Questions tagged [pi-4]

For questions that apply specifically to the Raspberry Pi 4 and not other/all models.

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12 views

Arm frequency capped vs currently throttled

According to documentation vcgencmd get_throttled can inform about 4 states: under-voltage arm frequency capped throttled soft temperature limit active (from my understanding of this: non-existent in ...
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3answers
18 views

How to set up a static ip in a Raspberry pi which is connected via mobile data?

Here is the scenario: I have a raspberry pi that is connected to the internet via Mobile hotspot.The hotspot uses mobile data from my Android.Everytime I turn off my mobile data, the ip changes.So I ...
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1answer
41 views

Will thermal paste help in cooling down the CPU of my Pi 4 even further?

I have the latest Raspberry Pi 4 (8gb edition), I'm using my Pi as a server to host a website, and to host a Discord bot that is being used in more than ~800 servers right now. I overclocked my Pi, ...
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1answer
24 views

RPi4 doesn’t output through HDMI extender cable

I’ve got a Raspberry Pi 4 running Raspberry Pi OS, an HDMI monitor, and a female-male HDMI panel mount cable connected to an HDMI-micro HDMI adapter. When I hook my monitor up to the extension cable, ...
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0answers
31 views

Raspberry Pi 4 7inch HDMI touchscreen issues

I am using 7 inch HDMI touch screen with Raspberry Pi 4. I am having below issues: I have connected the HDMI cable to the touchscreen and connected the mini hdmi to hdmi0 of pi. I have also connected ...
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0answers
29 views

Does raspberry 4 need cooling? [duplicate]

I got RPi 4 (4GB), with official case and power supply, updated to latest eeprom BCM2711 detected Dedicated VL805 EEPROM detected BOOTLOADER: up-to-date CURRENT: Thu Apr 16 17:11:26 UTC 2020 (...
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1answer
19 views

Raspberry pi Touchscreen CSI to HDMI extension

I need to connect my raspberry pi 7 inch touchscreen to my raspberry pi board from a distance of 5m, so I bought some CSI/HDMI extensions that seem to work great with a 1m cable, but when I try o ...
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0answers
42 views

All in one Raspberry pi Server?

Does Grafana server + influxDB + ChirpStack Gateway OS full runs on same Raspberry pi that RAK2245 mounted gateway? As you know latest raspberry pi 4 have 8gb ram. I will only monitor about 20-30 ...
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0answers
28 views

Artifactory Installation on Raspberry Pi 4

I have been trying to install Artifactory OSS on my new Raspberry Pi 4 (raspbian), but no luck so far. I tried all the following ways as suggested here but nothing worked. Archive Installation Docker ...
1
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1answer
15 views

Rasbian WebDav-Client davfs2: Create folder successfully, but files won't

Dear specialists :) , I got a lot of help during the last month from this forum but this time I can't find the right thread. Problem: I had connected a WebDav-Connection to the https://dav.mailbox....
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0answers
21 views

Raspberry 4 not booting - green and red light not blinking - sd card problem?

My raspberry 4 bought on amazon doesn't want to boot, both red and green light are on but none of them are blinking even when plug / unplug the sd card, no reaction from the raspberry, my screen ...
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0answers
17 views

pi 4 freezing when i try to open openshot or vlc media player

I have watched my cpu and memory usage when try to open these apps cpu does not go above 20 % memory stays in the hundreds. I also tested my sd card and it passed. I have this problem with two units.
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1answer
23 views

broken apt update due to change of sources.list

pi@raspberrypi:~ $ sudo apt update Get 1http://archive.raspberrypi.org/debian buster InRelease [32.6 kB] Get:2 http://raspbian.raspberrypi.org/raspbian buster InRelease [15.0 kB] ...
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3answers
31 views

How to install Oracle JDK 14 on my Rasberry Pi 4B?

I'm trying to install jdk 14 on my raspbian pi 4b but all tutorials either show how to download open-jdk or how to download an old oracle jdk version. I've already tried to install the .deb file ...
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2answers
33 views

Pi 4 Boot problems, no LEDs [closed]

I am new to Pi's and have just bought a Pi 4 with a 64Gb card - bought as a complete package The fan works but there are no green or red LEDs lit on the board There is also no HDMI output What is the ...
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0answers
27 views

Failed to start Load Kernel Modules for installing Ubuntu 18.04 on Raspberry 4

I tried to install Ubuntu 18.04 on Pi4. I followed the link from ubuntu for pi. After inserting the SD card with Ubuntu image, the error appeared after few lines with [FAILED] Failed to start Load ...
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1answer
47 views

Running a program on boot (Pi 4)

I have been trying to get a program to start automatically on boot. I have tried using systemd, init.d, rc.local, and cron to execute my bash script in order to invoke a program (e.g. open an instance ...
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0answers
23 views

Can we surf/work comfortably on kaggle.com using a Raspberry Pi 4?

I was wondering if it was comfortable to work on kaggle.com from a Raspberry Pi 4. I remember using a live version of Puppy Linux from a usb stick(because my HDD died) to work on kaggle.com. I was ...
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1answer
30 views

How to restore audio output after updating Raspbian Buster on Pi4

Yesterday I did: sudo apt update sudo apt upgrade After reboot I lost my audio output. Whatever I did, it didn't come back. As far as I can tell, something messed up ALSA. I had the output through 3....
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1answer
16 views

Smartphone Camera Module as Camera for Raspberry pi

I wanted to ask if it was possible to hook the Camera of my old Galaxy J5 2016 (Picture) up with the Raspberry Pi. The Connector has 17 pins on each side and should be CIS. On the back of the Camera ...
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1answer
35 views

Using of GPIO0 and GPIO1 on Raspberry Pi 4B

I have built customize image using yocto for Rpi 4B. I want to use GPIO0 and GPIO1 as input/output with /sys/class interface Can I use them? I don't need any Rpi HAT or EEPROM. I have googled so ...
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0answers
22 views

practical RAM recommendation for RaspBian web browser? (2Gbytes or 4GBytes)

I am considering using some RaspBerry model for an Linux system which would be occasionally used to browse the web. Let's assume I just want to run a recent Firefox (e.g. 68) with half a dozen of web ...
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0answers
41 views

Ubuntu 20.04/gnome wifi and bluetooth in Settings

Pi4 4Gb with Ubuntu 20.04 64b (flashed from Raspberry Pi Imager). Added minimal gnome after the install. When I go to Settings: Bluetooth says: "No Bluetooth installed. Plug in a dongle to use ...
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0answers
22 views

BluetoothError: (111, 'Connection refused')

I'm trying to connect raspberry pi 4 to my ubuntu laptop. I setup a rfcomm server on my laptop, the code is given below: import bluetooth server_sock = bluetooth.BluetoothSocket(bluetooth.RFCOMM) ...
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1answer
20 views

DietPi xfce doesn't show USB Device what SD connected [closed]

DietPi xfce doesn't show USB Device what SD connected! I am using USB Device what SD connected, but xfce doesn't show Devices. I check using lsusb but Device name was appeard. Other OS like ...
2
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0answers
22 views

No color using windows SSH terminal on Pi4

I have a Pi3 and PiZero. When I open up a Terminal window in Windows and SSH into the Pi4, the text is not color coded like on my Pi3 and PiZ. It appears that the .bashrc files are the same per a ...
2
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1answer
57 views

Issues installing RTL8812BU WiFi driver on Raspberry Pi 4 B

Recently, I bought a USB3 WiFi adapter with the RTL8812BU chip (Supports Linux). I have spent 5 hours so far trying to install the Linux driver for the chip on my Raspberry Pi 4. Apparently, I am not ...
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1answer
35 views

Raspberry Pi 4 Fails to Get New IP for ethernet, does so successfully for WiFi

I just recently had a router fail so I utilised an older router in its place. Failed router was giving out IP addresses from 192.168.1.2-192.168.1.254, and from that router I had reserved 192.168.1....
1
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1answer
25 views

Cannot connect RabbitMQ server from client side

I followed this link to install RabbitMQ server on my Raspberry Pi 4. I can see that RabbitMQ 3.7.8 and Erlang 21.2.6 are installed. But I cannot connect to the server from a client (Mqtt Dash, ...
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1answer
10 views

Can't find ~/.config?

I'm trying to follow this tutorial: at one step I'm supposed to change the autostart file with this command: sudo nano ~/.config/lxsession/LXDE-pi/autostart but when I cd into my /home/pi folder (...
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1answer
40 views

Raspberry pi 4 4gb, raspbian buster, stalls every minute using external wifi dongle

I am having a strange issue with my Pi 4. Every minute around second 47, it 'stalls' for a few seconds, like some process is going on. The CPU spikes and pings to the router are delayed. I am running ...
1
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1answer
31 views

Can raspberry pi4 connect to 2 2.5inch laptop harddrives with a 5v2a power supply?

I have two spare laptop hard drives and I want to use them with my raspberry Pi4. I wonder if a 5v2a power supply enough to make them up and running. If a 5v2a power supply wasn't enough, which kind ...
2
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1answer
43 views

Schedule power off with systemd

I've enabled the following systemd unit file in order to properly shutdown my Raspberry Pi before a real timer in between cuts the power off. but it does a reboot, not the actual shutdown that I want. ...
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0answers
41 views

USB 3 device appears to be listed on the wrong bus

Environment: Pi 4, 2gig, Buster, updated. We have a USB 3 WiFi adapter (blue plug), which is plugged into one of the blue USB3 slots. The device vid/pid is: 0bda:b812, Realtek. Rated 867Mbps for ...
0
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1answer
29 views

How to turn WiFi hardware on and off without reboot from terminal on RPI?

As the WiFi hardware is working with 2.4GHz and and a more important device in my system is using the same frequency for broad casting, I would like to turn off the actual WiFi hardware for the ...
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0answers
41 views

SSH over internet on pi 4(connectivity using RF modem )

Sorry if I am asking a silly question as this is all new for me also read many questions here but bot find appropriate one that ans my problem Problem: I want access pi from another network over ...
0
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1answer
65 views

Youtube is very slow on Raspberry pi 4

I have raspberry pi 4 B 4GB model, and i installed ubuntu 64bit. When i watch youtube with 1080p, it lags a lot. I tried many things, I tried splitting memory, using chromium, I set chromium to use ...
0
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0answers
22 views

How to make cameras take picture simultaneously with a single button?

How can I make my pi's take pictures at the same time whenever I push a button? I've connected GPIO pin 2 to my button and a ground pin to the other end of the button for every pi. This is how I've ...
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1answer
33 views

Installing Steam on Raspbian won't work

I recently got my raspberry pi 4, and one of the first things I tried to do was install the Godot Game Engine, but I couldn't get the engine installed for some reason. So then I tried getting steam so ...
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0answers
20 views

How to bind raspberry pi bluetooth com ports to a /dev/rfcomm or /dev/ttry device

I have bluetooth device which on windows has 2 com ports com3 amd com4 I found the device using bluetoothctl agent on scan on pair ##:##:##:##:##:## rfcomm bind /dev/rfcomm0 00:16:A6:00:06:E6 ...
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0answers
21 views

TOR access point help [duplicate]

I tried to set up my raspberry Pi 4B as TOR enabled hotspot but none of the tutorials I follow work for me, maybe because they are all for older versions. Please keep in mind I am new to Raspberry and ...
0
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0answers
27 views

How to use/install raspberry pi camera on ubuntu os

I am wanting to use ubuntu v20.04 64 on my Raspberry Pi 4. I also what to be able to use the on-board camera. I have followed these steps to install and boot up my Rpi4 with Ubuntu: https://ubuntu....
3
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2answers
108 views

Questions about booting a Pi 4 of an SSD, what is the remaining load on the SD card and how to backup?

I just followed James' tutorial on how to run a Pi 4 off an SSD. jamesachambers.com I don't know enough about OS so the question for me is how is the SD card used after these modifications? From ...
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0answers
7 views

dbus and qdbus not working suddenly

I am using dbus and qdbus to control my phone from a pi using Bluetooth to pause play etc. songs and all of a sudden dbus and qdbus dont work anymore All other functions work i can head music from he ...
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0answers
27 views

Max refresh rate for raspberry pi 4?

I'm thinking of using a raspberry pi 4 as thin client for game streaming. I want to know what is the maximum refresh rate that the pi can reach at 1080p. I have searched a lot, but can´t find an ...
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0answers
25 views

My raspberryPi 4 starts up Kodi, and I don’t know how to switch to my desktop

The first time I installed the Noobs software. I would choose between raspian and openelec(kodi). Now this menu is gone and I don’t now how to get it back. I tried reinstalling but didn’t work either. ...
1
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1answer
26 views

How to let Raspberry 4 B stop spinning the external hard disk when there is no write or read request?

Device: Raspberry 4 B; OS: Arch Linux ARM; Interface: USB 3.0 I have a Raspberry and external HDD, all the stuff's details are above. I want to automatically suspend my hard disk (in order to ...
0
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1answer
27 views

Trying to use second sd card raspberry pi

I just got a new 64 GB micro sd card and installed NOOBS based off this tutorial (https://projects.raspberrypi.org/en/projects/noobs-install). I did not format it since I just bought the sd card and ...
0
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1answer
22 views

RPI 4 Vilros black screen on boot

I know lots of articles about black screen on boot. I bought this RPi4 kit from Amazon. Built the kit with no issue, plugged it into my 34" LG monitor, which supports 1080p along with a USB keyboard, ...
1
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0answers
18 views

Is it possible to connect two touch screens to the Pi 4

So I know the Pi 4 will support dual monitors out of the box no problem. I am wondering if it will support dual touch screens as well. If so is there any particular issues or configuration needed to ...

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