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Unanswered Questions

1,308 questions with no upvoted or accepted answers
4 votes
1 answer
8k views

Alsa lib error pyaudio on raspberry pi 3

I'm getting these ALSA lib errors when trying to use pyaudio. I know my mic works as I can live stream audio through gstreamer. Can anybody explain to me why i'm getting these issues: ALSA lib ...
4 votes
0 answers
1k views

FT5406 touchscreen sends events but input does not work

I have a Raspi 3B with the official 7" touchscreen attached. The screen works (showed the under-voltage sign when attaching only the screen controller to a 2.1 A power supply, so I'm connecting ...
4 votes
0 answers
820 views

RPI 3B and Tiny Thermal Printer - Unable to use python library

I'm having trouble hooking up my Raspberry Pi 3 Model B to my Adafruit Tiny Thermal Printer (nb: not the mini thermal printer - this is the one with a mini-USB port built in). I've got it connected ...
4 votes
0 answers
480 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
0 answers
77 views

RPI(2) Bare Metal: does GPU support text mode and what is the default video mode?

I'm struggling with trying to find any information about text-mode capability in Raspberry Pi. I'm reading about decompression, 3d, etc. fancy features but I'd like to learn about fundamentals: Is ...
3 votes
0 answers
3k views

How to make sure BlueZ NoInputNoOutput agent does not ask for user authorization?

I am trying to pair my custom made BLE device with a Raspberry Pi 4, using the bluepy library, programmatically. I do not want to press "accept" or type "yes" whenever I try to ...
3 votes
0 answers
2k views

Error while Starting Raspbian

Enviroment: Device: Rasberry Pi 2 OS: Raspbian Last sign of life: 8.March 2021 Problem Since 8th of march I've got no message of my raspberry pi, so I get them and try to boot with a connected monitor....
3 votes
2 answers
8k views

PiHole Not Resolving Local DNS Entries for clients with static IPs

I have a Raspberry Pi 2 running Pi Hole 5.2.2 and Cisco Linksys E2000 router running DD-WRT v24-sp2 (08/12/10) std-usb-ftp I want to be able to have PiHole resolve a DNS entry such as MyDevice to an ...
3 votes
0 answers
533 views

Kivy on Raspberry Pi returning double on_press events

I have an RPi and official touchscreen running Debian Buster and Kivy v1.11.1 using the simple example at https://kivy.org/doc/stable/api-kivy.event.html it is returning double touch events for ...
3 votes
0 answers
203 views

ADXL345. Bits, resolution and g's

I have a Kistler type 8921 which produces 1g (10m/s2) RMS (at 159 Hz). The ADXL345/Raspberry Pi 3 setup should produce similar g's, but currently doesn't. As can be seen, it is not just about a ...
3 votes
0 answers
673 views

Moonlight (Wifi): Dropped Frames, Multiple Errors, Crash

Casting any media from a PC to the RPi, other than on a Ethernet connection, results in a large number of errors, and an eventual crash. Streams are very responsive, and smooth at 720p at 30fps, but ...
3 votes
0 answers
1k views

On-screen keyboard with app integration

I'm aware of matchbox-keyboard, but I'm looking for a more Android or iOS kind of keyboard solution. When selecting a text input, of type alpha or numeric, I would like the appropriate keyboard, text ...
3 votes
1 answer
2k views

Raspberry Pi 3 & Arduino: [bluetooth.btcommon.BluetoothError: (112, 'Host is down')]

I am trying to send informations from Raspberry Pi 3 to Arduino Uno with bluetooth. I managed to connect the Arduino's bluetooth module with the Raspberry Pi. But I have this error when I execute my ...
3 votes
0 answers
11k 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 ...
3 votes
0 answers
725 views

Disable Screensaver of XServer on Raspbian Jessie Lite

I setup a Raspberry Pi 2 with Raspbian Jessie Lite in read only mode. To run a Qt application I installed the packages "xserver-xorg" and "xinit". I am starting the application automatically after ...

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