Raspberry Pi Stack Exchange
Raspberry Pi Stack Exchange

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1500 questions
11
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2 answers

How to debug no Internet connection?

I am using a Raspberry Pi that is connected to the router directly with an ethernet cable but the device will not connect to the internet. All the network lights light up but I cannot access the internet and cURL, wget, and ping commands are all…
anthonybell
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PulseAudio / MPD/ HTTP Streaming Installation Guide

After struggling for some time with installing PulseAudio, and getting MPC/MPD working with HTTP streaming on Raspian I have put together some notes (mainly for my benefit), but would appreciate any feedback from members of the community as to if I…
user199991
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1 answer

Upstart in Debian/Raspbian

I've switched from sysvinit to upstart but get the below message whenever I attempt to start a service: Unable to connect to Upstart: Failed to connect to socket /com/ubuntu/upstart: Connection refused Upstart does execute all the old sysvinit…
peterstrapp
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2 answers

Raspberry Pi won't Boot Just shows Black Screen

I have had my raspberry pi running as a media centre using openelec. It has run fine for a few weeks and suddenly it has just stopped working and will not function. The PWR light shows RED, FDX and LNK show green and the 10M shows orange but the OK…
h00j
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11
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4 answers

How to make a change to the routing table persist?

I am running raspbian and I can access anything on my lan through ethO but cannot ping an internet address. route -n says the following: Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use…
Don
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11
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3 answers

Raspbian Buster Lite: couldn't communicate with wpa_supplicant

Just flashed a card with Raspbian Buster Lite on a Raspberry Pi 2, and ssh'd into it using an ethernet cable. raspi-config/wpa_cli can't communicate with wpa_supplicant (there's no /var/run/wpa_supplicant control interface). At the end of the post…
soundblaster
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11
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1 answer

PHP 7.4 on raspbian

I'm trying for about 4 hours to install PHP 7.4 on my Raspberry Pi Zero W. I tried different tutorials, but I endup crashing my raspbian completly or just the installed php. With crashing I mean, I get the following message: Illegal instruction. I…
Mr.Tr33
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11
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2 answers

What are the max current rating for 3.3v and 5v rail of the Rpi 4B

Does anybody know the max current rating of the 3.3v and 5 v rail of the new raspberry pi 4? i could not seem to find anybody benchmark this, i have read from someone that the new RPI 4 has a new switching voltage regulator and was wondering is…
Jack
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11
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5 answers

Can Rpi4B power external / portable USB HDD / SSD?

I was not able to power an external HD directly from a Raspberry pi 3 (the HD was constantly complaining about a lack of power). Would a Raspberry Pi 4 be able to power a portable hard drive (using the standard charger)?
raspberry
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11
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3 answers

Why is `wget` hanging?

I have raspbmc (Debian) installed on my Raspberry Pi and it seems to not be able to download anything? wget seems to stall yet it can ping! The same happens for apt-get Resolving google.com... 173.194.41.160, 173.194.41.165, 173.194.41.163,…
Pez Cuckow
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11
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2 answers

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…
Pygmalion
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10
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1 answer

Pi 4 I/O interface options... and where to find them

The BCM2711's hardware documentation lists multiple I/O interface options. Among others these are: up to 6 × I2C, up to 6 × UART (muxed with I2C), up to 6 × SPI (only five exposed on Raspberry Pi 4B) The Pi 4 however shares the pinout of its…
Ghanima
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10
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0 answers

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 I cannot get the SPI frequency to go above 500…
Chris Loonam
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10
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9 answers

PWM input in Raspberry Pi

Is there a way to read a PWM signal from the pins on Raspberry Pi? I tried googling it, but I only found PWM output, and not input.
Caio Keto
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10
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4 answers

raspi-config network option not working

I am trying to turn on the network option in raspi-config, but when I do, I get this error: could not communicate with wpa_supplicant Then I hit enter to continue and I get this message There was an error running option N2 Wi-Fi I am running the…
Mooshroom14
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