Questions tagged [hdmi]

HDMI stands for High Definition Multimedia Interface. Along with the Composite RCA, HDMI is one of the devices' two video outputs. It provides high quality digital video.

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341 views

Enable audio over HDMI on Raspbian Jessie with AV Receiver

I am attempting to connect a Raspberry Pi Zero W with HDMI to an AV Receiver (Pioneer VSX-820). My interest is exclusively in playing sound over the speakers connected to the receiver, although there ...
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907 views

HDMI-Ethernet extender

I'm trying to redirect HDMI output of my Raspberry over ethernet to place a monitor 25m away from raspberry. I'm using a "Techly" HDMI extender like this. My connection scheme is similar to this: ...
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490 views

RPi3 on Sony Bravia HDMI Produces Flickering Lines

After working for a while, and with various distributions and SDs, my Raspberry Pi 3 no longer properly works with my Sony Bravia. With the HDMI inserted it now displays flickering, changing lines. It ...
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712 views

Show multiple HD streams at once on raspberry pi?

We have a situation where we have a large number of incoming HD video streams which we would like to monitor in a way similar to this wall of monitors each showing 16 channels. This can probably be ...
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1answer
85 views

Turn on display after reboot

I have a monitor connect to a Raspberry Pi via HDMI. When I turn on the Raspberry Pi with the monitor off, and then turn the monitor on, I don't get any output. The HDMI only comes on if the monitor ...
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2answers
9k views

How do I force the correct screen resolution in /boot/config.txt?

I've recently set up a Retropie which I have plugged into my TV. If I have the right input selected on the TV before powering on the Pi, then the image looks crisp and wonderful. However if I turn on ...
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415 views

Block Raspberry Pi from quitting fbi fullscreen (HDMI) to command line

I'm developing a parking control system in Python 3 which runs in headless mode at the Raspberry Pi startup and uses one RFID reader, one Barcode reader and many other devices but they really don't ...
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2answers
517 views

Is there a wireless alternative to using the HDMI cable to connect a monitor

Is there any way to connect a Raspberry Pi 3 wirelessly to a monitor? I am building a (caterpillar)tracked robot and want to develop code and test stuff out without needing the HDMI cable to be ...
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1answer
648 views

No display from Raspberry Pi when HDMI to VGA adapter used with HDMI extension cable

Basically my setup is this: RPi HDMI -> 50cm HDMI extension lead -> StarTech HDMI-VGA converter* -> VGA cable to monitor. https://www.startech.com/uk/AV/Converters/Video/HDMI-to-VGA-Adapter-...
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1answer
12k views

How can I stream video from an HDMI device over a local network?

The goal: To stream video and audio output from an HDMI device to a computer over a local network in real time. For example, streaming the HDMI output from an Xbox 360 to a computer on the same ...
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116 views

Resolution Issue

When I connect my raspberry pi to a monitor through an HDMI cable, the resolution gets lower at the boot of the desktop UI, but when I click on start menu it turns to 1920×1080. Sometimes it randomly ...
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Direct sound playback via HDMI with sound input from Bluetooth Mic

I've connected my Raspberry Pi to a TV via HDMI, by default the sound output is through TV speakers via HDMI. I installed pulseaudio and successfully connected a Bluetooth headset [samsung HM1100] to ...
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2answers
3k views

Writing directly to the HDMI display

I would like to boot a Rasperry Pi in headless mode and then use a notebook-sized monochrome LCD display attached to the HDMI port as a DIRECT output device, bypassing the OS. In particular, I would ...
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1answer
1k views

Switch Between Displays/Raspbian - RetroPie Dual Boot

I am thinking about getting a Raspberry Pi 3b. I've never owned or operated one. I am pretty good with computers but I've never used Linux. If I do get one, I want it to run a dual boot with Raspbian ...
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392 views

Sound headaches on Pi 2B

The problem I have a Pi 2B running Ubuntu MATE connected to a small TV by HDMI. For some reason I get no sound for practically all of the time, neither on HDMI nor the headphone jack, even after ...
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1answer
442 views

vcgencmd display not turning back on

I am having an issue with vcgencmd display_power 1. This is a code chunk that Iḿ using to test the logic. #include <wiringPi.h> #include <stdio.h> #include <stdlib.h> #include <...
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1answer
192 views

Output to unorthodox HDMI screen

I have a little bit of an issue displaying the Raspberry Pi on a 1280x272 screen. The monitor is about 9" and has a HDMI input. I have tried connecting it before startup, and it doesn't seem to work....
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463 views

Using LCD 400x240 with HDMI- LVDS Adapter

I'd like to get RPi working with my display on the car. The display's specs are here: https://file.io/w86H2M Internally it is 6-bit parallel LCD --> 18-bit resolution. The display housing has ...
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1answer
2k views

Raspberry pi 3 not booting, screen is blank

I recently purchased a raspberry Pi 3 and bought a 8 GB micro SD card with it I wrote the image file of Raspbian onto the micro-sd card with win32diskimager which took 2 hours and then attached my ...
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1answer
2k views

How can you set the HDMI resolution of the Raspberry Pi Zero W to 320x240?

Bought one of those cheapo HDMI LED projectors which has HDMI input but only a native resolution of 320x240. Internally it down-samples. I'm wondering if the Pi Zero W can be configured to output at ...
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525 views

How to turn display on and off on Windows IoT?

I've got a Windows IoT UWP app wherein a motion detector will turn the display on if someone is in proximity, and then turn off after a period of no motion detected. The LCD in question is this one. ...
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1answer
261 views

VGA Mode on RaspPi

Reading the config.txt docs, I found this: These values are valid if hdmi_group=1 (CEA) hdmi_mode=1 VGA Does this make the output on my HDMI port be VGA? I have a cable that with a VGA and ...
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1answer
1k views

Trying to force OpenELEC to keep HDMI on, but fs is readonly

My question is like this one: How do I force the Raspberry Pi to turn on HDMI? , except for OpenELEC and not Raspbmc. Basically I have a homemade media center Raspberry PI 3 with OpenELEC/KODI ...
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1answer
24 views

Run app / service when screen turns on?

I was wondering if it would be possible to detect when an HDMI screen is turned on, and then launch, say, Kodi? Lets say I want to use the Pi as a server and don't need Kodi to run its UI game loop ...
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How do I connect a Raspberry Pi to my computer using HDMI?

I have inserted my SD card and all that stuff but when I insert the HDMI into the computer it does not seem to load up, how can I make it loadup with my computer? Do I need Ethernet or something like ...
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165 views

monitor no hdmi signal

I've installed ubuntu classic server 16.04 (Rasberry Pi 3 edition) found here https://ubuntu-pi-flavour-maker.org/download/ on Rasbperry Pi 3 b and everything is working as expected when I ssh into it....
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1answer
275 views

Using a Raspberry as on-boot auto media player from USB over HDMI to TV, changing files from network

There's a TV where I work, and we show products videos to the clients, so I was wondering if we could connect a Raspberry to the TV, and change the files on the USB Drive from the network, over WIFI, ...
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2k views

Problem with python cec in raspbian stretch

I have rpi 1 model b with stretch installed. I want to use python cec library. First I tried to install it. sudo apt install python-libcec But fails to import cec :: Python 2.7.13 (default, Jan 19 ...
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141 views

HDMI problem with Raspberry Pi 3

I bought a Raspberry Pi 3 model B starter kit with an hdmi cable inside. I wanted to create a smart tv using my LG full hd (I don't remember the model). The problem is that when I use OSMC or ...
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1answer
446 views

Raspberry Pi as HDMI to USB converter for HD Camcorder

I know this is a long shot, but is it possible to use the HDMI port of the Raspberry Pi as an input from an HD camcorder, and use a USB port as an output for another device (like a laptop) to use as a ...
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676 views

Help with 3.5" display

i have a 3.5" display that works perfectly but i don't know how to connect it to GPIO. I'm searching on internet, but i am finding nothing. how can i make it work? I need to force video output to GPIO....
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Trying to use a VGA monitor with my Raspberry PI

I have Android things 0.5.1 Dev Preview installed in my Raspberry Pi 3. In my office with an HDMI monitor, it works just fine. But when I use an HDMI to VGA converter I do see the Rainbow screen. But ...
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67 views

No Desktop or Wrong Desktop depending on HDMI Connection

When using my Pi on a regular TV or computer monitor via HDMI, everything performs as expected. When I connected it to a Cisco Spark board via HDMI, I anticipated no change. However after the initial ...
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2answers
358 views

Send to monitor with mhl-hdmi port

Can I connect a HDMI cable from raspberry 2 to a monitor with MHL-HDMI port?
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1answer
6k views

Testing CEC on Raspbian

Just installed Raspbian on a 3 B connected to a TV that supposedly supports CEC (LG 47LD450), but struggling to find any info on how to test CEC on Raspbian. I want to confirm that it works, or ...
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1answer
908 views

Raspberry pi USB camera feed (LOCAL ONLY - no network)

I've come across many tutorials that allow for the network streaming of a USB camera from a pi. I simply want to view a live stream FROM the raspberry pi ON the raspberry pi. Setup: Wired usb ...
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635 views

Android Things (0.5.1) fails to initialize GPU on Raspberry Pi 3 Model B?

I have just set-up a Raspberry Pi 3 with Android Things using the latest developer preview (5.1). It boots and I can run some minimum samples, and the output can be seen normally in a HDMI screen. So, ...
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1answer
2k views

Raspberry PI 2 HDMI to coaxial?

I have a Raspberry pi 2 that only has HDMI display port. I need to feed the RPi display to 4 TV's in the office (one RPi drive 4 TV's) I have coaxial cables connected to the TV's and they all ...
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61 views

My screen displays weird things

I have a problem with my raspberry pi zero. My HDMI screen shows weird things (see below). Other screens work fine it is only this one. I can move my mouse fine. Can I solve this issue or do I have to ...
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1answer
3k views

Unless TV/HDMI switch set to RPie, resolution is too big

So, I have a RetroPie running on Pi-3B, with the RemotePie HAT controlling on/off. When I turn it on, unless my TV (1080p HD) and HDMI switch are set to the inputs to display the Pie, the display is ...
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0answers
150 views

HDMI display output rendered useless on 2 different Raspberry Pi 2

Is there a way to corrupt the firmware in the Raspberry Pi ARM? I cannot understand what has happened to my 2 RPIs and I was never expecting software or the operating system being able to disable the ...
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1answer
2k views

No audio on Raspberry Pi 3 w/Kali

I know there's a similar question, however it hasn't yielded an answer because the OP never answered the questions of a member who replied. Specifically, I'm trying to get audio output through HDMI ...
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1answer
4k views

Configure ALSA Sound card

I have 2 playback device where one is HDMI and the other is HAT sound card. The requirement is to play audio from card 0 or 1 without rebooting the system. aplay -l **** List of PLAYBACK Hardware ...
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2answers
56 views

Monitor goes black when unplugging the ethernet cable

My Raspberry Pi B+ is working well except: the HDMI only seems to work if the ethernet cable is plugged in. If I remove the ethernet cable the monitor goes black. I plug the cable back in - monitor ...
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1answer
21 views

Power and Visual Advice Neeed [closed]

I am VERY new to the aspect of using a Raspberry Pi for projects and I want to make my first project something to remember. So I am making an emulator with a Raspberry Pi 3 Model B and have yet to ...
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1answer
1k views

Output HDMI through USB to PC

Before I explain, I doubt this is possible I want to be able to output the video from a pi zero over USB and have the PC its plugged into send keyboard/mouse inputs. Like USB ssh but actual video out,...
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1answer
408 views

PWM via GPIO to trigger a MAPIR Camera

I am currently trying to trigger a MAPIR NDVI Camera with a PWM Signal. The camera is connected via this HDMI trigger cable. The white wire is connected to GPIO PIN 17, the black wire is connected to ...
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533 views

Raspberry Pi Zero W Mini-HDMI to VGA connection problem

The SD card I ordered a week ago showed up at my house today so I threw Raspbian on it with Win32DiskManager and attempted to boot up, but I was greeted without any kind of video signal. After doing a ...
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2answers
10k views

Raspberry Pi no signal to hdmi

This is the first time I've tried to use a raspberry pi, I bought a CannaKit that came preloaded with NOOBS. When I attempt to boot with the HDMI my screen says no signal, the HDMI output is correct, ...
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1answer
2k views

Reduce power consumption script

I have read on this blog that you can reduce power consumption: https://www.jeffgeerling.com/blogs/jeff-geerling/raspberry-pi-zero-conserve-energy By disabling the HDMI port. He says that I should ...

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