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Questions tagged [touchscreen]

Use this tag for questions about touchscreen compatibility, and how to use compatible touchscreens with the Raspberry Pi.

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Touch screen functionality not working on raspberry pi zero w and 5 inch lcd screen

I have a raspberry pi zero w and a 5 inch lcd touch screen with hdmi. I have the raspberry pi connected to the screen by HDMI. I am running the latest raspian OS on it. It boots up and starts just ...
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17 views

Raspberry Pi Video Assist for Analogue Film Camera

I just purchased a 16mm film camera (Bolex H16 SBM) and wanted to create a video assist for it. To see the image and framing one must look through the viewfinder which limits how i can shoot and also ...
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19 views

RPI File Browser for Touchscreen

I'm building a Webinterface for the RPi with a 7" Touchscreen. I'm running Raspbian Lite with xorg and chromium-browser. If I now wanna upload a file to the webinterface (by a html input), then there ...
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19 views

Disabling multitouch?

I have Pi version 3 (Raspbian installed) and touchscreen Waveshare WS170120. I have a problem with it. When I touch the screen with two (or more) fingers simultaneously, touchscreen freezes and touch ...
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40 views

KeDei 3.5" TFT v6.3 with octopi on raspberry pi 3B+

I have bought KeDei 3.5" TFT screen from Banggood. It works well on stretch image with the drivers downloaded from KeDei Website But, I am unable to get the display working with octopi TouchUI. After ...
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35 views

Inverting Touch input permanently

I am trying to replace an XUbuntu mchine with a raspberry pi set up as a Kiosk. I already had an ELO touch screen, whcih worked fine. I have read through all the posts on inverting the display for ...
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30 views

Outdoor LED screen with touch control

I'm a complete beginner in the rasp world, but i'm trying to evolve. Well, I work in a company that makes outdoor led screens, and most of the cases I use a raspberry with a videolooper, and for most ...
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19 views

my 3.5" touch screen inverts the input of the touch

when ever i touch the top right of the screen and move to the bottom right the mouse moves from the top left to the top right i've already tried "display_rotate=2" and "lcd_rotate=2" but nothing ...
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1answer
72 views

Stream Deck Using PI 2

I have a RPi2 1gb. I've recently got a touch screen for it and have decided that I actually should use it for what it was intended for. Programming! So my adventure starts here. I want to make a ...
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32 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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24 views

RPi3 Touchscreen white fade reboot

I have an RPi3 with the 7in touchscreen attached. Sometimes when I boot up, it runs through the startup procedure, then at some point (it varies, has happened right near the beginning after the ...
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1answer
65 views

Official touchscreen questions

I'm a French web developer so forgive my Englush I'm currently working on yet another in-car embedded Raspberry Pi project. I plan to build the software as a Chromium kiosk web app, served by a Node....
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18 views

Is it possible to use half the screen as touch screen and the other half as a waveform display pane?

I am using waveshare 3.5 inch RPi LCD (A). Is it possible to use it as just a display for waveforms and half the screen of it responsive to the touch?
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52 views

Support for touch display on raspberry pi 3B+

I have an Innolux 5-inch LCD touch display that I got with android things starter kit(NXP Pico i.MX7D) The board is not functional anymore but I was wondering if I could use the display unit with a ...
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33 views

Physically make screen smaller (overscan?) While maintaining touch screen calibration

I am having trouble finding a way to make the 'active' screen size smaller. I have a 7" display and I have a 6" gap in which I want the display to be seen through (the screen will sit behind this ...
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1answer
54 views

Change GPIO pins for official Raspberry Pi 7" touchscreen

I need to use different GPIO pins with the Raspberry Pi official 7" touchscreen. I'm already using pins 3, 4, 5 and 6 with a hat, and it would be a pain to change them. I've looked through several ...
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1answer
135 views

Touchscreen GUI with control loop

I'd like to create a fullscreen-GUI on my Pi's 7"-touchscreen and I think this would be pretty easy to accomplish if I just wanna have some GUI that let's me click some buttons to control some GPIO-...
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1answer
71 views

Is it okay to power the Pi Touchscreen by plugging into the Pi?

I have the official raspberry Pi 7 inch touch screen, and I have mounted to it a Pi 2. Lately I have been using it and I have been plugging the power into the Pi itself. I however recently remember ...
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20 views

Java AWT full screen window / touch screen: mouse events “fall through”

I'm having a Scala (Java) app open a javax.swing.JFrame and put it to full screen; the physical display is a 3.5" touch screen on the GPIO. I just noticed that when I click on parts of my UI where ...
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2answers
40 views

PiScreen 3.5" TFT only shows white

I am attempting to set up a Zynthian Live Sampler (https://www.zynthian.org) which uses the Ozzmaker PiScreen 3.5" (http://ozzmaker.com/product/piscreen-3-5-tft-with-touch-for-the-raspberry-pi/) as it'...
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28 views

Relay for controlling backlight of touchscreen not reacting after a while

I connected my rpi3 to a 10" touchscreen. I connected the backlight of the touchscreen to a relay which I'm controlling via the GPIO pins. This is working fine for the first couple of minutes. But ...
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37 views

Powering a 7 inch touchscreen for the Raspberry Pi 3

I ordered a 7 inch hdmi touchscreen for the Raspberry Pi 3 on ebay and started developing my Python openCV application. So my setup is a Raspberry Pi 3 + webcam + 7 inch touchscreen powered via usb ...
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59 views

How to fix adafruit 7" display resolution problem on PI3?

I recently bought adafruit 7" display to be used with my PI3 to see if it will work. Well, it sort of works. The screen comes up everything is displayed but the resolution is screwed up. I have tried ...
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113 views

Raspberry Pi goes black on launching kivy application

After installing kivy on my raspberry pi model 3 b+ i tried to launch a simple kivy application. When launched the application just goes black instead of showing the buttons. import kivy from kivy....
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1answer
288 views

Raspbian Stretch Lite with Touchscreen - Chromium “Couldn't initialize SDL: No available video device”

I have a Raspberry Pi 3 B+, with the RPi 7-inch touchscreen hooked up. I installed Raspbian Stretch Lite on a 16GB SD card. I have booted the Raspberry Pi, changed my password, connected to Wifi, and ...
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636 views

Slow Refresh Rate on WaveShare 3.5" LCD (B) on RPi 3 B+

I've flashed StickyFingers-Kali-Pi-armhf-180607 to my Raspberry Pi 3 B+ with Waveshare 3.5" LCD (B). I update and configure the unit for my specific screen using the guide's instructions, entering the ...
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90 views

How could I draw a persistent overlay on the Official Touch Screen?

I have the Official 7" Screen connected to a Pi 3B V1.2. I want to create an overlay to be displayed on the screen at all times (regardless of whether I'm in a desktop environment like X, a CLI, etc.)....
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31 views

Large title bar buttons?

On the latest release of Raspbian, there's a new feature that allows you to change the UI settings to make it suitable for Large, Medium and Small displays. The setting for Large displays (among other ...
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2answers
286 views

Upside down screen on Pi with Kumantech 3.5"

On a pi B with raspbian-stretch, I have tried every tip I could find to get the touch screen to rotate 180 degrees: commands in config.txt, new drivers, using ./LCD-show 180, and more. Nothing works ...
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107 views

Problem with touchscreen Waveshare

I purchased a 5inch touchscreen WaveShark. Screen model I connected it to the board Raspberry Pi3 model B (OS Android Things) and it immediately displayed the contents of the program. After that, I ...
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1answer
101 views

My Raspberry Pi 3 B won't work with the touchscreen

So i've got a KeDei 3.5" touch screen Version 6.3 and i installed an image of Kali with the driver that's given of KeDei's website (http://kedei.net/raspberry/raspberry.html) but it hasn't been ...
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88 views

Pi3 + Waveshare touchscreen not work on start

i have a waveshare 7inch revices with rev.2.1. On the start i cant use the touchscreen. The touchscreen works only with the following steps: after the start unplug and plug the usb. What can i do ?
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218 views

Touchscreen programing

I have to do a project for school, the project involves raspberry Pi and its touchscreen. I'm new to Pi but I'm not new to programming by any means. My question is if i want to use the touchscreen to ...
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1answer
156 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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1answer
64 views

What to look for in a touchscreen for RPi?

I would like to build a project on RPi with touchscreen, and wonder what to look for beyond the official (rather expensive) ones. How can I tell whether a screen will work or not? What kind of ...
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343 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
131 views

PiTFT 3,5" Inverted X & Y

So for the last 3 weeks I have been trying to get this touchscreen(3,5" Resistive) to work properly, but I cannot, for the life of me, figure it out! I have made a very simple SDL 1.2 program that ...
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77 views

Raspberry 3,5 inch LCD with reverse colors

I just want you check if you got the same error, or if maybe, the screen arrived broken. I'm using a kedei 3.5 inch SPI TFTLCD screen on a rapsberry pi 3. It works, but all colors seems to be wrong ...
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1answer
230 views

Raspberry Pi 3 Model B- 3M Touch Systems

I connected yesterday a Raspberry Pi 3 Model B at a 3M touch Systems touchscreen. For installing I followed this tutorial that I found here: Inverted GPIO Touchscreen (Using 99-calibration.conf) What ...
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1answer
110 views

1020x1080 Touchscreen driver

I want to install the LCD-show driver to my raspberry Pi. But the touchscreen I have to use has a 1920 x 1080 resolution. I havent found a way to get the driver for this resolution. Is there somekind ...
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170 views

Can't get drivers to work on RPi3 with Elo Touchsystems ET1919L monitor

Trying to get an RPi3 (latest raspbian stretch) to work with an Elo Touchsystems ET1919L monitor. Tried all the arm32 drivers from the Elo site and the touch won't work. It shows up in lsusb as "ID ...
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39 views

Stuck at colorful boot screen AFTER installing software to run an LCD 3.5" GPIO screen on my pi3

the charger I am using is for an Amazon Alexa and it outputs 5.25V; there is enough power to power the pi, multiple peripherals, ethernet, HDMI, and the screen. BUT- when I install the software to ...
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1k views

Raspberry pi 3 b+ and 7" touchscreen over poe

I have an issue, i want to power my pi and 7" touchscreen over poe but the raspberry pi poe hat supplies only 2.5 amp. 7" touchscreen requires 2.5 amp and rpi 3 b+ also requires 2.5 amp so i am in ...
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1answer
380 views

2018 Touchscreen Calibration

This issue has been mentioned before, but with Debian stretch it has changed. I have a 15inch touchscreen that will not calibrate with the usual x-input that debain jesse had. I have tried to run the ...
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558 views

On-screen keyboard with app integration

I'm aware of matchbox-keyboard, but I'm looking for a more Android or iOS kind of keyboard solution. When selecting a text input, of type alpha or numeric, I would like the appropriate keyboard, text ...
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1answer
764 views

Touchscreen Calibration (xinput_calibrator cannot find device)

I followed these calibration instructions from the manufacturer. I have attempted to calibrate from the command line usr@hostname:~ $ echo $DISPLAY :0.0 usr@hostname:~ $ sudo DISPLAY=:0.0 ...
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53 views

10" Touchscreen: touch effect and image is mirrored

I set up a complete new instance of an raspberry pi 3B with stretch. Everything works well but the touch effect and the image are "mirrored". That means which i touch the screen at the top right ...
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203 views

pi2 kivy Image display issue for multiple images

Raspberry pi2 and 7" LCD TouchSCreen is my primary setup. I'm having HDMI display as secondary display. Using Kivy python code to dispay number of images(varies from 100-300) one by one with some ...
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1answer
376 views

Steps for troubleshooting 7 inch touch display issues

My 7 inch HDMI touch ( HDMI display -B, 800 x 480) was perfectly working with pi 3 running Rasbian, but today it is showing very strange behavior. Screen flickers, and now it looks display would not ...
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253 views

eGalax Touchscreen no touch response

I seem to have a peculiar problem trying to work with a chinese 9 inch display with eGalax USB touch controller on a Rpi with raspbian. I did a 'lsusb' and the eGalax is listed (in fact it is listed ...