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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How to play on RPi4 two Full HD 1080p videos with audio outputting to two HDMIs separately?

Let's consider two mp4 containers media (h264/1080p video + aac audio) mountains.mp4 and forest.mp4. When omxplayer started for first video: $ omxplayer --no-keys --loop --display 2 ./mountains.mp4 ...
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Connecting my Raspberry Pi 0 W

I was wondering which type of HDMI I should use to connect my Raspberry pi to my monitor, it says HDMI on the side but I dont appear to have any cables of the type, I would like to buy the cable but I ...
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RPi's screen starts doing strange things when running a software

I would like to know if someone could help me with this, when I starts a software like Blender or Sonic Pi my screen begins to freeze and by continuing refreshing the screen I finish with a white ...
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Raspberry pi 2B is stuck on rainbow screen and the 7" official screen is white

My Raspberry pi 2B works perfectly fine when it is connected to my TV via HDMI. But when I connect it to the touchscreen at the same time, the touchscreen is just a white screen and on the HDMI, it is ...
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My scren blinks every 10 seconds (RPI 4)

I have a RPI 4B connected to a SAMSUNG SyncMaster 743NX with a HDMI to VGA adaptor and then a VGA to VGA cable (also the mini HDMI to HDMI adaptor for RPI 4). My screen goes black every 10 seconds and ...
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10k views

Raspberry Pi Monitor goes black periodically

I have a Raspberry Pi 2 connected to a Dell 1707FP monitor via an HDMI-to-VGA cable. Every minute or so , the screen will randomly turn black for a second and then return. This occurrence happens ...
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478 views

Change default (as in nothing plugged in) screen resolution

I will probably be using my Raspberry Pi (running Ubuntu Mate) for remote desktop, but not all of the time. Sometimes I will want to plug it into a monitor. When it's not plugged into a monitor, I'd ...
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1k views

HDMI-CEC: switch the device to the port where Raspberry is connected

I am using my Raspberry only for a Spotify connect client (Raspotify), the device connects to an AV Receiver which has a number of HDMI ports. After 2 days of trial and error I managed to figure out ...
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552 views

Monitor Displaying “No Signal” with RetroPie at Powerup

I'm in the process of building a game console using RetroPie and a Raspberry Pi 3. I'm connecting the Pi to a monitor via HDMI, and I'm powering both using a power strip with an on/off switch, to ...
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148 views

Default audio output to HDMI

I have an RPi4 installed with ubuntu20.10. I connect it to a display(TV) using an HDMI cable. The problem is the output is by default set to a 3.5mm jack. I override that by running the raspi-config ...
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How to set HDMI Port 1 to be used by default on Pi4?

During some experiments it looks like my HDMI port 0 broke down. I still can SSH to it. tvservice -M <display on port 0> Does not show any activity on port 0 when I plug the HDMI cable in and ...
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My Raspi4 hdmi won’t sound

What's happening? My raspberry pi4 won’t sound HDMI. (AV jack is working fine) Raspi information environment OS - Raspberry Pi OS with desktop 2020-12(Flash with December 2nd 2020 image and run apt ...
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TV Hat disables HDMI on Raspberry Pi 4

I got a brand new Raspberry Pi 4 and a TV uHat. When the HAT is not attached to the Pi, I get output from HDMI0. When the HAT IS attached, however, I get no output from HDMI0. My TV just says "...
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HDMI no signal when i run game

Hi I have a raspberry 3 system with recallbox software. the systems works and initiates. when i run a game the HDMI says no signal. this happened when i changed tv. i tried 3 different tvs and 4 ...
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No video output on HDMI raspberry pi 4 b

There is no video output when booting raspberry pi 4 b. Red light is constantly on and the green light flashes when turned on but soon turns off and my monitor says that there is no signal. Can anyone ...
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Raspberry Pi 4, audio on hdmi 0, video on hdmi 1

Presently I am trying to setup a Raspberry Pi 4 to send its 7.1 uncompressed audio to an older home theater receiver for decoding via the HDMI 0 output and a 4k video output from the HDMI 1 output to ...
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Raspberry does not respect Framebuffer resolution after latest update (dez 2020) and changes mid-boot

I have the following on my /boot/config.txt: framebuffer_width=1280 framebuffer_height=720 Which worked for many years on my dozens Raspberry Pis until I updated Raspbian 10.6 this week. Now, it ...
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113 views

No HDMI audio when logged in as a new user

Sound over HDMI works fine when I login as the default user pi. I created a new user named for example user1 If I login as this user, no sound plays through hdmi. I then added this user to most groups ...
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35 views

Raspberry PI 0 W

I have embedded Raspbian OS in SD card and I have put it in the Raspberry PI 0 W using Noobs method, But if i connect it to lap or some HDMI display via HDMI cable, I am not getting the display ...
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31 views

Turn HDMI display off while keeping audio on

I am currently wrestling with a configuration headache involving my RPi4, Kodi and an audio receiver (and a TV that doesn't support CEC standby)… Even after installing an HDMI splitter to separate ...
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756 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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Headphone deactivates when RasPi is started without screen (HDMI)

To my Rasbian setup I have a set of speakers connected via the headphone jack and it works just fine when I start the RasPi (3b+) with a connected HDMI screen, also when accessing it via a web portal (...
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129 views

Why can't you connect Raspberry Pi to a Laptop via HDMI

I have a Raspberry Pi 3b+. When I hook it up to my TV, which has HDMI input, it automatically boots up the pi and show the raspbian window. Although, when I connect it to my Laptop via HDMI there is ...
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enable_tvout (Pi 4B only) [duplicate]

I want to connect a Raspberry 4 Model B to a Light projector (wintech PRO6500). And I cannot do it properly. I am using the following in config.txt. # uncomment to force a specific HDMI mode (force ...
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55 views

HDMI streaming on Raspberry Pi 4B with TC358743

I'm looking to stream an HDMI signal wirelessly between two Pis, using a TC358743 on the camera port of the input Pi and playing video from the HDMI port of the output Pi. I'm quite new to Raspberry ...
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59 views

Control IR Port With GPIO

I'm working on a project that needs the ability to control an HDMI switch programmatically. There are going to be a lot of these boxes so price of the components used is very important. I've ...
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Alternative ways of controlling TV standby when libCEC is not working

I am running into the problem encountered by a few people here: my LG TVs appear to use an incompatible CEC standard that does not respond to on 0 or standby 0… Like the previous poster, I have ...
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1answer
84 views

Pi4B/Raspbian Buster: Dual screens no longer working after enabling touch

I have a shiny new Pi4B with a 4" touchscreen case (one of those XPT2046 ones). I also bought a portable 13" screen. The idea is to have a super-compact mini-computer on the go, and to be able to use ...
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2answers
8k views

Mirror display on a TV via wireless HDMI

I was wondering if anyone knew of a way to mirror my raspberry display to a TV using wireless HDMI. I searched and searched and I've found multitudes of blogs and questions about mirroring a phone ...
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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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4answers
11k views

When using display_rotate=1 half the screen is black

I've setup my Raspberry Pi as a kiosk, on a portrait-mounted HDMI TV. After setting display_rotate=1 and the GPU split to 128MB in /boot/config.txt the screen is now the correct orientation. However ...
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no sound via hdmi after update [duplicate]

The sound via hdmi stopped working after this update: Start-Date: 2020-12-04 20:43:36 Commandline: apt upgrade Requested-By: pi (1000) Install: hplip-data:armhf (3.18.12+dfsg0-2, automatic), ...
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2answers
215 views

Raspberry Pi 4: cannot use 1920×1080 resolution on a Full HD monitor (Asus PA238)

I recently bought a Raspberry Pi 4 (4GB). I installed the latest version of Raspberry Pi OS (2020-08-20-raspios-buster-armhf-full.zip) on it and plugged it on my 1080p TV, and everything worked as ...
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1answer
2k views

raspberry pi with 4k screen @1080p resulotion

I'd like to use 4k screen with RPi. I know that RPi can't handle 4k resolution so that is why I'd like to set resolution to 1080p. Screen will be playing videos/images (both prepared at 1080p) and my ...
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1answer
35 views

input interrupt error (UV projector)

I am trying to control a UV light projector with a raspberry. The raspberry recognizes the projector, as in the dmesg it says the product, the manufacturer and the serial number... but then this ...
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4answers
4k views

Remote Connection to Pi to same Display as HDMI Port

Is there a way I can remotley connect to the Raspberry Pi and get the same Screen as it is shown on the HDMI Connection? We need the Pi for a Screen in the entrance Hall of our Building, and i can ...
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9 views

Raspbian looses display only displaying cursor when launching emulationstation's games

Question about RetroPI and EmulationStation, or maybe Rasprbian OS? Launching game through NDS emulator 2 out of 3 HDMI devices I use will show black screen with mouse cursor visible right after. My ...
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27 views

Broadcast a message from a background job so that it appears on all sessions including the login screen

I'm running a python program as a background job, started by systemd on boot. From this background job, I would like to print messages to the login screen (the screen that's visible on the HDMI output ...
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1answer
244 views

Mirroring output to element 14 7" touchscreen and hdmi

I would like to have the touchscreen and hdmi displays mirrored but I can't find any info or setting to mirror. Running Raspbian Buster and using an element 14 7" touchscreen. Edit: I got mirroring ...
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1answer
2k views

Raspberry Pi 4 not turning off HDMI monitor on idle

NOTE: This issue has since been fixed, as far as I am aware (it works now). If you are seeing something else happen, this may not be it. That does, of course, assume that you haven't edited the config ...
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53 views

LCD VGA Display goes blank on use of usb mouse on Pi 3

I have an old VGA monitor (Xerox XM7-19w which has its prime resolution as 1440x900 (i.e. WXGA) at 60Hz. I've connected my recently purchased Pi 3 (and recently purchased sdcard with Rasbian on it) ...
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2answers
18k views

Is it possible to connect to a display port?

I bought a HDMI to DP cable to connect my Raspberry Pi 2 to a screen with Display Port. Unfortunately I get no output on the screen. Is it possible to connect the Raspberry Pi 2 to a screen with ...
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2answers
147 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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20 views

Pi keeps changing source

I have a problem with my Pi. Every time I turn on the TV it automatically changes the source to my Pi. I tried following this thread : stopping RaspPi / raspbmc from auto changing source on tv ...
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1answer
25 views

cec controlling other cec enabled device (not TV) - controlling Fire TV from pi

I have a pi connected to the TV and can successfully power on, power off, and change sources on tv with: echo "on 0" | cec-client -s #turn off echo "standby 0" | cec-client -s #...
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1answer
161 views

No HDMI after retropie restart, every time, multiple micro sd cards?

So I install the latest image of retropie, and boot it up on my rpi3. Plug it into my hdmi arcade cab, connect to wifi, add games from pc via wifi, force audio to 3.5 or I'd have no sound, restart, ...
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2answers
65 views

How to enable HDMI on Rasberry Pi 4

This topic may be misleading. Let me clarify. I need to enable HDMI on my new raspberry Pi 4 (I am a new user to pi). This is accomplished by changing one line in /boot/config.txt. This is posted in ...
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Raspberry Pi3B is new. I am using it as a companion computer for my ROV together with my FC

on my second test while testing the pi with a usb camera, HDMI connected, ethernet cable linked to my laptop and micro USB hooked up for power which is similar to my other ROV setup. On this boot up i ...
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1answer
230 views

Raspberry Pi 400 video issues with older DVI monitors

I have a strange problem trying to get a Raspberry Pi 400 to display on two older monitors, an HP LP2065 and a Samsung SyncMaster 214t. Both are mid-2000s 1600x1200 monitors with DVI inputs. With both,...
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93 views

Second Acer monitor X183H native 1366 x 768 HDMI-to-VGA adapters “Input Not Supported” (*First AcerG195W works great)

#Raspberry Pi w/ latest raspbian (RaspberryOS) (which I have connected as a desktop computer) https://www.raspberrypi.org/products/raspberry-pi-4-model-b/specifications/?resellerType=home #Connection ...

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