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1500 questions
12
votes
4 answers

Uninstall Docker

I have installed docker as described here raspberrypi.org/blog/docker-comes-to-raspberry-pi with curl -sSL https://get.docker.com | sh. How do I uninstall it?
förschter
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12
votes
5 answers

How do I change the hostname without rebooting?

Is it possible to change the hostname of my Raspberry Pi permanently, but also have the change take effect without rebooting?
Linus Unnebäck
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12
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2 answers

What is the "Hotkey Enable" button supposed to be?

I have installed RetroPie on a new Raspberry Pi and went to set up a controller. After pressing all the buttons as requested, I was prompted to select something for "Hotkey Enable". What is this supposed to represent? I'm all out of buttons on my…
Thunderforge
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12
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2 answers

Recover files from broken sd card (no boot)

Is there any chance to recover some files that are on a SD card which doesn't boot anymore? Seems the last power-cut affected some files on the card and the Raspberry Pi is not able to boot anymore.
el.severo
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12
votes
1 answer

Strange problem on startup - cannot open access to console

Rpi 3 Model B, 16gb SD, all configured well and working fine until yesterday sometime, when rebooting, I now have to press "enter" to continue due to: "Cannot open access to console, the root account is locked." This is news to me, and pressing…
user74656
12
votes
6 answers

How to set headless VNC resolution using real VNC?

I am using Raspian Stretch and I can not set the resolution of my desktop when using VNC headless. I am using Real VNC because it comes by default (I have it configured there). I have no monitors plugged in. I have tried all the suggestions…
Startec
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12
votes
5 answers

Turning off LEDs on Raspberry Pi 3

I need to disable all LEDs on my Raspberry Pi 3s otherwise they interfere with the operation of my camera setup. I use Raspbian Jessie. I can successfully use the following code: echo 0 >/sys/class/leds/led0/brightness echo 0…
Alessio Sangalli
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12
votes
2 answers

Get PI's temperature using C

I know you can get the temperature using the tool vcgencmd but I was wondering if there is any API I can use in C to get the temperature programatically without reading the stdout of vcgencmd ?
opc0de
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12
votes
1 answer

What is the purpose of FOUR RaspberryPI icons on boot?

I get four RaspberryPi icons in upper left corner of the monitor screen at boot time. Does it have a purpose? If so , why four?
Jan Hus
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12
votes
7 answers

How to autostart Kodi at boot?

I've got Kodi 17 Krypton and would like to start the app automatically when the Raspberry Pi boots. How can I do this?
Mario Serda
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12
votes
4 answers

How to get the Raspberry Pi's IP address for SSH

I am using Mac OSx to access my Pi via SSH. To access it, I know that I need the Pi's IP address. So, I decided to use a few Python commands which have always succeeded in giving me the local IP. import socket host_name =…
xxmbabanexx
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12
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1 answer

Does an MPEG-2 license improve Flash video playback performance?

I'm running Raspbian. I installed Gnash to enable Flash support (i.e. YouTube playback). The videos come up, but they're too slow to be watchable. Does the MPEG-2 licence key improve YouTube playback using Gnash?
dangowans
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12
votes
2 answers

Raspberry Pi presence detection using Wi-Fi

How can I have my Raspberry Pi continually scan for a MAC address on my network then perform a task when it detects a specific MAC address? I use my Pi to run various home automation tasks. I'd like it to perform a task when it senses that my phone…
gsears
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12
votes
2 answers

OpenCL / GPGPU programming coming soon?

Last June the answer was a qualified no: Can I use the GPU for calculations? However, the Videocore driver code was open sourced towards the end of 2012: http://www.raspberrypi.org/archives/2221 - does that mean we're now likely to see it happen? If…
David Carboni
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12
votes
2 answers

Unable to run "sdl-config"

I'm new to Pi and Linux, and I'm using the Pi Zero W with a fresh version of Raspbian installed. I'm trying to get PyGame installed on the Pi so that I can work on a project. When I run the command pi@raspberrypi:~/pygame $ python setup.py This is…
meabster
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