Rotate & Calibrate Touch Monitor in Manjaro Linux| Gechic

How to Rotate Touch Screen and Install Touch Calibration Program in Manjaro Linux

2022/05/20 ｜By G Editor

As a free and open source operating system, Linux is not only efficient and stable, but also highly customisable. In recent year, Linux has been widely applied in the fields of servers, decentralized computing and the Internet of Things.

While most of Linux versions support plug-and-play functionality for USB external touch monitor, manually installation is still required for vertical touch operation and touch calibration. Due to the increasing popularity of Linux application, we hereinafter show you how to set up vertical display, vertical touch screen settings, and install the touch calibration software in Manjaro Linux.

A. How to Rotate Monitor Display in Manjaro

Display application is already included in xfce Desktop of Manjaro Linux, allowing you to set up the display resolution and direction.

① Enable Display Aplication

Click → click《 All Applications》

Click 《 Display 》

② Set up Rotation

Click Rotation menu：choose Right or Left to rotate the display 90° or 270°→click 《Apply》

Click 《Keep this configuration》for confirmation

③ Display is portrait mode now.

B. How to Set Up Touch Screen Rotation

After the display became portrait mode, you may find that the touch response position is different from the actual finger touch location. This is because the initial position of touch panel is still set to landscape. You shall set the initial TransformationMatrix value of touch screen to vertical.

① Find 40-libinput file

In Terminal, key in
cd /usr/share/X11/xorg.conf.d

Key in ls to list all the files in the folder

② Edit 40-libinput file

Key in sudo nano 40-libinput.conf

Find the InputClass section of 《 touchscreen 》 , and key in
Option "TransformationMatrix" "0 1 0 -1 0 1 0 0 1"

write 40-libinput file-transfomrationmatrix

List of TransformationMatrix for M505T/T1

90° = Option "TransformationMatrix" "0 1 0 -1 0 1 0 0 1"
180° = Option "TransformationMatrix" "-1 0 1 0 -1 1 0 0 1"
270° = Option "TransformationMatrix" "0 -1 1 1 0 0 0 0 1"
Remark: The XY position of different touch screen's start point may be various, so the transformation matrix values of 90° and 270° may be the opposite. For models other than M505T, please try to adjust it yourself!

③ Reboot

Right click the mouse→select 《 log out》 → select 《 Restart》

After rebooting, the touch respond on the right position.

C. Install xinput_calibrator Program

There is xinput_calibrator package in AUR database, but we recommand you to connect github to install xinput_calibrator in Manjaro Linux. It seems easier to install via this path.