeg on Windows 11 via FFmpeg, mediamtx, ncat, piping, tunneling or any combination thereof?

Question How do I stream copy raw video and audio from a USB webcam on a remote Raspberry Pi 4B running Raspberry Pi OS to FFmpeg (or a file!) on a machine running Windows 11 via FFmpeg, mediamtx, ...
CupNoodleFanatic's user avatar
2 votes
0 answers
375 views

h264_omx not working with Raspberry Pi on aiortc

I am trying to use the h264_omx encoding on the RPI, but I get this error: [h264_omx @ 0x68500890] libOMX_Core.so not found [h264_omx @ 0x68500890] libOmxCore.so not found [libx264 @ 0x68502040] using ...
elia's user avatar
  • 21
2 votes
0 answers
218 views

fstab entry for external nextcloud drive is not working

I'm pretty desperate right now... I just want my external hard drive to automount when I reboot my raspberry pi, but the fstab entry is not working and I don't know why. Here is my fstab: PARTUUID=...
Tim K's user avatar
  • 21
2 votes
1 answer
7k views

wpa_supplicant disconnects with reason=3 on connection

I am using a raspberry pi 4 to connect to my college network (so using WPA-Enterprise using PEAP) using wpa_supplicant when I run the command, sudo wpa_supplicant -c/etc/wpa_supplicant/wpa_supplicant....
gfaster's user avatar
  • 21
2 votes
0 answers
6k views

Raspberry Pi 4 Linux GPU Memory for 2D and 3D Graphics

I have a Raspberry Pi 4 8GB running Raspberry Pi OS and Lakka, installed on separate SD cards. I'm trying to set the optimal value for the GPU Memory allocation gpu_mem for improved 2D game ...
Matt McManis's user avatar
2 votes
0 answers
89 views

Can a non-broken switch cause issues connecting to a server attached to it?

long time reader, first time poster here. I'm experiencing connectivity issues with a server. Here's the background story: I have a small Raspberry Pi 3 Model B acting as a server running a Nextcloud ...
Intronaut's user avatar
2 votes
0 answers
446 views

Most efficient way to combine video and audio in real time with ffmpeg?

I'm trying to capture and combine webcam video and (separate) USB microphone audio on a not-super-fast machine (Raspberry Pi 4B). If I capture separately, everything goes smoothly and I use only a ...
Kevin Walker's user avatar
2 votes
0 answers
988 views

nfs server on linux with windows 10 client

I have a nfs server on a raspberry pi 3 b+, that share an ext4 directory. The nfs client is a windows 10 computer. I have a problem with filename characters encoding on client side. All accent ...
geo667's user avatar
  • 131
2 votes
0 answers
4k views

sshd: Connection reset by IP [preauth]

Initial Post here (closed as not relevant to ServerFault) I have a raspberry pi with only Key based authentication enabled. When I try to ssh to it using the local IP, it works. But when I try to ...
Kunal's user avatar
  • 21
2 votes
1 answer
556 views

How can I get feh image viewer to view Windows PC networked files?

I have a raspberry pi and use the feh image viewer https://feh.finalrewind.org/ This works great when my photos are on USB. I would now like to access my photos via LAN instead from a Windows PC. I ...
user370's user avatar
  • 143
2 votes
0 answers
91 views

Reverse ssh to Cloud server from Raspberry

I have a use case where I have 6 of my raspberry pi sitting behind a private firewall and I need access to them from my local systems. So I came up with a architecture shown below From my rpi reverse ...
Lokesh Waran's user avatar
2 votes
0 answers
64 views

Bluetooth not founded - Raspberry Pi 3 B + connection with IoS devices

What is the procedure to enable Raspberry Pi 3 B+ for send and receive data with IoS Devices? I developed an application, that enables the raspberry bluetooth to receive network configurations and ...
Felipe Crispim's user avatar
2 votes
0 answers
265 views

Port Forwarding when using a Bridge and IPTables

I have a Raspberry Pi that I am using as a bridge to allow it to act as a router to devices attached to it either via a physical port (eth0) or a wireless connection (wlan0). The Raspberry Pi has a 4G ...
BoggyBumblebee's user avatar
2 votes
0 answers
391 views

ssh X11 Forwarding will not display Mac OS X Apps on Raspberry PI

I'm trying to remotely run some apps from my Min Mac running Mojave and a raspberry pi 4. When I run ssh -Y from my raspberry pi to the mac I get and error stating X11 forwarding request failed on ...
user2461513's user avatar
2 votes
0 answers
4k views

ALSA Error: ALSA lib pcm_hw.c:1713:(_snd_pcm_hw_open) Invalid value for card

Hey there dear community, I have been struggling with getting a Raspberry 3b+ and microphone setup to run for a few days now, interestingly getting the same error on both projects simultaneously even ...
de-recode's user avatar
2 votes
0 answers
160 views

Udev, scripts and permission

Founds lots of other posts with "similar" problems, but none that are actually close to the issue I have. Raspberry PI Raspian. My Udev rule: SUBSYSTEM=="block", ACTION=="add", RUN+="/bin/bash usr/...
Peter Longfield's user avatar
2 votes
0 answers
423 views

Raspberry Pi streaming video - stream is accessible locally, but port forwarding is not working

What I'm trying to do: Stream video from a Raspberry Pi connected to a mifi router, and access the stream from a different network using port forwarding. What I've done: I'm running motion on a ...
Matthew Jouffray's user avatar
2 votes
0 answers
3k views

SSH Connection Timed Out

I have an SSH server running on my Raspberry Pi at home, and I'am trying to connect from school network on a Windows 10 machine. Note that I installed the OpenSSH binaries on github, which are labeled ...
Gabe's user avatar
  • 21
2 votes
0 answers
736 views

PJSIP PJSUA python no sound but call OK on Raspberry

I have an Asterisk server on one Rasp and on another I would like to make a SIP client. To do this, I installed PJSIP, and I found this little code from their tutorial to make a phone call. I ...
Oliver's user avatar
  • 21
2 votes
1 answer
2k views

Viewing H.264 bitstream in browser using ffmpeg to ffserver

This is a followup to https://raspberrypi.stackexchange.com/questions/93254/stream-usb-webcam-with-audio?noredirect=1#comment150507_93254 I, like many other brave tinkerers before me, thought it ...
BobtheMagicMoose's user avatar
2 votes
0 answers
65 views

Raspberry Pi OpenVPN - Clients unable to see network devices

I have completed the setup of OpenVpn on my raspberry pi. I am able to connect successfully and access the internet as if I'm browsing from home. My problem is that I have a network share that I want ...
A.F17's user avatar
  • 21
2 votes
0 answers
167 views

SD Card random bit error on reading, no failure

I have a deployment of some 20 Raspberry Pis with Kingston 16 GB Micro SD HC Class 10 U1 cards in them, all cloned from identical customised Raspbian image. Small text on the card says: SDC10B2/16GB ...
Laas's user avatar
  • 121
2 votes
0 answers
538 views

Dockerizing VNC and xeyes together as proof of concept, not working

I've been trying to dockerize the xeyes app just to test. I know there are other ways to run things in raspberry pi but I needed a self contained image that doesn't rely on the machine's X11. I had to ...
PPP's user avatar
  • 93
2 votes
0 answers
439 views

Can I setup something like Cloudflare's Argo between a VPS and a Raspberry Pi?

I have an AWS Lightsail server and I want to setup something like Cloudflare's Argo Tunnel between my server and a Raspberry Pi on my home LAN. Is there any existing software that allows me to do that?...
nom's user avatar
  • 219

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