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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623 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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947 views

Raspberry Pi 3 Model B+ goes to black screen after a short while of inactivity

It ranges between 10 to 30 minutes. It is attached to a TV via HDMI. The monitor will go black. Moving the mouse of tapping the keyboard of the Raspberry Pi will "wake up" the screen pretty quickly. ...
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74 views

3.5in TFT screen hat and Raspberry Pi 3+b

I'm trying to understand something about the MPI3508 screen I purchased (https://www.amazon.ca/dp/B07DQKQG6X). I tried powering it via usb and connected a PC in its HDMI input and got it working (the ...
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1answer
258 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 a xorg desktop session when connected to an ...
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2answers
1k views

HDMI audio on Raspberry pi 3 b not working

I've already seen Audio over HDMI not working on Pi 3 (audio not working though HDMI, but working though speakers) but the actions described by @Vader did not work for me. The fact is that it ...
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1answer
223 views

Display controller for HDMI shows no signal only for Raspberry

I'm bought a (notebook) display LP171WP4 (TL)(01) and a display controller. Both are working if I connect it to my Macbook via HDMI. But with the Raspberry PI 3 B it doesn't work. The display is on ...
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0answers
146 views

How to troubleshoot a permanently blinking green light on a Pi3b?

The green light on a Pi3b is blinking permanently, even after bootup. It outputs two flashes at a time for as long as the power is on. Is this normal? If not, how do I troubleshoot this? Background ...
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0answers
153 views

raspberry pi model b+ Not booting

I recently bought a raspberry pi 3 b+ from amazon and when I got it delivered the package was already opened, so I just want to check if my raspberry is working or not so I formatted a compatible sd ...
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2answers
2k views

HDMI vs DSI, pros and cons? [closed]

I am curious what the main differences are between using the HDMI output or the DSI connector to hook up a screen? I understand that HDMI carries audio while the DSI ribbon connection will not, and ...
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1answer
25 views

how do i improve my HDMI resolution

my video resolution has always been great! but i downloaded a graphical interface for my pi Bluetooth and know i can not achieve a good picture on my hdmi to my tv the code was downloaded from sudo ...
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1answer
514 views

Showing an image on HDMI (DSI, HDMI screens connected)

I have a Raspberry Pi 3B device connected to a LCD '7 (7 inches LCD, its a touch screen I believe that's called DSI not sure) and also a HDMI screen. By default Raspbian considers the LCD as the ...
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1answer
245 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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1answer
601 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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19 views

Pi zero no HDMI output on laptop [duplicate]

I am new to Rasberry pi and trying the first boot . I have formatted the SD card and have copied Noobs . I can see activity LED glowing and remains stable after a while. I have connected HDMI cable to ...
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69 views

aplay with 3 outputs; choose any two? NOOBS

I have a 3B+. I need to be able to tell aplay, on each invocation, which of 3 audio outputs to use - headphone out, HDMI, or a bluetooth device. I can get any ONE of them to work by right clicking ...
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3answers
3k 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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65 views

Raspberry Pi (or an alternative) with HDMI auto-switch

I want to use Raspberry Pi 3 with an HDMI auto-switch, but I understand that the Raspberry Pi is an "always-on" computer, so auto-sensing doesn't work with it (the HDMI port keeps appearing active ...
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203 views

problem with video HDMI video output, distorted image

I am playing with a Rpi3 distro (Android Raspand) and I can't see anything. Image is twisted and distorted, please see how I am playing with config.txt following this guide https://raspberrypi....
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1answer
98 views

Missing L4 chip near HDMI port, not boot up and usb port no power output

My rpi work perfectly until I touch it, It not boot up then I found the L4 chip HDMI port is missing(I have touched HDMI port I think my fingernail pull it off...). I found that tiny chip in the box ...
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480 views

Enable HDMI port and force hot plug using crontab

I have a Pi connected to a Polaroid tv by HDMI cable in order to create a "Dakboard". Now when initially starting the project the TV was acknowledging a signal coming from the HDMI port (ie the no ...
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1answer
35 views

How to display native-resolution console on the monitor after booting without one?

I've started my Raspberry Pi Model B without having any monitor plugged. Then I plugged the HDMI monitor, but got no signal. So far I've been able to turn it on by using the command: tvservice --...
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1answer
244 views

Switch audio output not working

I'm using Raspbian Stretch Desktop for my Raspberry Pi 3B. I'm using a VGA screen with an HDMI to VGA adapter, so I want the jack to work as my main audio output. If I unplug the HDMI and reboot, the ...
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0answers
252 views

Displaying only video/image while python program running on background

I have a Raspberry Pi 3B with a Python3 code running 24/7. Right now, I'm running Raspbian Stretch desktop on console mode with no I/O. I only connect a screen via HDMI and an USB keyboard for ...
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1answer
146 views

SPI vs HDMI power consumption

I'm using a Pi Zero in a portable project and wondered if there were any power savings to be made by using an SPI display over a HDMI one or vice versa.
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0answers
56 views

Raspberry Pi HDMI blacking out and keyboard,mouse freezing

My setup consist a Raspberry Pi 3 model B running raspbian jessie. It is powered through GPIO header by a 5V, 5A switching regulator. I had a HDMI monitor, a flash drive and a USB hub connected with a ...
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2answers
452 views

Prevent text console from periodically switching to boot screen

I'm running arch linux (aarch64 kernel 4.16.9) on a Raspberry 3b, and using the text mode console on a monitor attached to the HDMI port. Everything basically works on the device, except for one ...
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1answer
442 views

HDMI Desktop in portrait mode not working

I have a Raspberry Pi 3 connected to a Toshiba TV HDMI port, which I want to use in portrait mode think to display a restaurant menu. I have changed the /boot/config.txt and added the following: ...
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1answer
270 views

Waveshare 4.3inch HDMI LCD shows blank white screen

I have a Raspberry Pi 3 model B running the latest version of Rasbian Stretch. Yesterday I've received my Waveshare 4,3 inch display. First thing I did was build it in my project, due to save height ...
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0answers
1k views

Auto-detect HDMI on boot (touchscreen attached)

I'm using the 7" official Raspberry Pi touchscreen, attached with a ribbon, on an RPi 3 Raspbian Jesse. This screen does not support displaying on both it and HDMI output simultaneously, so I can only ...
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1answer
45 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
86 views

RaspPi 3 unresponsive after HDMI cable swap

I’m running Kodi on a RaspPi3 as a media centre solution. The HDMI cable feeds into a 4-port HDMI switch to allow access to various other devices. I have a TV and a projector so that I have to change ...
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1answer
519 views

Detect TV remote buttons being pressed with CEC client

My TV supports CEC and is connected to my Raspberry Pi with HDMI. I've installed cec-client on the Pi and followed this tutorial, but it only explains how to turn the TV on and off with the Pi. What I ...
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1answer
994 views

Does display_rotate still work?

I'm trying to use this runtime config.txt parameter under Raspbian Stretch and an external LED monitor on the HDMI port to no effect. It's hard to tell from posts here and elsewhere if this setting ...
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2answers
27 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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1answer
338 views

Force 1080i video at 59.94fps

I'm trying to set up a Raspberry pi to output video to an ancient TV transmitter which requires HD interlaced video at 59.94fps. The Pi HDMI output is connected to a BlackMagic micro HDMI to SDI ...
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2answers
876 views

No command line interface on HDMI but kernel logs printed

I'm currently trying to build my own custom Linux OS for my Raspberry Pi 3 and am experiencing some trouble. I'm using buildroot v2018_2. I configured the system using make raspberrypi3_defconfig ...
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1answer
490 views

How can I detect the HDMI status of the Pi?

I'm using the command: tvservice -M However, is not able to detect whether HDMI is connected or not. Is there other way to detect HDMI status?
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1answer
212 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 ...
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1answer
161 views

Output Kivy video sound to 3.5mm jack

I'm trying to play a video with sound using Kivy video. When the Pi is attached to a 7" touchscreen it plays the soundtrack from the audio jack as expected. However, when attached to a VGA or DVI ...
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0answers
533 views

Issue on Display Resolution

I am unable to set the correct screen resolution when trying to connect TV/Monitor(via HDMI) with RaspberryPi3 at runtime, the following are the steps: Disconnect TV if already connected Boot ...
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1answer
551 views

No /dev/i2c to read EDID from my BenQ projector

I'm trying to read the EDID information from my BenQ W1070 projector which is connected to my Raspberry Pi via HDMI. I have every generation/version of Raspis available, but am currently testing on ...
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1answer
5k views

Keep HDMI off on boot

I have a battery-powered RPi Zero W that is going to be hooked into a mobile laser projector. This is an experiential setup, so I need to be able to turn it off and on between uses. My goal here is ...
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0answers
538 views

Disable Power Over HDMI

I built a Retropie using a PI Model 3B that is powered via the GPIO pins. Specifically with this case which adapts micro usb to the GPIO power. Everything works fine except when I turn the system off. ...
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1answer
953 views

List of HDMI States (tvservice --state)

Is there an overview for all the HDMI states? Because I'm getting different ones but, don't know e.g: tvservice -s state 0x40009 [HDMI CEA (16) RGB lim 16:9], 1920x1080 @ 60.00Hz, progressive .. ...
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1answer
197 views

Enable audio over HDMI on Raspbian Jessie with AV Receiver

I am attempting to connect a Raspberry Pi Zero W with HDMI to an AV Receiver (Pioneer VSX-820). My interest is exclusively in playing sound over the speakers connected to the receiver, although there ...
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0answers
694 views

HDMI-Ethernet extender

I'm trying to redirect HDMI output of my Raspberry over ethernet to place a monitor 25m away from raspberry. I'm using a "Techly" HDMI extender like this. My connection scheme is similar to this: ...
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0answers
399 views

RPi3 on Sony Bravia HDMI Produces Flickering Lines

After working for a while, and with various distributions and SDs, my Raspberry Pi 3 no longer properly works with my Sony Bravia. With the HDMI inserted it now displays flickering, changing lines. It ...
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1answer
434 views

Show multiple HD streams at once on raspberry pi?

We have a situation where we have a large number of incoming HD video streams which we would like to monitor in a way similar to this wall of monitors each showing 16 channels. This can probably be ...
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1answer
66 views

Turn on display after reboot

I have a monitor connect to a Raspberry Pi via HDMI. When I turn on the Raspberry Pi with the monitor off, and then turn the monitor on, I don't get any output. The HDMI only comes on if the monitor ...
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2answers
5k views

How do I force the correct screen resolution in /boot/config.txt?

I've recently set up a Retropie which I have plugged into my TV. If I have the right input selected on the TV before powering on the Pi, then the image looks crisp and wonderful. However if I turn on ...