Questions tagged [raspberry-pi-desktop]

For question about Debian with Raspberry Pi Desktop - a operating system for PC and Mac with the Raspbian Look&Feel. Runs from a live disc, in a virtual machine, or installed on a computer.

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usb-c Port of RasPi 4 used for anything else but Power?

Can the usb-c Port of RasPi 4 used for anything else but Power ?
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2answers
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How to stream RaspiCam video on webpage on Django server running on other PC?

Hey I wanted to stream rpi cam live footage to a webpage hosted on django server running onther Pc.Any suggestions on how to do it.Thanks.
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How to continuously check Pin status in infinite while loop

I am working with Raspberry Pi 4 and using python for some project. The sample code is as below: while True: if( GPIO.input(a)==GPIO.LOW): if __name == '__main__': try: ...
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Is it possible to record the screen and Audio on a Raspberry Pi 4 model B

I wanna record my screen and audio, Is It Possible? how to do that? I use Raspberry Pi 4 Model B. I still new, I hope you can help. thanks.
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Turn Raspberry Pi into smart home touch panel

So, what I want to do is turn my raspberry pi into a device that I can control my smart lights from Magic Home (IFTTT Magic Hue) and Smart Life. I want to know if I ca make a webpage or local page on ...
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32 views

PIVPN with Wireguards - Hide IP

i have a question: i installed PIVPN with Wireguard protocol. From my mobile phone, my endpoint is the my ip public and with a specific port, I reach out my VPN. Perfect! My data are encrypted between ...
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Samsung Flip + Raspberry Pi 3

I have started to work with a brand new Samsung Flip digital paperboard (WM55H). This device works well with my laptop (WIN10) but i would like to have another PC connected to the screen in any ...
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42 views

QEMU emulator window is not showing up

I am trying to run custom kernel on QEMU emulator version 2.11.0. Compilation done successfully but QEMU emulation window is not showing up. Should I use different QEMU emulator version? I am on ...
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196 views

Can't get OpenCV up'n'running in Raspberry Pi, what should I do? (details in the description)

I followed the whole tutorial (https://www.deciphertechnic.com/install-opencv-python-on-raspberry-pi/) line by line, but at the end when I imported the OpenCV library in Python CLI, it gave this error:...
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232 views

Why won't my TV see the Raspberry Pi 4 as a source

I recently got a Raspberry Pi 4B and i used a 128GB MicroSD card and copied over the files from Noobs 3.2.1. I connected the MicroHDMI > HDMI to my TV and connected the power adapter and turned it on. ...
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Need troubleshoot fix my Raspberri Pi camera

So my MotionEye setup works fine, but after like 24 hours everyday, when I go connect the IP address it won't connect for some reason... And I can see that the Raspberry Pi3 and the Camera is working, ...
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Permanent Arduino usb address on RPi!

So my project is using to Arduinos slaves to RPI that is master. They communicate through USB. Each time I remove one of the Arduinos I need to modify the .Py script to add the new USB alocated. Is ...
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33 views

Is my PI 3 B+ fine after this odd short-circuit behaviour?

I know that anything more than 5v touches any GPIO then it's dead but I was changing the wiring and accidentally plugged a 12v 2A (for motor supply) connector to a female connector which leads to GPIO ...
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292 views

Is the Debian with Raspberry Pi Desktop available as a 64bit download

I downloaded the Debian with Raspberry Pi Desktop to install on my laptop so I had the same environment on my laptop and Raspberry Pis. However, I find that the installed Java version is a 32 bit ...
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picamera incorrect buffer length

I am currently using a pi camera module to stream video using flask and at some point, it randomly crashes. I found a similar question over here and they say that clearing the stream helped them sort ...
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141 views

Video playback on Raspberry Pi 3

I have a raspberry pi 3 connected to one of my TV's HDMI inputs. I've installed VLC, but videos won't play. The image will hang and the audio will continue to play in the background. Regardless of ...
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28 views

More Fingerprint IDs in r307 Finger Print sensor

I am using PyFingerprint python library. It's finerprintID storage capacity is 1000. How can store more than 1000 fingerprint IDs ? my fingerprint sensor is r307
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294 views

What is the easiest way to set static ip in raspberry Pi?

I want to do port fowarding of my raspberry Pi, so first I need to set static ip. I searched in Google but didn't find any easy answer.
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How to set the USB port name in raspberry pi 3?

I'm using 2 ports such as /dev/ttyUSB0 and /dev/ttyACM0, but when I remove one of this ports and put it again, the port's identification changes. How can I force a name to my fisical port in order to ...
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249 views

How to install gcc 7 and g++ 7 on NOOBS_v3_2_1 version..?

The preinstalled gcc version on Noobs 3_2_1 is 8.3.0. I would like to downgrade or install 7.4.0 version on it. When i try to run sudo apt-get install gcc-7.4 I get Below error. E: Unable to ...
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34 views

Green light always on after a while for Raspberry pi 3 Model B V 1.2 2015

I boot the raspberry pi correctly, the red light is on (solid light) and the green light blinks. After a while, (it can be few hours or a couple of days) the green light stays solid and it does not ...
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62 views

How to change back in default raspbian desktop preference?

This is what I did, I changed something in the repository listing and my desktop suddenly changed after a reboot. It looks good now but it is using more processor and increasing the heat of my board. ...
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1answer
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Boot time problem

i want to reduce boot time on my Raspberry Pi 3B+. I'm using this tutorial http://himeshp.blogspot.com/2018/08/fast-boot-with-raspberry-pi.html and i done 1,2 and 3 step. After this i reboot Pi and ...
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127 views

Help need with python script for PiCamera

I am working with the Raspberry Pi camera and need some help regarding the python script. I need to capture a set of 5 images continuously every 5 minutes interval until I want it to stop. This set of ...
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1answer
156 views

Run python script on Raspbian desktop through ssh access

I have a RaspberryPi with a PiTFT 3.5 display connected. The display is configured to mirror the HDMI output and the Pi is running Raspbian desktop. Now what I am trying to do is to run a python ...
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What can I use to program a Raspberry Pi 3 board like an Arduino board?

I have a Raspberry Pi 3 board. I want to use it like an Arduino Uno board. My problem is very simple in that, I used 'Arduino' software to link with my Arduino Uno/Nano boards to blink LEDs. I have ...
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Running a visual studio 2019 c++ code with cryptopp library on raspberrypi for performance analysis

I've written a code in visual studio 2019 in c++ language and it involves various cryptographic mechanisms. It also includes Elliptic curve library named cryptopp. I want to simulate and test the ...
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37 views

Command to verify that desktop is loaded completely [closed]

What is the terminal command that verifies RaspbianOS is loaded completely? Any other command that does not return the value unless the environment is loaded is fine also?
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42 views

How does the RPi Boot work?

I am a complete beginner in Raspberry pi and have very little knowledge of the Operating system. So to put on the OS on my new Raspberry Pi I come across the "RPi Boot". When I follow the steps as: ...
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57 views

PIGPIO not detecting I2C device but i2cdetect -y 1 detects it and I can even run my codes well in SMBUS

I have a Raspberry Pi 3 Model B+. My I2C device which is this (exact breakout board) isn't getting detected through PIGPIO Library. The sensor works very well with the example codes which uses SMBUS ...
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34 views

MFRC522 and Bluetooth not work together

I have a program in which I use pyqt5, MFRC522 and bluetooth. I have 3 threads, one for the interface, one for the MFRC522 and one for the bluetooth. If I run the MFRC522 and the bluetooth separately ...
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109 views

Raspberry Pi 4B no video - xorg fail

I have Rapsberry pi 4B with 2GB of RAM. After some time I powered up Pi but not video output was shown. So I connected via ssh but there is no :0: 16:02:32 up 13 min, 2 users, load average: 0.00, ...
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253 views

Can I connect CJMCU-4541 MICS-4514 Carbon Monoxide Nitrogen Oxygen Sensor with Raspberry Pi zero

This sensor CJMCU MICS-4514 Carbon Monoxide Nitrogen Oxygen Sensor is arduino compatible can it be used with raspberry pi
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1answer
251 views

symbol lookup error: undefined symbol: _ZN7QWidget8qwsEventEP8QWSEvent

I have cross-compiled executable file from QT 4.8.7. I am running it on a Raspberry PI (Ubuntu), with QT 4.8.7 and QT declarative module installed. When i run the executable file on my raspberry pi, i ...
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“Native” armhf/armv7/aarch64 Raspbian environment on x86 pc/virtualbox?

I am very encouraged in development of some specific software to run on RPi 3B or higher, BUT it is quite a pain to test it in qemu with max of 256m ram and single core "verstatilepb" setup while ...
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42 views

How do I cron schedule a playlist shortcut on my desktop

How do I trigger a shortcut "My_Favourites.xspf" that lives on my desktop. I would like to start playing this playlist of music in the morning to wake me up. Just to explain better: When I double ...
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28 views

Could I use Processing.py to display text and shapes on a Waveshare ePaper display?

I am new to Raspberry Pi and programming in general. I have very basic knowledge on Processing.py and I would like to know is it possible I could use this library to display shapes and text on a ...
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36 views

Desktop text shadow

Is there a way to enable desktop text shadow in Raspbian’s DE (and specifically the pcmanfm which is being used to display desktop icons)? I only managed to find this solution which describes the way ...
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2answers
553 views

What is the value for gpu_mem using Raspbian Buster?

I have installed Raspbian Buster on a Raspberry Pi 3B+ and would like to set the gpu_mem to the value for the best performance. When I set it to 32, VLC would crash with no logged errors. After ...
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2answers
144 views

Configuring raspberry Pi as a gateway of an ad-hoc network

I am trying to configure multiple Wireless interface in Raspberry Pi Stretch. The objective is to allow an ad-hoc network to access the internet through that Pi device. For that I need to configure ...
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36 views

Remote Desktop Connection not working on Raspberry Pi 3B+

I had tried: $ sudo apt-get install tightvncserver and $ sudo apt-get install xrdp and it worked however, after turning off the Pi and coming back it no longer worked. I then tried: $ sudo apt-...
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31 views

wireless display for MAC

I have a MAC and I am looking to add two additional displays to my laptop without having to run cables to it. Is there an app or something I can install on my Raspberry pi to be able to use it as a ...
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1answer
2k views

Auto-execute desktop shortcut problem

I have created file /home/pi/Desktop/DecoderPro.desktop with the contents [Desktop Entry] Type=Application Encoding=UTF-8 Name=DecoderPro Comment=JMRI DecoderPro Icon=/home/pi/JMRI/resources/...
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96 views

cv2.namedWindow freezes in Raspberry Pi 4

I'm trying to open a namedWindow using openCV in raspberry pi but it freezes after cv2.namedWindow("image")line. However, the project works in Windows. Before it freezes it prints the following ...
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40 views

Raspbian boot options: Desktop autologin

I was installing dlib to my raspberry pi 3b+. I changed the swap file size from 100mb to 1024mb in the "/etc/dphys-swapfile" file. After this, I changed the boot menu option to directly start the ...
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1answer
160 views

Running Hologram cellular network from startup issues [cannot run on rc.local or .bashrc]

I’m playing around with the hologram Nova cellular USB kit and I’m trying to create an automatic connection using the /etc/rc.local file. Hologram uses it's own way of connecting to a ppp0 network ...
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2answers
136 views

Ethernet communication Raspberry PI and windows PC

I am working on project which involves sending datastream from raspberry pi to Windows PC. This should only be done through Ethernet link. I looked for ethernet libraries but i did not find any. Also ...
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1answer
110 views

How to connect 3V3 UART logic level to the 5 V RS232 C logic level?

How to connect the 3.3 V Raspberry Pi UART logic level to the 5 volt RS232 C logic level?
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1answer
29 views

Connecting Raspberry Pi to SFM3520-OP fingerprint module

I want to connect an SFM3520-OP fingerprint module with the RS232C serial port to the Raspberry Pi UART but I am doubtful about their logic level. Should I use a Max2323 or does it not need it?
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1answer
227 views

Open in Terminal in Raspbian

How can I get the "Open in Terminal" Option when I right click in Raspbian OS ? It opens the terminal in the current directory.