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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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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1answer
235 views

Pi Zero not booting without USB

It seems as though my pi zero does not boot or send image through HDMI until I attach the USB hub. Why is this and can this be fixed?
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1answer
328 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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1answer
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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0answers
39 views

yocto build (zeus) fails to present a login screen through hdmi

I am attempting to build an rpi-sdimg using yocto. I have attempted to bitbake "rpi-basic-image-raspberrypi3" and "rpi-hwup-image-raspberrypi3". My "conf/local.conf" looks like : MACHINE ??= "...
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1answer
410 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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3answers
3k views

Do HDMI to VGA cables work with Raspberry Pi?

Do these kinds of HDMI to VGA cables work with Raspberry Pi?
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2answers
863 views

Raspberry Pi custom resolution issues for 12.3" 1920x720 LCD

I have an LCD from a Chonese manufacturer. 12.3", resolution is 1920x720 pixels. When I set the following in the config.txt file I get some white stuff at the bottom of the screen. Any ideas why? ...
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0answers
93 views

Change resolution on LS055R1SX03 2k screen

I bought the HDMI to MIPI LS055R1SX03 5.5 inch 2k IPS LCD module 2560*1440 from Aliexpress, Plugged it, and used a configuration found on the internet to be able to see any image. Surprisingly it ...
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1answer
441 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
46 views

Wifi disabled after reconfiguring HDMI

I am using a Raspberry Pi 3 A+ with Raspbian Stretch (updated/upgraded about a month ago), connected to a Manga Screen 2: http://wiki.thing-printer.com/index.php?title=Manga_Screen_2 I have used this ...
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4answers
5k views

How do you make the HDMI hot-pluggable on a Pi?

We have a Pi3 connected to a TV on a remote worksite. Sometimes, the remote site has a power outage, and when power is restored, the TV and Pi get power at the same time. The problem is that the TV ...
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3answers
2k 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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1answer
70 views

raspberry 4 goes black after setting the resolution to 4k

My Raspberry Pi 4 was working fine but as I was using it on a 21:9 3840x1440 screen I decided to set that resolution for the raspberry as well. However, very quickly after it went totally black and my ...
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1answer
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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HDMI No signal on one tv but signal fine on another

I am using a pi zero w. I have used it on two TV's to date. It's been a month or so since I last used it and now it works on only one of the TV's. This wouldn't be a problem but I am giving this to ...
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63 views

Launch GUI on specific monitor on Raspberry Pi 4?

How can I open a GUI application through the command line on a specific monitor? If I run xrandr my output is as follows: Screen 0: minimum 320 x 200, current 2192 x 1080, maximum 7680 x 7680 HDMI-1 ...
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2answers
7k 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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0answers
27 views

Using RasPi as WiFi

I have a projector installed at my ceiling. I cannot easily run a cable from the projector to my computer. Therefore I'd like to be able to stream movies to the projector using the raspi, while still ...
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0answers
21 views

Full KMS causes blank screen on Pi 3 Compute Module

I am currently using a Pi CM3 on a custom PCB. The board boots fine with a desktop using fake KMS, but when using full KMS, no image is present. Boot image appears but once at desktop there is no ...
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1answer
84 views

Why is my input source not changing when I send the <Active Source> message via CEC-Client?

Problem/Question When I use CEC-Client to send the active source command to switch the TV input to a particular source, nothing happens. What am I doing wrong? Environment I have a Raspberry Pi 4 ...
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1answer
225 views

Control GPIO from HDMI V sync

My Project on a Raspberry Pi 2 with Raspian stretch. I want use a GPIO pin to drive 3d shutter glasses (glasses hacked to receive 0 _3V square wave) Video playing on the HDMI port and A Pin goes on ...
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2answers
2k views

Switching TV to DVI input via HDMI / CEC

I have a Samsung TV / monitor with HDMI, DVI, VGA inputs and more. My Raspberry Pi is connected to the HDMI input, my computer to the DVI input. With echo as | cec-client -s -d 1 executed on the Pi, ...
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1answer
1k views

Getting the active source via HDMI-CEC doesn't seem to work

I am very new to HDMI-CEC. I have a Pi3 and a Pi2 connected to a TV's two HDMI ports. If I run: echo scan | cec-client -s -d 1` I get the following output: OpenELEC:~ # echo scan | cec-client -s -d ...
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0answers
557 views

Is there a way to enable VSYNC on RPI4?

I am using Raspbian Buster with default LXDE/Openbox configuration. Screen tearing when moving windows around or watching videos is very noticeable. Is there a way to enable VSYNC on RPI4 using HDMI?
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0answers
228 views

Does the Raspberry Pi 4 support HDCP?

I could not find a definitive answer anywhere in the specs or on the web. I am looking for a device that will allow me to play Amazon Movies (and those of other platforms) in 4K. Thank you!
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0answers
59 views

HDMI man in the middle

I want to build a screen grabber that sits between HDMI devices - like a television - to capture screenshot and send to a server every interval. Before I buy hardware I do not need, can it be dome ...
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0answers
433 views

How to configure duplicate screen on a Pi?

I have a Raspberry Pi 2 connected with a TouchScreen. I also connect another external display via HDMI. Goal I've been trying to make my external display show as duplicate mirror the one on the ...
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1answer
281 views

HDMI Audio not working with Raspberry 3 B and Raspbian Buster

Volume control says "No volume control on this device" When trying to force output to 3.5 or HDMI in raspi-config, it fails with error "There was an error running option..." When running update in ...
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0answers
62 views

Turning on/off specific HDMI port on Pi 4

According to the docs, vcgencmd now can specify which hdmi port as a second argument for raspberry pi 4, so I did sudo apt update then sudo apt upgrade but vcgencmd display_power 0 7 returns error=2 ...
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0answers
547 views

What does amixer cset numid=3 3 do?

In order to solve missing audio via HDMI with Raspberry Pi 4B (Raspian Buster) I came across amixer cset numid=3 2 which didn't do the trick for me. But randomly I checked numbers from 0 to 4 and ...
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2answers
140 views

how to setup and mirror two visual screen (a) touch 3.5 touch screen in general 40 pin connector and (b) hdmi 1 over TV?

I have new 4GB Rasberry Pi 4. I would like to mirror a touch screen,3.5 inch TFT LCD over 40 point connector and HDMI 1 over TV. I could not connect both and mirror together. Sorry I new to Rasberry ...
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0answers
122 views

(Pi4) No Display when in OTG mode unless HDMI_safe=1

Im officially stumped. I have connected my Pi4 to my PC via USB to USB-C for OTG connection. Whenever I boot with the normal PSU to the USB-C port on the Pi4, everything boots correctly (display and ...
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1answer
156 views

Video playback on Raspberry Pi 3

I have a raspberry pi 3 connected to one of my TV's HDMI inputs. I've installed VLC, but videos won't play. The image will hang and the audio will continue to play in the background. Regardless of ...
2
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0answers
48 views

How to split a display into many and access all the screen

I'm trying to split the screen in raspberry-pi. and access each screen for each display I want the multiple layer in a single screen. Eg. my output screen resolution is 1024x720 in that i have to ...
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6answers
7k views

Raspberry Pi 3 HDMI Not working

I have raspberry pi 3 model b and windows 10 PC. I downloaded Raspbian instead of NOOBS in order to be able to modify the config.txt file. But I'm still having the same problem, that my display doesn'...
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1answer
35 views

How do I list the supported resolutions of my HDMI display/monitor?

How do I list the supported resolutions of my HDMI display/monitor? On the raspberrypi website, there is a complete list of modes supported by raspberrypi but it does not list only the ones supported ...
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0answers
25 views

Raspberry Pi goes blank after 10 mins or so, until the resolution is changed. and repeats

so I just got a really cheap and free desktop monitor from work, that's like 1280x1024 resolution. Now when I first connected the pi to the monitor it failed to boot at all... which was weird, but ...
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1answer
246 views

Raspberry Pi 4 touchscreen misbehaving when using a secondary monitor

First of all I recorded a video on the phenomenon, this might be more descriptive than my words: video of the problem I have a project in which I have to use two displays: one that is the 7 inch ...
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1answer
5k views

startx — -layout HDMI -layout TFT # at the same time?

This verbiage implies, if you want a desktop on both heads of a Pi(2) with a PiTFT hat, you just startx each desktop: startx -- -layout TFT & startx -- -layout HDMI & Various combinations of ...
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0answers
294 views

Raspberry Pi 4: Console on first HDMI screen, X11 on second HDMI screen

The new Pi 4 has two HDMI Ports. After booting Raspbian, the first screen (HDMI-0) should display the console and the second screen (HDMI-1) should display the X11 desktop. My first thought was ...
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1answer
2k views

HDMI: The current input timing is not supported for Raspberry PI3

While connecting to Raspberry Pi 3 to Monitor via HDMI cable, I am getting following error on the monitor. Error: "Current input timing is not supported by the monitor display. Please change your ...
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0answers
274 views

Raspberry Pi 4 drops hdmi connection for a second at boot tv reconnects, drops signal again after playing any type of video

I've been having a terrible experience with my raspberry pi 4 4G, with regards to a strange problem that's occurring. I am currently running NOOBS with raspbian/libreelec, and everytime after entering ...
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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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10answers
45k views

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 ...
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0answers
131 views

Display rotate not working in Raspberry Pi 64 bit

I can boot with a 64bit OS on a Raspberry PI 3, but when I change display_rotate (config.txt) to 3 (270 degrees), it stuck on the 4-colour initial screen. The funny thing is that when I use a 32bit OS ...
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3answers
4k views

How to connect laptop as monitor to RPi Zero

I have a non-WiFi RPi Zero and no monitor, but I have a laptop. I saw on YouTube only for WiFi versions. Are there methods to connect it to laptop for that?
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0answers
39 views

How to display live data and video on the pi's hdmi out port?

For a project I'm working on, I need to be able to display live data (as numbers, text etc.) and a video stream (from the pi's camera) directly to the pi's hdmi output. I know it is possible to do ...
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0answers
43 views

LCD screen not working with Raspberry Pi 3B+

I've got Raspberry Pi 3B+ and this screen and I tried to plug it up, but it's not working. OS configurations I tried: just Raspbian Waveshare drivers on same Raspbian some random drivers on same ...

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