Instructions

Published: 16.08.2019 Copyright by Joy-IT 10
3.2“ / 3.5“ Touch-Display
In order to be able to output the image signal simultaneously on the TFT display and on the HDMI output,
addional steps must be carried out. The rst step is to compile and install the Framebuer-Copy program
using the following commands.
For the program to start when boong up the Raspberry Pi, this must be in the le
"/Etc/rc.local" will be added.
Add here before statement "exit 0" a new line with the following content:
Now, in the "/boot/cong.txt" following text block under the previously added sengs, starng on the
following page, must be added.
In this, the resoluon, which is output from HDMI and Display, can be adjusted by commenng out the
respecve triple block of "hmdi_group", "hdmi_mode" and "hdmi_cvt":
(In the following example, the resoluon is 800x600 default)
6. GLEICHZEITIGE VERWENDUNG VON LCD UND HDMI
cd /tmp
sudo apt-get install -y cmake
git clone https://github.com/tasanakorn/rpi-fbcp
mkdir -p rpi-fbcp/build
cd rpi-fbcp/build
cmake ..
make
sudo install fbcp /usr/local/bin/fbcp
sudo nano /etc/rc.local
fbcp &