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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548 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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8k 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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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
2k 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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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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381 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
354 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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142 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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431 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
1k 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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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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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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212 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
807 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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22 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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1k views

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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140 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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187 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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133 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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380 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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1answer
585 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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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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296 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
5k 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
693 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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608 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
1k 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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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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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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138 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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1k 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
3k 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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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
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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
867 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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375 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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429 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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8k 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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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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1answer
767 views

Omxplayer video flashes to black screen when connected to projector

I'm using Tim Schwartz's Raspberry Pi Video Looper to turn my Pi 3 Model B into a simple video player. It works flawlessly connected to my Samsung HDTV over HDMI as well as my older Apple Cinema ...
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Is it possible to power a Raspberry Pi (Zero/Compute Module) over an HDMI/MHL socket of a TV?

Today I stumbled upon the WDLabs Media Stick for the Raspberry Pi Compute Module at the ModMyPi Online Store and was immediately reminded of the Intel Compute Sticks or the ASUS Stick PCs. But the ...
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69 views

Access to another X session from another

I have RPi3 connected to the TV via HDMI. I'd like to have another connection (via VNC for example) and start presentation which will be displayed on that TV connected via HDMI. Is it possible?
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Audio over HDMI not working on Pi 3

I have recently acquired a Raspberry Pi 3 Model B. The audio doesn't work and having looked at other people's comments online I am not the only one having this problem. I have tried the things that ...
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591 views

HDMI passthrough with Raspbian

I have my RPI3 connected to a pair of Edifier S1000 speakers through a device that extracts the audio from the HDMI signal and sends it to the speakers through an optical cable. The sound is clearly ...
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2answers
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What does HDMI as composite mean?

Im reading into cpu usage and read this in some documentation "Use HDMI as composite requires more CPU usage." Does that mean that using the audio over the HDMI is going to use the CPU less or more?
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Raspbian Put monitor to sleep at night and wake in morning

I have my Raspbian running Chromium in kiosk mode and works nicely. However, I would like it to turn the HDMI display off at 10pm and wake it up at 7am. I could not find such a setting in Raspbian.
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Problem when plugging an HDMI extractor to the Pi

I use my Raspberry Pi with Kodi on it (probably one of the last version with both a Pi 2 and 3). A few months ago, I bought and HDMI extractor so that I could use my Home Cinema using the Passthrough ...