Questions tagged [display]

Display relates to the use and output of display systems for the Rasberry Pi. The built-in video connectors are HDMI, RCA composite (yellow plug), and a 4-pole 3.5 mm jack.

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No Custom Horizontal Resolution Below 800?

On my RPI 3 I can edit /boot/config.txt and use this to get my desired resolution of 400x200. hdmi_group=2 hdmi_mode=87 hdmi_cvt=400 200 60 6 0 0 0 hdmi_drive=1 However on my 3B+ it results in a ...
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RasPi4 shows two connected screens even though there is only one

So I'm currently building my Smartmirror with Magic Mirror and I have some problems with the screen configuration of my Raspberry Pi 4 running Raspbian Buster. I tried changing the screen orientation ...
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636 views

ST7789 Display on Raspberry PI 3

I just got an ST7789 240x240 display and i can't get it to work with my PI. i'm using this library: https://github.com/DjamesSuhanko/Python_ST7789 i installed all the python dependency's When i ...
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Lubuntu on Raspberry Pi 4(arm64) Display Resolution Setting

My Pi is running Lubuntu 20.04 LTS. It does not fit to full screen to my 1920*1080 monitor. The system is using 1824*984. And this is the only option it provides. Now there are two black strips on ...
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How I can identify and set a needed display module which was missing on boot time?

Summarizing the problem Can't identify a needed display module which is loaded within the initramfs on boot time. Providing details and any research After fixing the problem on the surface using ...
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1answer
144 views

How can I re-recognize my Raspberry (4 Modell B) display (Bruphny 4.0) like it was recognized per default with a fresh Raspbian Buster install?

1. Summarizing the problem No display (https://www.amazon.de/gp/product/B07XPM2ZS3) after LVM tutorial anymore. 2. Providing details and any research After using this Tutorial (Easy backups and ...
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1answer
55 views

Scaling down Raspbian for Adafruit PiTFT 1.14"

I want to use the Adafruit PiTFT (click here) 1.14" with the Raspbian Desktop. How can I scale the Raspbian Desktop down so that it will be normally sized on the 240x135 px screen? An example with ...
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Could not get EGL Display - Starting RetroPie

I have manually installed RetroPie, using the terminal and some tutorials.. Finally ready to start everything up... and then get this error: Error Creating SDL window! Could not get EGL display ...
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1answer
88 views

Error installing fakeXrandr library on Raspberry Pi (Ubuntu OS)

I have successfully installed a ubuntu image on my Raspberry Pi 4. I am trying to do some screen customization, and so as a result I'm looking to install this project, fakeXrandr: https://github.com/...
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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 ...
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579 views

ERROR on oled + 0.96 display: different mode has already been set!

I made two programs separately, but when I tried to put them toguether, the following issue came up: Traceback (most recent call last): File "/home/pi/CalculadoraDefinitiva/botaoLed.py", line 159, ...
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Monitor not recognized by other devices after having connected my raspberry pi 4

I have a weird problem and I simply can't find any solution to it: I use a Fujitsu Siemens monitor with a dvi to hdmi cable which works just fine with all my devices. However, after I connected my ...
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My raspberry pi HDMI is not working. What are my other options?

I got this old Raspberry Pi B+. One day, suddenly the HDMI stopped working completely. I know it boots up because I can still ssh into it. The thing is, I have no AV cables for alternate input. I ...
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55 views

4 HDMI display via USB

I want to use 4 HDMI small display modules on raspberry pi 4, but if i supply enough power to power on 4 display to raspberry pi, will display modules work well? Those 4 display modules will act as ...
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1answer
28 views

Get metainformation at boot-screen

I asked myself if there is a possibility to get metainformation of the raspberry Pi (like IP4 Adress, MAC Adress etc.) displayed on booting process. Maybe extended with a timeout to read the ...
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Connect flex cable to raspberry

I have an old tablet Galaxy Tab GT-P1000 and I would like to ask if it could be possible to connect to raspberry? Size of flex cable looks similar... Amazon
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211 views

4 inch LCD / touchscreen not working correctly

I have been trying to get a 4" LCD touchscreen (allegedly a waveshare 4inch HDMI LCD device, 800x480 + XPT2046 controller, but no branding, so who knows) working with a pi 3b to no avail. The problem ...
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Pixel doubling on 4K Monitor - Mouse, general UI laggy

I'm trying to use a 4K monitor with a Raspi 4 B rev 1.2, so far I was able to find out that I need to use the pixel doubling in --> Preferences: Raspberry Pi Configuration: Pixel Doubling Once that ...
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How to connect "FPV Night Vision QVGA 320X240 Monocular" to raspberry 4?

I am working on a project which need this module to be connected with raspberry pi 4 or 3. I tried some to convert into single RCA cable (worked) but I want to convert it into HDMI. I am unable to ...
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347 views

Problem with DIY Smart Glasses Projection module

I am making Smart glasses which will display android app, click pictures, notifications and many more, and which is to be displayed on a small prism I searched a lot of posts online, many of then ...
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3.5 inch DPI display setup on Android things. How to?

Hi please help with installation display to my Raspberry. It perfectly work with standard OS but I doesn't understand how to install it to Android. Display connected via GPIO. Does it general ...
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120 views

Controlling LED Matrix display with TF-S6UW0

I am using Rasberry pi 4 (4GB RAM version). What I am trying to do is be able to set the text of the matrix screen using a command or by calling a script (preferably in python). I am using a P10 ...
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Did anyone get a Miracast display working with a Pi 4?

I have tried using miraclecast, which builds without problems but won't find a Miracast screen which my Windows 10 laptop has no trouble to work with. pi@raspberrypi:~ $ sudo service wpa_supplicant ...
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Turn off HDMI output after receiving HTTP GET request

I'm building a security camera setup, and am displaying the camera feeds (RTSP streams) using a Raspberry Pi. I only want the display to be active when a motion event is triggered - this is handled by ...
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display a cross-hair within a picture with python3

I want to add a cross-hair pointing to a position within a picture frame and display it. How could this be done effectively using python3? Which library would be preferable?
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2k views

Get cheap ST7789 TFT display working through SPI (without CS pin)

I purchased a cheap Chinese ST7789 TFT (1.3in, 240x240) that is clearly identified as SPI compatible, tough it does NOT have a CS pin and also some of the pins seem weirdly named to me. I have been ...
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199 views

Is there a way to get DSI output on RPi Zero W?

I'm trying to make an inexpensive smartphone, So I don't want to buy a really expensive small HDMI display, so... DSI. But the pi zero doesn't have DSI output . I've looked into hdmi to DSI adapters ...
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510 views

How to detect LCD touch-display? and automatically configure for display?

A rPi3 B+ is Raspbian configured with a 3.5 Waveshare touch display HAT. There are two commands that toggle between the HDMI output and the HDMI output. git clone https://github.com/waveshare/LCD-show....
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Weird display on VGA monitor, Ubuntu Server 19.10 on Raspberry Pi 4

UPDATE: As I suspected lately, Ubuntu Server actually boots up. Nothing worked until I tried using an actual HDMI monitor instead of an HDTV or VGA monitor. I suppose the TV will work once I install a ...
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66 views

Extend Official Display Connections

Is there a type of extender for the official Pi display connections? I don't mean the 15 pin FFC, but the two directly on the display. I'm mounting the driver board separately from the display in a ...
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1answer
383 views

Higher resolution framebuffer modes?

I have a raspberry pi plugged into a 3440x1440 monitor. Without setting any explicit framebuffer_* options in /boot/config.txt, it comes up at 1184x624. The display is crisp and legible but individual ...
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1answer
467 views

Rotate screen 180 on the fly?

I think this may be impossible, but I'd like to rotate the display by 180 degrees on the fly, triggered by a button connected to the input pins. I built a cocktail-style MAME cabinet (RetroPie) but ...
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637 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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140 views

Live Holographic Display

I've seen others make a holographic display using a RPi, monitor, and a glass prism. The only thing the Pi is doing is playing back a pre-rendered video. But, is there a way/software program to ...
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2answers
3k views

Get message "Cannot open display "default display", when SSH-ing

Every time i ssh into my raspberry pi, i get message: Cannot open display "default display" I've tried going into raspi-config and installing all the locales. Doesn't change anything. I've then ...
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70 views

Connecting and displaying Raspberry Pi on Ubuntu based machine over ethernet cable

Hello dear Raspberry community. I was wondering if I could display Raspberry Pi 3 Model B on my Ubuntu laptop over an Ethernet cable? However, I can not do it with an ssh method, the reason being I ...
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2k views

USB Dual Monitor DisplayLink Docking Station for Pi 4 B? I have WAVLink UG39DKx docking stations

My WavLink UG39DKx docking stations are USB 3.0, have an HDMI and DVI out, plus 2 USB 3.0 and 4 USB 2.0, plus Ethernet, plus Audio out. Is there a reasonable way to get the docking station working? ...
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1answer
227 views

True console output to character LCD or similar?

Is it still possible to have text mode output to achieve real console output? That is, instead of using a virtual console, actually output characters directly to an character LCD screen? I'd like ...
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1answer
409 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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621 views

How to connect Raspberry Pi 4 to sparkfun SSD1306 / SSD1309 OLED transparent display?

I just got the an OLED transparent Display from Sparkfun and I want to make it run, I youtube it but didn't found anything. Please help me with that.
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4 Displays with diffrent output using Raspberry Pis

Core Problem: I need 4 displays to show diffrent output (simple images) For this kind of "Video Wall" problem, most solutions recommend one RPi for each display/monitor in a master/slave ...
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99 views

Use a 2.5" LCD in a Blaupunkt Dashcam for Raspberry Pi?

and thank you for reading my topic. I recently bought a "2.5" LCD HD Dashcam" from the Blaupunkt brand (BPDV122), although I am aware they have just used this design from another company. https://www....
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244 views

Will LattePanda IPS display work with raspberry pi zero?

I have LattePanda but its connector to which we connect flex cable is broken, so i am thinking to buy a pi zero and use it instead to display graphs. However i am not sure if it will work.
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How to connect ST7789 LCD to Raspberry Pi

I'm trying to connect to this LCD ( sry 4 japanese page:( use translate plz ) This monitor driver is ST7789, 7pins.[GND VCC SCL SDA RES DC BLK] And now I'm connecting to pi like this https://imgur....
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1answer
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No display output if I start raspberry pi and then start the monitor

If I switch on monitor first then switch on raspberry pi, it works fine. But if I switch on raspberry pi and then monitor or switch on both pi and monitor simultaneously no display is shown on monitor....
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Adafruit OLED (128x64) display very dimmed?

I bought the Adafruit 128x64 OLED Bonnet and tested it with the demo program. Unfortunately the luminosity is very low and it is not satisfying: I have tried to adjust the contrast from 0 to 255 but ...
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Setting application screen display layer

I am displaying a video onscreen with omxplayer using '--l 0' Is it possible to run a python program and set it's screen layer to > 0 Expanded info :- I am running omxplayer from within a python ...
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3k views

How to connect ST7789 LCD to SPI Bus 1 as 2nd screen?

I've been trying to get this ST7789 library working with the 240x240 1.3" display on the rpi0w Python lib https://github.com/solinnovay/Python_ST7789 So far I've set all the screen pins to the bcm ...
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1answer
2k views

Rpi4B and Midas 10" 1280 x 800 HDMI Monitor Interface Problem

I have a raspberry pi 4 using the latest Os but I cant get anything to display on my monitor the monitor I am using is MCT101HDMI-A I have tried another monitor and it display works so I know nothing ...
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2answers
1k views

How to determine the power state of the connected monitor

Main Question: Can my raspberry pi (powered on it's own) determine if power is being supplied to the monitor (powered by a wall plug)? I'm trying to determine the power state of the display that is ...

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