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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94
votes
2answers
193k views

How do I force the Raspberry Pi to turn on HDMI?

I have a Raspberry Pi running Raspbmc connected through HDMI to a dumb HDTV. (Does not support HDMI-CEC). If I power on both the TV (both at source and display through remote) and Raspbmc at the same ...
57
votes
7answers
239k views

Can a simple cable convert HDMI output to VGA?

One may buy a simple HDMI-to-VGA cable, or an HDMI-to-DVI cable. Example: on Amazon. However, my vague knowledge is that these cables only work for video cards that have special support for this ...
16
votes
5answers
46k views

Multiple Display Screens

I want to build a mini multimedia system based on the raspberry pi B+, which has 2 display screens: The main screen (like a 42" LED TV), which plays the main video in Full HD. HDMI RCA/AV/Composite ...
13
votes
1answer
60k views

Calibrate overscan settings

There are options to adjust the the overscan settings in /boot/config.txt. # uncomment this if your display has a black border of unused pixels visible # and your display can output without overscan ...
4
votes
3answers
428 views

Use laptop screen without dismantling the screen

I need to keep the set-up clean. I did my homework and came across Connect Pi to an old laptop screen and Like a projector can I use raspberry pi to VGA port in my Laptop and both of them did not ...
18
votes
5answers
74k views

Larger Touch Screen Displays

I was hoping to find a larger touchscreen display that will work with my Raspberry Pi. I wanted to make a "kitchen use" kiosk for looking up recipes, watching cooking shows etc. I was hoping to find a ...
16
votes
2answers
22k views

Stopping Raspberry Pi display sleep

I'm using my raspberry pi displayed on a tv through HDMI. It boots up into the terminal and is fine, however, when I leave it for a few minutes, the display goes to sleep. I'm using an application ...
24
votes
2answers
121k views

Can Raspberry Pi 3 do 4K Video?

It looks like the Raspberry Pi 3 may be powerful enough to output 4K video, but I haven't seen anything about it anywhere. Does anyone know if the Raspberry Pi 3 can output video over HDMI at 4K ...
12
votes
2answers
14k views

prevent pi from turning tv on

I have a Pi (with Raspbmc installed on it) connected to an LG TV. I disabled the CEC options in XBMC related to turning the TV on/off. However, the Pi keeps turning the TV on when rebooting. I can ...
26
votes
1answer
6k views

Raspberry Pi Zero with Ethernet Over HDMI

The new Raspberry Pi Zero doesn't have any kind of wired Ethernet connection. Has anyone have tested if Ethernet over HDMI works? I did not find any info in the web or even what version of HDMI the ...
3
votes
2answers
2k views

Raspberry Pi Not Working

I got a Raspberry Pi 2 and it did not work with the newest version of NOOBS (flashing LEDs). There is nothing on the TV/monitor. It just says there is no HDMI input. I tried it with an older ...
1
vote
0answers
133 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 ...
5
votes
2answers
1k views

Set RAM split based on HDMI status on boot

For the most part, I run my Raspberry Pi headless (which requires very little VRAM). However, I occasionally plug in a monitor (usually after I mess up my SSH configuration). Is there a way to have ...
26
votes
4answers
11k views

What qualities should I look for in a small, 7“ or 10” monitor?

Hi, which small small and portable monitors would you suggest to combine with Raspberry Pi. As Raspberry Pi is part of huge range of different project please suggest which would be best in each of ...
22
votes
3answers
14k views

Which small displays have been confirmed to work?

Which small (7-10") displays have been confirmed to work with the Raspberry Pi? Also, what should I consider when looking to buy one of these displays or trying to integrate one with my Raspberry Pi?
5
votes
4answers
6k views

Turning on HDMI programmatically doesn't work

I would like to turn on/off the HDMI via SSH. I use this command to turn off the HDMI: sudo tvservice -o and it works fine, my monitor turns off. But after that I would like to turn on the monitor ...
1
vote
1answer
1k views

When using display_rotate=1 the screen tears

I'm trying to set the rotation on the Raspberry Pi to portrait mode. On startup the RPi GUI is shown looking fine but if I move anything (a window for example) then the screen tears (not fully ...
4
votes
2answers
3k views

Using RPi touchscreen as primary display, how to display image on HDMI?

I am using RPi 3 and a RPi touchscreen as my primary display. I would like to output an image to an HDMI display to be displayed for x seconds (to project an image for a 3D printer). HDMI output is: ...
2
votes
3answers
4k views

How can I change the HDMI resolution without rebooting my Raspbian system?

How can I change the HDMI resolution of my running Raspbian (Jessie) system without rebooting my Raspberry Pi 3?
1
vote
0answers
149 views

How to make an external monitor working while lcd display is connected? [duplicate]

I have a touchscreen lcd display connected to Raspberry PI 2. Everything works fine: os is booting etc. If I connect an external monitor via hdmi, I get some output on the monitor and some output ...
6
votes
3answers
6k views

How much current can I draw from each model's HDMI socket?

I've seen a few questions that speculate as to how much current is available from the HDMI socket but I can't find any concrete values. I've gotten away with using a couple of different HDMI to VGA/3....
5
votes
2answers
1k views

Why my HDMI->DVI converter works only when powered from PC?

So, I have a Raspberry PI B+. It has HDMI video output. Since the only device in my house that has HDMI input is the TV, which is in another room and is usually occupied by my wife, and as my monitor ...
2
votes
4answers
14k views

Raspberry Pi HDMI no signal

I've just got my raspberry pi. When I first tried, everything went on well, I got the image on me TV and I tried to set wireless connections. But when I was trying, the screen suddenly displayed "no ...
1
vote
1answer
155 views

New Raspberry pi video output to laptop not working

I got this new raspberry pi 3 B with an 8GB sd with the necessary OS options. I tried the following: HDMI I tried connecting the hdmi cable from pi to my laptop which has linuxmint 17.03 Rosa ...
0
votes
1answer
3k views

Can RPi dynamically switch between HDMI and NTSC output, or does this require a re-boot?

I am developing an application that will use the NTSC output. It displays mostly numeric data (preferably in various font sizes and colors) and a couple of graphic analog-style "meters". The desire ...
0
votes
2answers
1k views

How to make desktop computer display RPi's desktop via HDMI?

I just bought RPi and installed Raspbian on it and I'm pretty new to the topic. My current setup at home does not contain a display with HDMI connection (it has VGA and I don't have a VGA-HDMI ...
16
votes
4answers
59k views

Stream videos wirelessly from PC to Pi to TV?

I have a collection of movies (Please note: Mostly 1080p) on my external hard disk drive. This drive is attached to my PC (Mac). The external hard disk also contains some important work files, hence I ...
15
votes
4answers
17k views

Controlling the HDMI output via SSH

I am yet to receive my Pi, however I've been looking into what I would like it to do. One of the features I am looking forward to is using it when it is plugged into my TV (via HDMI) to access the ...
7
votes
2answers
4k views

Detect HDMI and Start GUI

We build an applications that supports a server mode and a GUI mode. Now the XServer and the application should start, if a HDMI Cable is connected otherwise it should only run the server. So whats ...
5
votes
1answer
13k views

Turning 'tvservice' on and off leaves screen blank

I'm running the Qt5 application on my raspberry pi and I would like to introduce some kind of a power-saving feature. I don't use x11 or wayland, because I don't need it, but I use gles2 (OpenGL for ...
13
votes
3answers
10k views

How to reinitialize HDMI without rebooting the RPi

I've found that my Raspberry Pi2's HDMI port only works if there's something attached to it when the RPi initially boots. If it boots with nothing attached, and I later attach a monitor, nothing shows ...
6
votes
2answers
20k views

stopping RaspPi / raspbmc from auto changing source on tv [duplicate]

My Pi is connected to my TVs usb port which works great and I use the TV remote to control it - which I also enjoy. The problem is whenever I turn on my TV, the pi changes the TV input source even ...
7
votes
1answer
19k views

How to make Raspberry use HDMI audio as default system output?

I've just installed Raspberry Pi and everything works great, except I can't get the default system sound to use HDMI. If I run something like omxplayer -o hdmi <filename> then the sound works, ...
7
votes
2answers
9k views

Touchscreen w/ HDMI output only when a display is attached?

Probably a very simple question, but I haven't had much luck finding a answer on my own. I have a Tontec 3.5" touchscreen plugged into my RPi2. Is there any way that I can use the touchscreen when ...
4
votes
2answers
10k views

Raspbmc UI flickering, virtually unusable

I just got Raspbmc up and running on my TV...except that it is flickering like crazy. It's flickering so bad, the skin almost looks like complete noise. I can make out the text in the menus, and ...
4
votes
3answers
23k views

Blank screen after installing Raspbian

I added this to my config.txt file: hdmi_drive=1 I can see a rainbow and recovery mode prompt. I pressed Shift key to enter recovery mode and installed Raspbian. After installation, I can see a ...
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 ...
8
votes
1answer
2k views

Can't get Pi to work with a Sony SDM-S74 DVI-D monitor

I have just bought a new RaspberryPi that I'm trying to get working with a Sony DVI monitor. I'm hoping someone can help me. I installed Raspbian on a 8GB card, connected the Pi to a Sony SDM-S74 ...
4
votes
3answers
2k views

Do HDMI to VGA cables work with Raspberry Pi?

Do these kinds of HDMI to VGA cables work with Raspberry Pi?
4
votes
4answers
9k views

Can I use usb port for display purposes?

I want to buy a new Monitor for Rpi. I don't have budget for HDMI monitors not even for powered HDMI to VGA converters. So can I use vga to usb data cable and use it with powered usb to connect ...
3
votes
1answer
2k views

What to look for in a large HDMI+USB touchscreen for raspberry pi?

I have been searching quite a bit for a larger (14"+) monitor that has basic out of the box touchscreen capability with the raspberry pi. One that uses USB for the touch connection and preferably HDMI ...
2
votes
3answers
1k views

Detecting TV power on/off without CEC

Is it possible to detect when I turn on/off the TV? Unfortunately my TV does not support CEC, but I want to somehow stop the XBMC process when the TV is switched off (or uses a different source).
2
votes
2answers
6k views

Force sound over 3.5mm jack and video over HDMI

I am building an application where the sound needs to be over the 3.5mm jack and video over HDMI. However, sometimes it does send the sound over HDMI and 3.5mm jack. And sometimes it just uses HDMI ...
2
votes
1answer
4k views

How to enable sound on HDMI?

I have looked at all kinds of tutorials, I modified the /boot/config.txt by adding hdmi_drive=2 and sound just does not work or if it does it always is over analog out. I just want sound over HDMI ...
1
vote
1answer
241 views

TV display resolution issue during runtime

when I tried to tvservice -e "CEA 16", the TV's screen always black-out. Whether the option is not supported or is it a bug. I am currently, running RASPBIAN NON-NOOBS and running 4.8.16 kernel. Will ...
1
vote
5answers
2k views

Dual touch screens , one for input and a second for output

I am working on a project where I will need to use two displays. One small touch screen display for easy user input and one HDMI display for video output. So pretty much the user would select an ...
10
votes
2answers
5k views

Audio over HDMI - hello_audio.bin works but not aplay

I'm having problems getting audio over HDMI working correctly (running ArchARM). I have in my /boot/config.txt: hdmi_drive=2 I compiled hello_audio.bin and ran it with 0 and 1 as args, both work (...
4
votes
1answer
2k views

HDMI sound: omxplayer works but not aplay

I want to use text-to-speech programs like festival and espeak, but they don't produce any sound. I'm able to play sounds with omxplayer, but aplay, festival, and espeak are all muted. I've tried ...
3
votes
1answer
2k views

Set HDMI refresh rate

I would like to set my HDMI refresh rate to 100 MhZ as supported by my TV, however using the code below always set it to 60 MhZ: hdmi_group=1 hdmi_mode=40 Any idea why or suggestions on how to ...
3
votes
3answers
1k views

Rotate Display Depending on HDMI or Composite Output

I've edited the config.txt file and added display_rotate = 1 to achieve portrait display on a small 7" screen. That works great for the smaller screen but when I plug my Raspberry Pi into the TV using ...