IR Overlay - pulling hair out !

[emailuser]

Hi everyone … i have built my MM frame and am using a old 32"LCD TV , sitting on top i have a 32" IR Touch overlay … but the overlay responds to touch in landscape mode - i have a pi4 and have rotated the TV screen using DISPLAY=:0 xrandr --output HDMI-1 --rotate left , but despite looking at loads of forums / websites nothing seems to work to make the touch overlay rotate as well … my overlay is Bus 001 Device 003: ID 1ff7:0013 CVT Electronics.Co.,Ltd CVTouch Screen (HID)

Any help greatly appreciated !!!

[sdetweil]

@emailuser well, here is a concise description of how to do it with a pi screen and overlay…
https://www.circuitbasics.com/raspberry-pi-touchscreen-calibration-screen-rotation/
two different configs…

[emailuser]

@emailuser said in IR Overlay - pulling hair out !:

DISPLAY=:0 xrandr --output HDMI-1 --rotate left

Thanks Sam … but those instructions are for a touchscreen – i have an IR USB overlay which enables touch on the screen ,
as an example on the instruction
Enter sudo nano /etc/modules at the command prompt to edit the file. Go to the line for the ads7846_device parameters and move the cursor to the right to find it: - i dont have that in that file

[fordi]

I’m having the same issues, the touch overlay works perfectly in landscape mode but my mirror is designed to be in portrait mode.
If i find a solution i will post on here. I have contacted manufacturers to see if they can help also.

[Snille]

Hi, I had the same issue when I built my mirror… Here is how I solved it. Made a .sh script with all the information: :)

#!/bin/bash

# Before I just tested with the xinput command directly in the autostart file, but that did not work. So now instead I just created a script called xin.sh.
# nano ~/xin.sh
# Then added
# DISPLAY=:0.0 xinput --set-prop "Multi touch Multi touch overlay device" "Coordinate Transformation Matrix" 0 1 0 -1 0 1 0 0 1
# There should actually be 3 spaces between “Multi touch” and “Multi touch overlay device”. For some reason the board removes the extra spaces here.
#
# You can actually find the “name” of the device with this command form a console: DISPLAY=:0.0 xinput list
# Shows something like this:
#
# Virtual core pointer id=2 [master pointer (3)]
#   Virtual core XTEST pointer id=4 [slave pointer (2)]
#   Multi touch Multi touch overlay device id=6 [slave pointer (2)]
# Virtual core keyboard id=3 [master keyboard (2)]
# Virtual core XTEST keyboard id=5 [slave keyboard (3)]
#
# Depending on what you have connected to your RPi. 🙂
# 
# So, after creating the xin.sh I added that to the autostart file for LXDE:
# Like this:
# nano ~/.config/lxsession/LXDE-pi/autostart
# Added at the end of the file.
# @/home/pi/xin.sh
# Restarted and it works.
#
DISPLAY=:0.0 xinput --set-prop "Multi touch   Multi touch overlay device" "Coordinate Transformation Matrix" 0 1 0 -1 0 1 0 0 1

Maybe you guys can use it some how? :)