Questions tagged [gui]

The Graphical User Interface, or GUI, allows the user to interact with images rather than text.

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How to solve blank screen issue on Raspberry Pi GUI?

It's my third day with my Raspberry Pi. I do know Linux. I am all good with using SSH with my Raspberry Pi but I do need a GUI sometimes. I tried installing vncserver, tightvncserver and now xrdp but ...
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1answer
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Kivy on Raspberry Pi: Mouse cursor not showing

I'm running kivy on a Raspberry Pi. I accepted that apparently you can't get around the fullscreen, but I can't get the cursor to show either. I tried by adding touchring = show_cursor=true to the [...
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2answers
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Buster GUI Icons and text are too small

I have a Pi4B-4 with a 13.3 diag HDMI screen. The fonts are too small even when preffed to "large". True of console text size too. Kindly, how do I resize them larger? Obvious noob question, ...
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1answer
5k views

The size of the font, icon, and everything else in GUI of RPi

I'm a noob here, and I'm struggling before even starting to code anything. My RPi's gui shows everything really tiny. Is there any way I can make things bigger, including the font size, icon size, and ...
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Running GUI within docker despite error

I am running ROS within docker and I try to use a GUI ROS node.(turtlesime) I succeeded (I could see the turtle) but in the terminal where I run it I got the errors: MESA-LOADER: failed to retrieve ...
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1answer
39 views

Autostart, detect directory and open in standard GUI

I want to detect the existence of a (directory on a) USB drive (/media/pi/Music), wait for it to appear, then open it in the GUI. Using xdg-open /media/pi/Music in ~/.config/lxsession/LXDE-pi/...
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24 views

Lost ability to authenticate software installation etc from GUI after deleting pi user. Can still install command line

In the interest of increasing security of my pi I followed the Secure Raspberry Pi Guide After doing so and deleting old pi user and rebooting I now cannot authenticate sudo from the GUI. For new ...
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1answer
40 views

File Manager issue after recent update

I recently updated my raspi which is running debian buster (version 10). After the update/upgrade cycle - which took a while since I have not updated my device in quite some time - I noticed an issue ...
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1answer
96 views

I am searching for a command for the terminal that will close the GUI and open the CLI

I am searching for a command for the terminal that will close the GUI and open the CLI. I am aware of the key shortcut to get there but am trying to create a shortcut that will run a program from CLI
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1answer
30 views

Kiosk GUI not appear after boot

I wrote a python GTK Kiosk program for the Raspberry pi and when I execute it from terminal it works properly. I want to run it automatically after booting and I tried several ways to do that (.bashrc,...
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How to use the turtle graphics package on my Pi 3B

I have a built a car which uses distance sensor to navigate a room. I want to map out the room's diagram based on how the bot car moves. The turtle graphics package in Python translates commands like ...
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1answer
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How to make an MS-DOS style console program?

I want to make a console input/output program on Raspberry Pi. I'm just learning C programming by making some simple guessing games and calculator applications. I want to make an interface that's more ...
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4answers
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Coding a GUI in python and driving stepper motor by user input

I am hoping to use my Raspberry Pi 3 in a senior project for my mechancical engineering program. I want to use the pi to drive a vice like fixture to predetermined positions by connecting a stepper ...
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193 views

Ubuntu 20.04/gnome wifi and bluetooth in Settings

Pi4 4Gb with Ubuntu 20.04 64b (flashed from Raspberry Pi Imager). Added minimal gnome after the install. When I go to Settings: Bluetooth says: "No Bluetooth installed. Plug in a dongle to use ...
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guizero stuck until serial input

I'm a newbie to Raspberry PI and guizero. I'm trying to change texts and set some menus visible using button and I have to print serial data on the screen. My problem is when I change text and hide ...
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4answers
45k views

PyQt5 on a Raspberry Pi

I have a Raspberry Pi 3 with Raspbian installed, along with a 7" touch screen. I'm in the process of creating an application in Python to read several DS18B20 Thermocouples to monitor the temperature ...
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3answers
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Kivy on RPi - how to correct rotated touch screen

I have Raspberry Pi with 3.5 in TFT (resisitive) touchscreen installed, and small application written in Kivy. When I'm on Desktop then mouse and touch work as expected (in particular are not rotated),...
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1answer
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Using GPIO.add_event_detect with kivy

Hello Raspberry Pi people, I am using Kivy v1.11.1 on my Raspberry Pi with Python v3.7.3. The goal is to use a GPIO input to toggle the button state (parallel use of a real button and the touchscreen ...
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Help with choosing a GUI library for RPI developpement

I am currently coding an app for Raspberry Pi, the app is very GUI dependent. During my research i saw online that tktinker is good for small/simple apps. I got really excited for PyQt but found out ...
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Lubuntu-desktop on Raspberry Pi 4 (4gb) 19.10 ARM64

When I flash the arm64 image onto one of my Raspberry Pi 4B (4gb ram) from here (64bit version: https://ubuntu.com/download/raspberry-pi) and then do an install via apt of lubuntu-desktop, it gives me ...
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Visual Studio Community Replacement?

I would like to be able to design user interfaces on my rpi but all the software I have looked at has troubles with running c#, barely counts as a Ide, (if at all) and you can't design user interfaces ...
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1answer
41 views

Is there any better gui for managing network?

I'd like to have some better gui for managing network connections, something similar to nm-connection-editor. But nm-connection-editor is available for NetworkManager and I want more advanced gui for ...
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4answers
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boot up rasbian into gui program, no interaction

I have a project I want to do, and I got an SPI touch screen (tontec 3.5") for it. I want to start up into some sort of GUI application. I only have roughly 950mb left on my micro SD (8gb, install ...
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1answer
294 views

Creating a new user and starting a graphical session causes black desktop

I am using a Raspberry Pi 2 Model B running the latest version of Raspbian Wheezy (Raspbian Wheezy 2015-05-05). I created a new user separate from the default user "pi" and I am unable to create the ...
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2answers
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Virtual on-screen keyboard for raspberry pi touch screen

The following is simple code that accepts a line of text from a user: from tkinter import * from tkinter import ttk root= Tk() entry= ttk.Entry(root, width=30) entry.pack() I am running this ...
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Issue: Glib-Gobject-warning **: cannot register existing type 'GDKDisplayManager'

I've designed a interface with pyqt and python to my raspberry, so there's no problem when I run a basic test to open the camera ( cv2.imshow('test',frame) this is too basic is just to check if my ...
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1answer
2k views

Raspberry Pi: Autostart Program in Full Screen

I put the program leaflet on Autostart by adding @leafpad to ~/.config/lxsession/LXDE-pie/autostart Now it starts after the GUI load is finished. But it is not starting in full screen or with ...
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5answers
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Pi desktop through PuTTY and Xming

I am trying to connect my Pi to my laptop, I have finished installing the OS and through PuTTY and Xming, I am trying to setup the connection but now startlxde command doesn't work. Can someone help ...
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0answers
55 views

GUI Button Highlight [closed]

I'm having an issue with the highlight of the buttons on a GUI that I created with tkinter. When I run the GUI on my windows machine and the cursor is over the button, the button is not highlighted ...
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start RPI on read only with Raspbian

I want to start my RPI in read only mode to get a perfect 24/7use setup.But I need to have a graphical user interface running. For that I tried this guideline to put the SD card in read only mode. But ...
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1answer
825 views

GUI on Raspberry Pi cluster

I was thinking of building a small cluster (due to the small price) but i want to know if i can get a gui (like xfce or lxde) to run o the master/ host or whatever.
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1answer
581 views

Using the GUI, how can I change the label of a USB disk drive?

I plugged in a USB hard drive into a Pi 4, and I wanted to change the label before I started setting it up on the network. I can right-click and try to rename, but it doesn't work, giving me an error ...
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20 views

Need different default keyboard settings for different users

I set up Raspberry Pi 4 workstations with Raspbian Buster for a school library and want to use a different keyboard setting for the root account. Now it seems to me that I can only change the ...
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1answer
488 views

prevent GUI notification for Bluetooth Pairing

Currently, I am trying to control Bluetooth (pairing - connecting - removing ...) with my python code (by accessing to bluetoothctl through pexpect). It actually works fine but I have a problem with ...
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3answers
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Error when attempting to create Python GUI using Tkinter: “no display name and no $DISPLAY environment variable”

Sup, I am simply trying to use Tkinter (a Python GUI creator) to create a GUI on my Raspberry Pi. To start, I only want a GUI to show up on my screen. That's it! The code DOES work on my PC The code ...
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2answers
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RASPBERRY PI Error Python GUI : “no display name and no $DISPLAY environment variable”

Hi guys I want to create a basic GUI with TKinter. This is my code from tkinter import* import tkinter.font win =Tk() win.title("Test") myFont = tkinter.font.Font( family = 'Helvetica', size = 12, ...
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2answers
297 views

Octave is not working in raspbian

I am using Raspberry Pi 4 for one month. I installed octave today by writing sudo apt install octave It installed correctly. But the gui is not working. I can only use it with terminal . But when I ...
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0answers
163 views

ElectronJS on RaspberryPi3B - Gtk-WARNING **: cannot open display:

I am trying to develop an ElectronJS GUI application on the RaspberryPi3B with the standard 7" touchscreen connected. Currently, I have Raspbian Buster Lite and I use SSH to connect to the Pi. I ...
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2answers
5k views

WPA_GUI “the configuration could not be saved”

I'm trying to setup WiFi on my RaspberryPi running Raspbian. WPI_GUI refuses to allow my to save it's configuration as The configuration could not be saved. The update_config=1 configuration option ...
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0answers
374 views

Error when creating Python GUI using Tkinter: “no display name and no $DISPLAY environment variable”

last few days I've been working to create a GUI using Tkinter This morning my code still worked, but now it crashed with said error: Traceback (most recent call last): File "TKtest.py", line 3, in &...
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1answer
431 views

grab_set issue with tkinter toplevel window

I'm having an issue with the grab_set command when opening a toplevel window on my Pi. I'm using a grab_set to disable the screen below the toplevel and releasing it on close of the window. I doesn't ...
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3answers
20k views

Does Arch come with a GUI preinstalled?

I know that, for some people, this may seem like an obvious question, but, as a former user of the desktop version of Arch Linux (which came without GUI preinstalled), I have to ask: does the ...
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1answer
185 views

Video playback on Raspberry Pi 3

I have a raspberry pi 3 connected to one of my TV's HDMI inputs. I've installed VLC, but videos won't play. The image will hang and the audio will continue to play in the background. Regardless of ...
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2answers
67 views

Distros with a keyboard-only gui

I was wondering if a distro exists that's keyboard-only friendly. Not terminal only, just kind of minimalist and doesn't use a mouse.
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867 views

Can I control GPIO Pins when using Android on the Pi 3?

I want to install Android on my Raspberry Pi for implementing a GUI app, which is easy to create using Android Studio. But now I am confused about how to control the GPIO pins on the Pi 3 to turn on ...
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2answers
395 views

Automatic shortcut execution on boot

I want to achieve following: run my GUI (made in Tkinter interface) application automatically as I boot the RPi (i.e. no desktop screen loading). But I want to be able kill the application so I can ...
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0answers
30 views

Disabling auto-login after it was once enabled during build

I am running Ubuntu 16.04.6 LTS ( Mate, built with ubuntu-mate-16.04.2-desktop-armhf-raspberry-pi.img ) When I initially built this, I enabled the auto-login when going through all the initial ...
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112k views

How can I remove the GUI from Raspbian/Debian?

I would like to know how to completely remove X.org and all GUI-related components from Raspbian or soft-float Debian. The most obvious solution would be sudo apt-get purge xorg, but I am afraid that ...
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1answer
429 views

Raspberry pi freezes after 20 minutes of use

using tkinter i have made a GUI in which a video plays continuously in a loop until the ultrasonic sensor detects a person in front of it. when a person is detected it displays a messages"hi..welcome"....
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2answers
1k views

Graphical gui for rasping not working

Tell you what I did, and what I think went wrong. What I did: Setting up Raspberry Pi headless way. Downloaded Raspbian Lite version Used etcher to write image to SD card Added ssh to folder in SD ...

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