Raspberry Pi Stack Exchange
Raspberry Pi Stack Exchange

Questions tagged [output]

Output refers to any PHYSICAL output from the Raspberry Pi. There are four main outputs: GPIO, HDMI, RCA and Audio.

126 questions
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Why is my audio (sound) output not working?

I can't get the audio running. I don't hear anything and can not play anything. Is there a solution to enable audio?
Itay Grudev
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61
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7 answers

Can a simple cable convert HDMI output to VGA?

One may buy a simple HDMI-to-VGA cable, or an HDMI-to-DVI cable. Example: on Amazon. However, my vague knowledge is that these cables only work for video cards that have special support for this function. Does the Raspberry Pi support such…
AlanSE
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3 answers

How can I use the GPIO pins as digital outputs?

I've read that the Raspberry Pi has a number of input and output pins. How can I switch them? (from Python?) What voltage logic? Do I need pull-up or pull-down resistors? Do I need to switch the pins from inputs to outputs? Which pins are…
Alex L
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4 answers

Use cellphone screen as monitor

This question is different from (Connect Pi to an old laptop screen) because I will use a cellphone and not a laptop. Would the Raspberry Pi support a LCD screen that is taken out of a cellphone?
Devyn Collier Johnson
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16
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3 answers

How do I attach two monitors in a dual head configuration?

I'm considering buying a Raspberry Pi or compatible solution. My problem is that I could not find how to achieve a dual head configuration. I would like to attach two 1920x1200 displays by digital connection (HDMI, DVI, DisplayPort, etc.). Any ideas…
Grzegorz Wierzowiecki
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14
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1 answer

HDMI output display shows zits/interference

I received my Raspberry Pi today and tried the vanilla Debian squeeze distro and the OpenElec XBMC distro. What I noticed is the display was showing interference/zits similar to this: I checked my cables, tried a higher power output USB socket and…
EdChum
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2 answers

What are the pros and cons of connecting to a VGA monitor?

I can either get a passive RCA (Composite video) to VGA, an active RCA to VGA or an active HDMI to VGA, but which? What I want to know is: How does the quality compare between them (as in not freezing, fast connection ect)? How do their costs…
ACarter
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9
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11 answers

No video on HDMI?

I just got my Raspberry Pi in the mail, and went to hook it up to my TV with an HDMI cable. I plugged in the cable (known to work with my cable box), a keyboard, and then power. A light comes on the Raspberry Pi, but no picture. Is there something…
Canadian Luke
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8
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5 answers

Creating an HDMI Pass-Through Connection

I would be very interested to know if anyone on here might be able to provide some insights into the feasibility and/or proper approach to add a HDMI input to the Raspberry Pi in an effort to allow the raspberry pi to consume content from this port.…
NetConstructor.com
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8
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1 answer

Text To Speech Select Output Device

I saw many tts engines, like festival, espeak, etc.. I wanted to know if any of these could select the output device, like an USB sound device. If it's possible, what the command line to make it happens?
Caio Keto
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8
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2 answers

How can I move the terminal?

For some reason my TV is cutting off about 4 or 5 characters from the screen of my Raspberry Pi. I am using Raspbian, but it occurred with Arch as well. Could it be that I have an HDMI to Component converter? Is there a way to adjust the terminal…
VinylScratch
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3 answers

The Composite Video on my Raspberry Pi isn't working

I run the commands /opt/vc/bin/tvservice -o
/opt/vc/bin/tvservice -c "PAL 4:3" and the screen changes from the default "no signal" screen to a black screen. This shows me that the Raspberry Pi is sending a signal but it is just a black screen.…
Kyriazis
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6
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3 answers

GPIO status after python code is closed

I intend to write a python script to change the status of GPIO pins. The code will receive arguments through sys.argv, change the state of some GPIO pins, and close afterward. My question is: Do the state of GPIO pins (input/output) and their values…
Ali F
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5
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2 answers

Python Synth with Raspberry

I'm trying to create a synth using python with raspberry pi. I've written the code for manipulate the gpio input (i've modified the electronic of an old pianola and connected it to raspberry with the gpio) but I don't know how to create a sound. I…
MickFenneck
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5
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1 answer

REALLY force Raspberry Pi to send audio via HDMI

I wanted to use my Raspberry Pi with a very old video projector which was not capable of processing audio signals. So I bought an HDMI-audio-extractor (Ligawo 6518725 HDMI Extractor), as the PWM analog audio output had poor quality. This set-up did…
user12537
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