Unanswered Questions

9,694 questions with no upvoted or accepted answers
9 votes
0 answers
1k views

Cannot Use SPI frequency above 500 kHz

I am running Arch Linux ARM on a Raspberry Pi 2 Model B, and I am attempting to communicate with a TFT display. I am writing a kernel module to interface with the display using SPI, and it works, but ...
9 votes
1 answer
1k views

Autologin into a webpage via the default GNOME-Webbrowser

I'm trying to call an HTML page like this with the Raspbian's default web browser and it leads me just to the default login-page. Neither does it with Midori on the desktop. When calling the exact ...
7 votes
0 answers
1k views

connmanctl having problem with complex passphrase

The built in WiFi module seems to work fine, as it can connect to both of my open networks I created for testing, i.e. the 2.4GHz, and the 5.0GHz ones. If I set a simple passphrase (i.e. contains ...
6 votes
1 answer
1k views

Rasberry Pi zero and 3 bluetooth transfer speed is slow RFCOMM

I am trying to send a series of bytes from the Raspberry Pi zero W to the Raspberry pi 3 via bluetooth. Im using the PyBluez python package. I believe that Raspberry Pi Zero has Bluetooth 4.1 and ...
6 votes
2 answers
2k views

ffmpeg performance degrades over time

I am using a Pi Zero W with the Pi camera (noir) to stream live to Youtube using ffmpeg. The command line I am using is: raspivid -o - -t 0 -h 720 -w 1296 -fps 24 -b 6000000 | ./ffmpeg -ar 44100 -ac ...
5 votes
1 answer
2k views

Ubuntu 21.10 desktop environments freezing on Pi 400

I have created SD card with Ubuntu Desktop 21.10 using Pi Imager on Raspbian. It boots fine but when I interact with desktop environment, e.g. re-arrange the icons on the sidebar, the desktop ...
5 votes
0 answers
909 views

Docker Alpine:latest image fails to get date so everything fails

I just got a Raspberry pi 4 with 8GB and a SD. I ran all the updates and went directly to install docker and discovered that many images were randomly failing. I narrowed it down to the alpine:latest ...
5 votes
1 answer
2k views

spi-bcm2835 fe204000.spi: could not get clk: -517

I'm using Ubuntu Server 20.04 on a Raspberry Pi 4 8GB and shut it down normally yesterday it just says this error on screen when starting the kernel spi-bcm2835 fe204000.spi: could not get clk: -517. ...
5 votes
0 answers
267 views

Raspberry as I2C Slave, how to slow down transfer rate?

I have had minor success using the PIGPIO library and interfacing the Pi as an I2C Slave (Using GPIO Pins 18 and 19 as SDA and SCL) with a Campbell CR1000X Datalogger I am encountering a problem ...
5 votes
1 answer
17k views

wlan0: link is not ready

I have had my pi3 for a while now all of a sudden I start to get IPv6: ADDRCONF (NETDEV_UP): wlan0: link is not ready IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready and stalls there ...
5 votes
0 answers
1k views

Bluetooth PAN on the Pi Zero W

I have the following problem: I want to host a webserver on my Pi Zero W and access it over Bluetooth. To achieve this i tried to use PAN as underlying layer. The first time i followed this post. Most ...
5 votes
1 answer
2k views

Can I control GPIO Pins when using Android on the Pi 3?

I want to install Android on my Raspberry Pi for implementing a GUI app, which is easy to create using Android Studio. But now I am confused about how to control the GPIO pins on the Pi 3 to turn on ...
5 votes
0 answers
2k views

how to connect raspberry pi to google home app?

How am I to connect my Raspberry Pi 3 (PIXEL desktop) to the Google Home app if it already has Google assistant on it?
5 votes
0 answers
19k views

Bluetooth MAC Address Raspberry Pi 3

I'm trying to connect two raspberry pi 3 betweem them via bluetooth. But the fact is that their MAC addresses are AA:AA:AA:AA:AA:AA Does anyone knows how to assign them a real mac address in order ...
5 votes
1 answer
2k views

GY-521 module / MPU-6050 3x Accelerometer not detected by i2cdetect

I got this GY-521 module (https://www.aliexpress.com/item/MPU-6050-3-Axis-gyroscope-acce-lerometer-module-3V-5V-compatible-For-Arduino/2035920870.html?spm=2114.13010608.0.0.pRpLS4) and no matter what ...

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