Datasheet

5.5inch HDMI AMOLED User Manual
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2. create an xorg.conf.d folder
sudo mkdir /etc/X11/xorg.conf.d
3. copy file 40-libinput-conf to the folder which we created
sudo cp /usr/share/X11/xorg.conf.d/40-libinput.conf /etc/X11/xorg.conf.d/
4. Append a statement to touchscreen part of the file as below:
sudo nano /etc/X11/xorg.conf.d/40-libinput.conf
5. save and reboot your Pi
sudo reboot
After completing these steps. The LCD could rotate 90 degree both display and touch.
【Note】
90 degree: Option "CalibrationMatrix" "0 1 0 -1 0 1 0 0 1"