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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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HD44780 Display and wiringPi

I have wired a display to the raspberry pi, which uses an HD44780 controller. The wiring was verified by using this python script: https://www.raspberrypi-spy.co.uk/2012/08/20x4-lcd-module-control-...
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Is it possible to use use a 4x3 monitor

I have a 1280 x 1024 monitor I want to use as display. I have an HDMI to DVI adapter. What must I configure to make it work?
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Cheapest way to attach a display to a Pi Zero W

As per my previous question, I am having great difficulty with a headless setup, so have decided to add a display. I possibly could use my HDMI input TV, but I don't think that my partner would be ...
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Distro which is preconfigured to support XPT2046 display

I am totally stymied on headless setup of a Raspberry Pi Zero W. I have followed numerous guides, with no success and have decided to resort to setup with a display. I have an XPT2046 Resistive ...
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1answer
35 views

Does 'xdotool' only work on OS with gui?

I have installed xdotool on my raspbian stretch with desktop and on there, everything works fine. But I also tried to install xdotool on raspbian stretch lite and on lite I always encounter the ...
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Differences in DPI video between Raspberry Pi 3 B and 3 B+

I have two identical setups with 5" TFT displays connected to Raspberry DPI hats. The SD card images are identical. The only difference is one is using a model 3B and the other a model 3B+. I have the ...
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32 views

How to change the SPI clock speed in Raspberry pi zero w

Please tell me how to change the SPI clock speed of Raspberry Pi Zero W. Is there any code or settings that i have to change to get my display work. I'm using a ST7735 tft display module (resolution ...
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Pi-Zero can't boot past the user login screen - “Perpetual Login”

I have a pi-zero which I was most recently trying to install OpenSSL-1.0.2r on that wouldn't start up. I fixed the issue already by swapping out the SD card but I'm still not sure why the problem came ...
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Raspberry Pi 3b+ error when display shows BLACK colour

I have a RPi 3b+, connected it via HDMI to several different TVs and a monitor via a HDMI to VGA adapter (one at home, one at work ect). While using the adapter, after some hours the picture turned ...
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30 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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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). ...
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Can I connect two Raspberry Pis to one 5" Display via an HDMI switch?

I have two Raspberry Pis running very different systems. I want to build an enclosure so that I can use a single 5" display (Amazon link) for both Pis. The setup I'm envisioning would rely on an ...
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Connect fans and display to rpi 3b+

I have a rpi 3b+. With it I bought a 3.5 inch display and a case with dual fans. But the pins for the fans (5v and ground) are the same with the display. How can I have them both connected to my ...
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How to get the i2c ground signal to pass into the rasberry pi

I want to build a circuit, that is a Raspberry Pi Zero W, powering 8 Adafruit Alphanumeric displays (or even more). The max, theoretical current draw from an Adafruit Alphanumeric is 280mA. ...
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1answer
124 views

OpenGL desktop driver

I have RPi3 with 7" touchscreen display connected, Raspbian Stretch installed. I would like to use OpenGL desktop driver. I run "raspi-config" > Advanced Options > GL Driver and select the driver. ...
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How do I find which pins my TFT display is using?

I have a TFT Touch Screen Display from Tontec that I'm using for a project. According to the product description the display only uses 8 pins. However, the connector cable takes up 26 pins worth of ...
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1answer
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Scanning a QR code using a raspberry pi zero or a Pi3 via a command line script

I need to scan a QR code via the command line when a script is run. My current setup is an epaper display with integrated 4 buttons. So far I have each button programmed to run a script to change ...
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Wrong X and Y touchscreen axis after screen rotation on Raspberry Pi 3B+ and Raspberry Pi zero w

I can successful rotate the screen with display_rotate=1 (and display_rotate=0 to return back to landscape mode). But, I cannot get the X and Y axis to work correctly after the rotation. How can I ...
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How do I use my Samsung S7 as a display for my Raspberry Pi 3 B without WiFi?

The title explains my question. I need to use my S7 as a display for my Pi without having to use wifi, internet or data. My phone is rooted and is on Android 8.0. Any help would be great!
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1answer
34 views

Display most recent image in folder on monitor

I currently have a receiver system that downlinks real-time images of earth from a weather satellite to a Raspberry Pi, where it then stores them as jpgs. What I am looking to do is automatically ...
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1answer
68 views

Feh in startup script only displaying images on reboot, not startup?

I have a Python script running on a Raspberry Pi Zero W that calls the image program feh in order to loop through some directories and display the enclosed images. The script is supposed to run on ...
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No video on SV-3 instrument viewer

When I set the Pi (Zero) up with the required 640x480 60Hz mode in config.txt the SV-3 reports no signal. But if I plug a VGA Acer monitor in to the Pi and then unplug it, plugging in the SV-3 works! ...
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I2C Detect shows that Rasberry Pi keeps assigning the same address to 2 devices

I'm trying to hook up 2 Adafruit Quad Alphanumeric displays to my Rasberry Pi 3 B+. From what I understand, all I need to do is hookup the displays in series to the SDA SCL outs, and the I2C chip is ...
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raspberry pi display reverse color issue

my problem with the Raspberry Pi Official 7" Display: In this page I found this: My display fades out to weird patterns when I shutdown/reboot my Pi. Don't panic! This is perfectly normal. ...
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When powering up my raspberry i dont get a screen

When you plug in power cabel and hdmi with no SDcard will it promt on screen? Or do i need an OS to even get it to promt? Just got mine and i cant get it to promt on my screen.
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Pygame initalisation for TFT on /dev/fb1 only succeeds as root

I connected a 320x240 TFT to my Raspberry Pi A+ running Raspbian stretch via SPI and set it up as fbtft_device. It shows up in /dev/fb1 and I can write images to it via pygame. I initialize it like ...
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Raspberry pi 3B+ RCA noisy video output

I am working on a project in which I would like to connect my RPI to an old CRT TV, For this, I am using a 3.5mm to RCA composite cable. But when I connect my raspberry pi and TV the output on so ...
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1answer
35 views

where to buy the raspberry pi 7" touchscreen display board separately? [closed]

My raspberry pi 7" touchscreen display board black plastic connector (BROWN CONNECTION ABOVE RPI DISPLAY LETTERING) that holds the ribbon to the raspberry pi broke and I am looking for a replacement ...
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How to choose a suitable display for pi 3 B+?

I'm currently looking for a display 5 inches or less for my PI, but there are a lot of information and since I'm quite new to the world of raspberry I'm looking for some help and guidance on where ...
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1answer
34 views

Raspberry pi and HP f24 monitor problem

Lady and Gents, i have HP 24f monitor. I connect RPi using HDMI. But it does not show continuesly. From time to time it only appears for 1 second and then disapear. Some times very often, then ...
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Ripped off display connector, raspberry not working anymore?

i am using a Raspi 3b v1.2. I ripped parts of my display connector off by accident and then removed the whole thing with pliers, because i will never use it anyways. Now my raspberry won't boot. Is a ...
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How to do I reenable display sleep?

I recently installed a Hyperpixel touchscreen on my Raspberry Pi 3, but I don't want to leave the screen on 24/7 to avoid damage and because an always-on display doesn't fit my use case. Before I put ...
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Pi freezes when setting defaults for large screens, broken pipe message

I ssh into my Pi to run on my laptop with RealVNC. I have a 4K display so everything is very small, almost unreadable. I can expand the window but this makes things blurry and it's annoying to have to ...
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Raspberry Pi 3.5 Inch Display Works on Pi 2 B but not 3 B+

The exact screen is this one. http://www.neosecsolutions.com//products.php?28 On a Raspberry Pi 2 B it boots to raspbian. On the 3 B+ it gives a white screen, The Raspberry Pi 2 B has a white screen ...
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Basic 2, 8, or 16 color, wired display

Wondering what the most basic display is that you can get that works with the machine. I see stuff like this but everything seems to be full color. Wondering if that's just how it is or if there are ...
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74 views

How do I properly attach this 3.2 inch LCD to a raspberry pi zero w

I purchased a 3.2 inch LCD screen from souq.com as that's pelretty much all I have to get a display for the raspberry pi zero w. The issue is, when I attach the board to the pi, all I get is a white ...
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Running MagicMirror via HDMI but controlling it via extended virtual desktop

Total linux noob here and at this point without some of the required HW to actually try this out but; I'm meaning to use my raspberry pi 3b (raspbian stretch) as somewhat of a home automation center ...
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Turning off lxpanel on raspberry pi says “Can't connect to display”

Basically i want to know if i can kill lxpanel on raspberry pi zero to reduce ram usage. (i access it via ssh, not the display) or if it has something required by os. I can't shut it via lxpanelctl ...
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1answer
147 views

Is it possible to power a 3b+ and the display with the poe hat?

For a project I would like to power the 3b+ and the official 7” touch display using the official POE hat. I figured that I could connect the display board to the pi via the jumper wires to 5v and GND ...
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1answer
129 views

What is the pixel format for Raspberry Pi framebuffer

Good afternoon, I'm trying to programmatically display an image to a 3.5 inch TFT display mounted on /dev/fb1 using the following code: Using trial and error I determined the pixel width to be 16 ...
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432 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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1answer
157 views

Setting official touchscreen display boot-time brightness

I've got an official display, and having found other questions about setting the brightness I know I can change the brightness, and make a script that will run on boot, but that means the screen will ...
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53 views

Is there a limit on Raspberry PI's display size?

I have been using Raspberry PI 2 and 3 for the last year and a half with no problem. However, over time I have noticed that different sizes of display connected to the PI effected how my software ran. ...
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1answer
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How to get 3.5PiTFT and 2.8PiTFT to work on Raspbian Jessie 8?

Whenever I download Raspbian Jessie 8 and install it, it automatically works with 7inch display and a full up monitor through ribbon cable and HDMI cable respectively. However, when I plug in the 3....
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1answer
183 views

Automatic startup browser

I have a script that starts iceweasel with a certain webpage if iceweasel is not already running. It should start iceweasel on the local screen, in other words the screen plugged directly into the ...
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1answer
182 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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1answer
162 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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How can I power off the RaspBerry Touch Display in console?

I am using a RaspBerry Pi 3, which does not have X enabled. How do I turn off the display? In x86 PC, tools like vbetool would do it. But it does not seem available.
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175 views

USB RS232 turn on/off beamer

I'm streaming a video to a beamer. But I want it too turn it off after office hours. I found /opt/vc/bin/tvservice -o and /opt/vc/bin/tvservice -p to turn off the screen. But that does not turn off ...
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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 ...