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.

175 questions with no upvoted or accepted answers
Filter by
Sorted by
Tagged with
4
votes
0answers
636 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, ...
3
votes
0answers
336 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!
3
votes
0answers
326 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 ...
3
votes
0answers
1k views

Raspberry Pi 4 - Dual Audio with Dual HDMI

I have a Raspberry Pi 4. The thing is, I want to play 2 videos at the same time, since the RPi-4 has 2 HDMI outputs. BUT I also want to have split audio. The audio from video 1 should go out over the ...
3
votes
0answers
165 views

RPi cold boots into low resolution (LCD)

I have this LCD connected to my RPi B+ (HDMI). I have configured the boot config.txt to enable its 1024x600 resolution, however, on COLD boot - it runs at a lower resolution. Only after a SOFT reboot, ...
3
votes
0answers
963 views

Bluetooth Input Not Outputting High Quality Audio to FM

I have Raspian Wheezy running on my Raspberry Pi. I have set it up to run pifmplay and output the sound to HDMI - (Pin 4 on GPIO) so that the Pi is now working as an FM Transmitter. This part works ...
3
votes
0answers
2k views

Control LCD brightness?

Is there a way to programmatically control LCD brightness of the screen connected to RPI over HDMI? As far as I could figure there is really no way to achieve this with RPI over HDMI. What about RPI ...
2
votes
0answers
34 views

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 ...
2
votes
0answers
72 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 ...
2
votes
0answers
59 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 ...
2
votes
0answers
880 views

How can I get my new Raspberry Pi 4B to output 1080i video

I finally got into the Pi world with a model 4B. I've updated it to Raspian/Buster and have the network working (wireless and wired - but just using wireless right now). I'm running it using VNC-...
2
votes
0answers
121 views

How do I capture and stream HDMI audio out to LAN

I have a RPi that is running videos with omxplayer and outputting to my tv. HDMI video and audio out work just fine, but I would additionally like to stream only the audio to my network (via RTP or ...
2
votes
1answer
469 views

How to start xorg on a physically connected display via SSH?

The pi is configured to start into text mode so that no xorg libraries are loaded during normal operation. Yet I would like to be able to occasionally run an xorg desktop session when connected to an ...
2
votes
0answers
148 views

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 ...
2
votes
1answer
205 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....
2
votes
0answers
142 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 ...
2
votes
0answers
1k views

raspberry pi stuck on “welcome to pixel” page

I am a college student working on a raspberry pi project. I recently got my raspberry pi and I was able to display the pi on a TV monitor via HDMI few days ago. However, I had to download some ...
2
votes
0answers
98 views

Assign HDMI outputs of a stacked Raspberry Pi to separate outputs

If you stacked 4 Raspberry Pi's, as you would a regular cluster computer, can the HDMIs of each Raspberry Pi be assigned to separate AV outputs or are there any programs, that do this for you. For ...
2
votes
0answers
432 views

*THE* weirdest display issues

I am having (very VERY) strange display issues on my Pi 3... I am using an HDMI-VGA Adapter ( https://www.adafruit.com/product/1151 ) which works perfectly fine (it works with many different devices ...
2
votes
0answers
953 views

Why would my Raspberry Pi only display a blinking “_” after bootup

I've attached a HDMI monitor to my Pi running Raspbian. In the past external displays have worked fine. Recently, when I connect my Pi to a HDMI monitor I get the usual bootup screens and the bootup ...
2
votes
1answer
1k views

Adjust brightness of 7 inch Waveshare display

Is it possible to control the brightness or switch on and off the backlight of an Waveshare display via command line or a script? I'm using the 7 inch version (rev2.1) with a resolution of 1024x600 ...
2
votes
0answers
27 views

Raspberry Pi 2 Audio vs Video Clash

So, I'm having an interesting issue. Those of you who have seen me around know that I don't usually use a GUI of any sort with my Pi. However, I recently got another one and decided to make an ...
2
votes
0answers
3k views

Getting touchscreen to work in raspbian / kodi

I got a HANNS-G HT231HPB touchscreen which I want to get fully working on raspbian and kodi. It seems to work in the normal lxde on raspbian, but when I start kodi I get no touch events. Can someone ...
2
votes
0answers
93 views

Raspberry Pi 2 Model B no image

I've just purchased a Raspberry Pi Model B, I've installed NOOBS latest version after I've formatted card with SD card formatter. Problem is when I'm booting it appears the menu to install Raspbian, ...
2
votes
0answers
612 views

Raspberry Pi - HDMI damaged?

My Raspberry Pi have some strange display output (as seen in bottom right corner of attached image). Yesterday all worked fine. Today I went to an other place and connected the Pi to the display. ...
2
votes
0answers
787 views

Sharp 50LD264E CEC not working with OpenELEC on RPi

I can't get HDMI-CEC to work with a Raspberry Pi running OpenELEC 4.2.1, with my old Samsung TV it worked correctly, but my new Sharp 50LD264E doesn't work. I've checked all the relevant settings on ...
2
votes
0answers
320 views

HDMI Passthrough on TV

I am researching the feasibility of using a Raspberry Pi as a pass-through device on my TV. The goal is to put this in the middle of a connection between the cable box and the tv. I would like the ...
2
votes
0answers
178 views

Raspberry Pi B can be seen on LAN but no Video output on either HDMI or RCA

My Raspberry Pi B running RaspBMC recently stopped working, I found that the SDCard had died. I rebuilt a new SDCard with the latest RaspBMC download. The LEDs on the Pi all illuminate, I can see ...
1
vote
0answers
25 views

Raspberry Pi 4 7inch HDMI touchscreen issues

I am using 7 inch HDMI touch screen with Raspberry Pi 4. I am having below issues: I have connected the HDMI cable to the touchscreen and connected the mini hdmi to hdmi0 of pi. I have also connected ...
1
vote
0answers
28 views

Pi 4 thinks I have 2 displays?

I'm sure there is a better way to ask this, so I apologize in advance! My Pi 4 seems convinced I have 2 displays connected. I can change the resolution for HDMI-1 and HDMI-2, despite just having 1 ...
1
vote
0answers
20 views

my RasPi 4B 4GB will not display on my tv

I just got my raspberry pi 4 4gb in the mail today. I plugged it up to my TCL Roku TV via hdmi but nothing would display on the screen.
1
vote
0answers
25 views

Nothing on screen while booting

I am having trouble booting my raspberry pi 0 w. I am using a 32 gb micro sd card with noobs downloaded on it. I have followed the steps on the raspberry pi website to boot the pi, but when I plug in ...
1
vote
0answers
32 views

Unable to turn on/off my LG-1500 projector via HDMI-CEC

I am trying (and failing) to control the power state of my LG PF-1500 projector through HDMI-CEC. According to this forum thread it should be possible. LG calls its implementation SIMPLINK, which I ...
1
vote
1answer
34 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 ...
1
vote
0answers
54 views

Pi4B no 1080p output only 1024 x 768 Solved

I'm running Buster (with Pi-4 options), with an HP2311 23" monitor rated as 1920x1080 60Hz. The maximum resolution offered is 1024x768. With the Stretch installed, it is quite happy at 1080p. In ...
1
vote
0answers
23 views

Turn off HDMI on Musl Aarch64 OS

Objective I want to turn off HDMI on my Raspberry Pi 3 Model B. The binaries for Raspbian does not work on my OS because it is linked to a different standard c library. Before I go down the rabbit ...
1
vote
0answers
28 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 ...
1
vote
0answers
774 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?
1
vote
0answers
327 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 ...
1
vote
0answers
830 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 ...
1
vote
0answers
1k views

Raspberry Pi 4B no video

I just bought two raspberry 4s (1Gb and 2Gb of RAM) and am unable to get the slightest video signal out of them. I tried every combination of the following components: Raspbian buster lite/desktop 5V ...
1
vote
0answers
184 views

HDMI power circuit on the Raspberry Pi 4

The previous models of the Raspberry Pi used different circuits to connect its 5 V power rail to the HDMI connector, i.e. How much current can I draw from each model's HDMI socket? Especially the ...
1
vote
0answers
33 views

Is it possible to adjust the backlight of a DELL U2414H monitor connected via HDMI?

I have a magic mirror I'm building that has a RPI at it's heart but even with the screen blanked at night, I can see the backlight glowing. Is there any way to adjust backlight brightness via the ...
1
vote
0answers
23 views

How do I stop my HDMI going off

for some reason, after a while the screen connected to my RPI 3B+ goes off, and stays off, until I unplug it and plug it back in again. I only run in console mode, and running alt+F[1-4] does nothing,...
1
vote
0answers
27 views

Ethernet speed: Screen ON vs screen OFF

I've a Raspberry Pi 3 B+ with Ubuntu 18.04 installed. With an SSH connection with my Kubuntu PC, the transfer is good (4.5Mo/s) when RPi's screen is OFF (via xset dpms force standby) but if the RPi's ...
1
vote
0answers
30 views

My raspberry pi 3+ suddenly stopped displaying

I've been using this raspberry pi for months to run LibreELEC to run Kodi. One day it didn't let out a HDMI signal. I no longer am able to a HDMI signal at all, my SD card is fine, I even reinstalled ...
1
vote
0answers
93 views

Unable to get HDMI connection via Raspberry Pi 3 B+

I have a Raspberry Pi 3 B+ model and a FLATRON W20437 LG monitor along with a 5V 2.8A Power Supply and a keyboard. After I load the contents of Raspbian OS with stretch on the SD Card (32 GB Samsung ...
1
vote
0answers
76 views

EDID problem with different monitors

I've got 2 monitors I use with a pi. The HP monitor self identifies root@raspberrypi:/home/pi# tvservice -n device_name=HWP-HP_L1755 & it is happy with the preferred hdmi settings root@...
1
vote
0answers
493 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 ...
1
vote
0answers
204 views

SONY TV as Display / Monitor

Background: I have successfully used pi-3b+ to display on LG LED TV, New model Sony 4K LED TV. Requesting your support: The year 2011 SONY 40NX710 model is showing blank (No desktop / text-console). ...