activate LCD interface on openwb 1.9

[courage2000]

1. Disable the mouse cursor on the external touch LCD

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sudo sed -i 's/#xserver-command=X/xserver-command=X -nocursor/g' /etc/lightdm/lightdm.conf

2. Prepare rPi kiosk mode.

Install chromium-browser and screensaver

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sudo apt install -y chromium-browser xscreensaver
sudo reboot

2.1 Enable display power management

Edit the autostart file

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sudo nano /etc/xdg/lxsession/LXDE-pi/autostart

Add this to the end of the file:

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@xset dpms

2.1 We need to configure xscreensaver

We need to configure xscreensaver in otder to close the LCD after a minute, not only blanking (LCD is still running), in order to preserve the life of the LCD.

Option 1
The easyest way to doit is to replace the entire content of the file ~/.xscreensaver

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sudo nano ~/.xscreensaver

Delete all the content and paste the content of this file (attached).

xscreensaver.txt

(8.57 KiB) 51-mal heruntergeladen

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sudo reboot

Option 2 - via VNC or HDMI diplay.

IF you use VNC, you will have a resolution problem with setting Xscrensaver
Add this to your /boot/config.txt at the end

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sudo nano /boot/config.txt

Save with Ctrl+x

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#vnc resolution high for Xscreensaver setup
framebuffer_width=1900
framebuffer_height=1080

** Don't forget to comment/remove those lines after you set up the xscreensaver and reboot.[/colour]

In the linux GUI, go to Start Button - Preferences - Xscreensaver.
Make the same settings as in the attached below pictures.

In Open WB settings, you can activate the LCD and display sleep.

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http://openwb.local/openWB/web/settings/misc.php

3. Open the chromium browser with a page at the startup

Create chromium_start.sh in /home/pi/

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sudo nano /home/pi/chromium_start.sh

Paste this code:

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#!/bin/bash
#sleep 50 seconds, to wait for openWB to start

sleep 50
chromium-browser --noerrdialogs --incognito --disable-pinch --overscroll-history-navigation=0 --kiosk http://localhost/openWB/web/display.php

Make the script executable

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sudo chmod +x /home/pi/chromium_start.sh

4. Activate load on boot for this script

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sudo nano /etc/xdg/lxsession/LXDE-pi/autostart

add this line:

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@/home/pi/chromium_start.sh

Ctrl+x to save

5. Reboot

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sudo reboot

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If you want/need to enable disable kiosk mode:

Disable Kiosk mode

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sudo sed -i 's/@\/home\/pi\/chromium_start.sh/#@\/home\/pi\/chromium_start.sh/g' /etc/xdg/lxsession/LXDE-pi/autostart
sudo reboot

Enable kiosk mode

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sudo sed -i 's/#@\/home\/pi\/chromium_start.sh/@\/home\/pi\/chromium_start.sh/g' /etc/xdg/lxsession/LXDE-pi/autostart
sudo reboot