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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45 views

HDMI display rotated, but not X keeps landscape aspect ratio

PI 4 I've added display_hdmi_rotate=1 to /boot/config.txt and the display rotates. I've also tried =3 with the same results described below. During boot the Raspberry Pi Desktop welcome splash is ...
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1answer
26 views

Getting 2560x1600 resolution from RPi 4B on HP LP3065 monitor

I have a HP LP3065 workstation monitor which is 10+ years old and it only has 3 DVI-D Dual-link inputs. You can see its specs here. It can only work in native resolution 2560x1600 or quarter ...
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0answers
27 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
420 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
39 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
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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
45 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
660 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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1answer
42 views

Raspbgerry pi 4 HDMI works on TV but not on monitor

My pi 4 outputs as normal to my TV but when connected to an HP2311 monitor there is no display. I have tried the usual config.txt tricks i.e. hdmi_force_hotplug=1 hdmi_drive=2 hdmi_safe=1 ...
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1answer
15 views

Use HDMI if present, otherwise TRRS

I sometimes use my Raspberry Pi OSMC install on an HDMI TV and sometimes on an older set with composite video phonos. there are many posts about disbling teh HMDI output. Having just read the ...
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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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25 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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1answer
449 views

Software adjustment of gamma/brightness settings in Raspbian

I am trying to find a way to control the apparent brightness of my external screen on Raspbian Stretch. In my situation, there is no need to actually control the backlight, as I only want to change ...
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1answer
874 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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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
9 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
36 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
178 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
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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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202 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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2answers
35 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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0answers
104 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
39 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
338 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
121 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
42 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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246 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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1answer
58 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
73 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
61 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
119 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 ...
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0answers
42 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
6k 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
30 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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1answer
289 views

Pi Zero HDMI Problem

I have problem with connecting pi zero to tft screen over hdmi. I tested hdmi cable, config file(same sd card) and tft screen with Pi 3B, I tested micro hdmi adapter(which connected to pi zero) with ...
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7answers
13k views

Raspbian, no audio HDMI, have tried all the troubleshooting I can find

I know this is a noob question, so I apologise in advance! I've been googling for hours, have ran through all the steps for troubleshooting sound through HDMI; un-commenting the config file sound ...
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1answer
68 views

First time setup - no HDMI output

At first install I get no output to my monitor at all. Have tried two different monitors and two different HDMI cables. Black screen. I assume this must be a hardware error, or have I missed something?...
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1answer
38 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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0answers
20 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
114 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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1answer
128 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
4k 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
232 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
1k 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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1answer
58 views

Pi 3 Model B doesn't display anything

After setting up Jesse 09/23/16 on 8GB SD Card, the Pi booted fine and I played around with the X-Windows environment. Upon "Shutdown", and power recycle, there is no HDMI display. I do get the ...
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1answer
95 views

Bleeding over edges of Samsung TV, cant see menu bar

For some reason my Raspberry Pi 3b is bleeding off the edges of the screen, and I am unable to see my menu bar. This happened after a reboot, and wasn't happening before. I am using HDMI as my input/...