Hi folks,
I'm using a T2-OLinuXino-MICRO-e8Gs16M-IND with a LCD-OLINUXINO-4.3"TS rev.B Display and the Armbian_5.92.4_Olinuxino-a20_Debian_buster_next_5.2.21.7z (http://ftp://staging.olimex.com/Allwinner_Images/A20-OLinuXino/1.latest_mainline_images/buster/images/Armbian_5.92.4_Olinuxino-a20_Debian_buster_next_5.2.21.7z) image.
I also installed the Xorg X-server and some X Applications (e.g. xinput-calibrator).
Now I need to to calibrate the touchscreen of the LCD display and therefore start
$ export DISPLAY=:0
$ xinput-calibrator
At the end of the routine the application provides some information which should be placed into /etc/X11/xorg.conf.d/99-calibration.conf.
There is already a 98-screen-calibration.conf file in that directory, which is created during each system start by /usr/bin/olinuxino_ts.sh and targeting the same input device.
If I now replace the current content of 98-screen-calibration.conf
Section "InputClass"
Identifier "calibration"
MatchProduct "1c25000.rtp"
Option "TransformationMatrix" "1.08 0.0 -0.04 0.0 1.14 -0.10 0.0 0.0 1.0"
EndSectionwith the Information provided by xinput-calibrator
Section "InputClass"
Identifier "calibration"
MatchProduct "1c25000.rtp"
Option "MinX" "65137"
Option "MaxX" "57"
Option "MinY" "-161"
Option "MaxY" "63768"
Option "SwapXY" "0" # unless it was already set to 1
Option "InvertX" "0" # unless it was already set
Option "InvertY" "0" # unless it was already set
EndSectionand restart the X-server, I can't see any difference in the calibration. :(
If I read through the /var/log/Xorg.0.log I find the following entries for the touchscreen:
...
[ 00039.827] (II) config/udev: Adding input device 1c25000.rtp (/dev/input/event4)
[ 00039.827] (**) 1c25000.rtp: Applying InputClass "libinput touchscreen catchall"
[ 00039.827] (**) 1c25000.rtp: Applying InputClass "calibration"
[ 00039.827] (II) Using input driver 'libinput' for '1c25000.rtp'
[ 00039.827] (**) 1c25000.rtp: always reports core events
[ 00039.827] (**) Option "Device" "/dev/input/event4"
[ 00039.827] (**) Option "_source" "server/udev"
[ 00039.833] (II) event4 - 1c25000.rtp: is tagged by udev as: Touchscreen
[ 00039.835] (II) event4 - 1c25000.rtp: device is a touch device
[ 00039.835] (II) event4 - 1c25000.rtp: device removed
[ 00039.864] (**) Option "config_info" "udev:/sys/devices/platform/soc/1c25000.rtp/input/input4/event4"
[ 00039.864] (II) XINPUT: Adding extended input device "1c25000.rtp" (type: TOUCHSCREEN, id 9)
[ 00039.865] (**) Option "AccelerationScheme" "none"
[ 00039.865] (**) 1c25000.rtp: (accel) selected scheme none/0
[ 00039.865] (**) 1c25000.rtp: (accel) acceleration factor: 2.000
[ 00039.865] (**) 1c25000.rtp: (accel) acceleration threshold: 4
[ 00039.871] (II) event4 - 1c25000.rtp: is tagged by udev as: Touchscreen
[ 00039.872] (II) event4 - 1c25000.rtp: device is a touch device
...which seems that the input device is
- added by/with config/udev
- the calibration is applied
- the device is removed
- the device is added by by/with/as XINPUT but no calibration is applied. :o
Is there anything I'm missing out of, or how do I get the touchscreen calibrated?
BTW. Is there any information available on how to transform the output of xinput-calibrator into a TransformationMatrix used by the olinuxino_ts script?
If the following packages are missing, please install them with:
sudo apt install xrandr xinput-calibrator xinput
Then:
export DISPLAY=:0
You must get LCD resolution:
xrandr | grep current:
The output will look like this:
Screen 0: minimum 320 x 200, current 480 x 272, maximum 8192 x 8192
Of course, the values will be different depending on the lcd type that you are using.
From the output above, you take the screen width and screen height, i.e:
screen_width = 480
screen_height = 272
and write them somewhere
Execute the following command:
xinput_calibrator -v
On the screen you will see some crosses, that you must press. Then you will see output like this:
DEBUG: XInputExtension version is 2.3
DEBUG: Skipping virtual master devices and devices without axis valuators.
DEBUG: Skipping device 'Virtual core XTEST pointer' id=4, does not report Absolute events.
DEBUG: Selected device: 1c25000.rtp
DEBUG: Not usbtouchscreen calibrator: Not a usbtouchscreen device
DEBUG: Not evdev calibrator: Evdev: invalid "Evdev Axis Calibration" property format
Calibrating standard Xorg driver "1c25000.rtp"
current calibration values: min_x=0, max_x=65535 and min_y=0, max_y=65535
If these values are estimated wrong, either supply it manually with the --precalib option, or run the 'get_precalib.sh' script to automatically get it (through HAL).
DEBUG: Found that '1c25000.rtp' is a sysfs name.
DEBUG: Adding click 0 (X=67, Y=48)
DEBUG: Adding click 1 (X=408, Y=46)
DEBUG: Adding click 2 (X=76, Y=227)
DEBUG: Adding click 3 (X=413, Y=227)
Теб те интересува това :
DEBUG: Adding click 0 (X=67, Y=48)
DEBUG: Adding click 1 (X=408, Y=46)
DEBUG: Adding click 2 (X=76, Y=227)
DEBUG: Adding click 3 (X=413, Y=227)
* Note: All the values in this post are just example, in your case they will be different.
Then you calculate the transformation matrix:
a = (screen_width * 6 / 8) / (click_3_X - click_0_X)
c = ((screen_width / 8) - (a * click_0_X)) / screen_width
e = (screen_height * 6 / 8) / (click_3_Y - click_0_Y)
f = ((screen_height / 8) - (e * click_0_Y)) / screen_height
Then enter:
xinputAnd find out your TS device name, then copy it, you will need it in the next step.
Execute:
xinput set-prop "YOUR_DEVICE" "libinput Calibration Matrix" "libinput Calibration Matrix" a, 0.0, c, 0.0, e, f, 0.0, 0.0, 1.0
where:
a,c,e,f - you must replace them with values from the calculations above
"YOUR_DEVICE" - this is the name of the TS device that you got from xinput command.
If you are satisfied, you can save the values of the transformation matrix into that .conf file, so no need to execute the command above on each boot.
Quote from: kalata23 on April 01, 2020, 08:57:00 AMIf you are satisfied, you can save the values of the transformation matrix into that .conf file, so no need to execute the command above on each boot.
Hello
Which .conf file is it exactly ?
The values a, c, e and f written in /etc/X11/xorg.conf.d/98-screen-calibration.conf are taken into account after a reconnection to XFCE.
But on a reboot they are replaced by "default" values (I don't know where they come from).
Merci
Quote from: tropek on March 23, 2021, 11:57:42 AMQuote from: kalata23 on April 01, 2020, 08:57:00 AMIf you are satisfied, you can save the values of the transformation matrix into that .conf file, so no need to execute the command above on each boot.
Hello
Which .conf file is it exactly ?
The values a, c, e and f written in /etc/X11/xorg.conf.d/98-screen-calibration.conf are taken into account after a reconnection to XFCE.
But on a reboot they are replaced by "default" values (I don't know where they come from).
Merci
The calibration values are written in
/etc/X11/xorg.conf.d/98-screen-calibration.conf However
olinuxino-ts.service executes
/usr/lib/olinuxino/olinuxino-ts on every boot. This overrides the .conf file after reboot, that's why I can suggest you to change default values in
/usr/lib/olinuxino/olinuxino-ts
Thank you, I will try it.
I'll get back to it soon !
Hello
I forgot to mention that I use an A10 with an updated buster, because I didn't get an answer on the A10 forum ...
In this configuration there is no olinuxino_ts.sh file, nor anything like it.
In which directory should something be found ?
The instructions kalata23 apply only for A10 Olimage images that are downloaded from here:
http://images.olimex.com/release/a10/
What image exactly are you using and where did you download it from (share link of place where you got it)?
Also if you use A10 board, please post in the A10 sub-forum, not in the A20 sub-forum, thanks.
My image comes from the page you indicate
A10-OLinuXino-buster-base-20210318-122357.img.7z
and the card A10 works.
I posted here -> https://www.olimex.com/forum/index.php?topic=8136.0
and Olimex advises me to continue here !
Thanks
I have done everything possible based on the official documents and instructions here... I have calculated the calibration matrix, and when I apply it under the Olimex user in the CLI using xinput set-prop, my touchscreen works perfectly. I made changes to /usr/lib/olinuxino/olinuxino-ts, I have the correct /etc/X11/xorg.conf.d/98-screen-calibration.conf after reboot. But these settings don't work. The touchscreen still have the wrong calibration. To be sure, I performed a new deployment with the OS on the SD card and made changes to /usr/lib/olinuxino/olinuxino-ts from the beginning. The results are exactly the same... correct data in /etc/X11/xorg.conf.d/98-screen-calibration.conf and incorrect calibration (((( To be honest, I do not know what to do.
Hardware: SODIMM 204 PIN EVALUATION BOARD WITH A20-SOM204-1GS16ME16G-MC
LCD: LCD-OLinuXino-7RTS
Software: A20-OLinuXino-bullseye-base-20220413-094751.img
jumper in correct position
It is a bit more convoluted. Check the replies of kalata23 in this thread here:
https://www.olimex.com/forum/index.php?msg=28314
https://www.olimex.com/forum/index.php?msg=31101
Quote from: alex_u-94 on June 30, 2022, 05:11:40 PMI have done everything possible based on the official documents and instructions here... I have calculated the calibration matrix, and when I apply it under the Olimex user in the CLI using xinput set-prop, my touchscreen works perfectly. I made changes to /usr/lib/olinuxino/olinuxino-ts, I have the correct /etc/X11/xorg.conf.d/98-screen-calibration.conf after reboot. But these settings don't work. The touchscreen still have the wrong calibration. To be sure, I performed a new deployment with the OS on the SD card and made changes to /usr/lib/olinuxino/olinuxino-ts from the beginning. The results are exactly the same... correct data in /etc/X11/xorg.conf.d/98-screen-calibration.conf and incorrect calibration (((( To be honest, I do not know what to do.
Hardware: SODIMM 204 PIN EVALUATION BOARD WITH A20-SOM204-1GS16ME16G-MC
LCD: LCD-OLinuXino-7RTS
Software: A20-OLinuXino-bullseye-base-20220413-094751.img
jumper in correct position
Please, copy the content of /usr/lib/olinuxino/olinuxino-ts here.
PS: Please also markup the line(s) that you have changed.
All steps which I did.
Preparation
Fresh new deployment of OS on SD
$ sudo olinuxino-overlay
1. Enabled: som204-lcd-olinuxino-7.dtbo LCD-OLinuXino-7 800x480 panel without TS
2. Enabled: som-i2c2-ar1021.dtbo Microchip AR1021 RTS controller on I2C2 bus
3. Disabled: som204-lcd-olinuxino.dtbo LCD-OLinuXino PnP panel
$ sudo apt install xrandr (no longer available for installation, performed to demonstrate the result)
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
Package xrandr is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source
However the following packages replace it:
x11-xserver-utils
E: Package 'xrandr' has no installation candidate
$ sudo apt install x11-xserver-utils (performed to demonstrate the result)
Reading package lists... Done
Reading state information... Done
xinput-calibrator is already the newest version (0.7.5+git20140201-1+b2).
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
$ sudo apt install xinput
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
The following NEW packages will be installed:
xinput
0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded.
Need to get 50.4 kB of archives.
After this operation, 84.0 kB of additional disk space will be used.
Get:1 http://httpredir.debian.org/debian bullseye/main armhf xinput armhf 1.6.3-1 [50.4 kB]
Fetched 50.4 kB in 0s (117 kB/s)
Selecting previously unselected package xinput.
(Reading database ... 126380 files and directories currently installed.)
Preparing to unpack .../xinput_1.6.3-1_armhf.deb ...
Unpacking xinput (1.6.3-1) ...
Setting up xinput (1.6.3-1) ...
Processing triggers for man-db (2.9.4-2) ...
Сheckout
$ cat /etc/X11/xorg.conf.d/98-screen-calibration.conf
Section "InputClass"
Identifier "calibration"
MatchProduct "1c25000.rtp"
Option "TransformationMatrix" "1.06 0.0 -0.03 0.0 1.11 -0.08 0.0 0.0 1.0"
EndSection
Visual test (touch screen works, calibration has a significant deviation)
(https://i.ibb.co/Dky3yQL/alp-40-000-32.png)
Calibration
$ export DISPLAY=:0
$ xinput_calibrator -v
DEBUG: XInputExtension version is 2.3
DEBUG: Skipping virtual master devices and devices without axis valuators.
DEBUG: Skipping device 'Virtual core XTEST pointer' id=4, does not report Absolute events.
DEBUG: Skipping device 'PixArt Microsoft USB Optical Mouse' id=6, does not report Absolute events.
DEBUG: Skipping device 'Microsoft Wired Keyboard 600 Consumer Control' id=8, does not report Absolute events.
DEBUG: Skipping device 'sunxi-ir' id=10, does not report Absolute events.
DEBUG: Selected device: ar1021 I2C Touchscreen
DEBUG: Not usbtouchscreen calibrator: Not a usbtouchscreen device
DEBUG: Not evdev calibrator: Evdev: invalid "Evdev Axis Calibration" property format
Calibrating standard Xorg driver "ar1021 I2C Touchscreen"
current calibration values: min_x=0, max_x=65535 and min_y=0, max_y=65535
If these values are estimated wrong, either supply it manually with the --precalib option, or run the 'get_precalib.sh' script to automatically get it (through HAL).
DEBUG: Found that 'ar1021 I2C Touchscreen' is a sysfs name.
DEBUG: Adding click 0 (X=106, Y=87)
DEBUG: Adding click 1 (X=685, Y=88)
DEBUG: Adding click 2 (X=106, Y=409)
DEBUG: Adding click 3 (X=687, Y=413)
--> Making the calibration permanent <--
DEBUG: Found that 'ar1021 I2C Touchscreen' is a sysfs name.
copy the snippet below into '/etc/X11/xorg.conf.d/99-calibration.conf' (/usr/share/X11/xorg.conf.d/ in some distro's)
Section "InputClass"
Identifier "calibration"
MatchProduct "ar1021 I2C Touchscreen"
Option "MinX" "765"
Option "MaxX" "64115"
Option "MinY" "4585"
Option "MaxY" "63476"
Option "SwapXY" "0" # unless it was already set to 1
Option "InvertX" "0" # unless it was already set
Option "InvertY" "0" # unless it was already set
EndSection
Preliminary verification of the calculations
$ xinput_calibratot --list
Device "ar1021 I2C Touchscreen" id=12
$ xinput set-prop 12 'Coordinate Transformation Matrix' 1.04 0.0 -0.02 0.0 1.12 -0.08 0.0 0.0 1.0
Visual test
(https://i.ibb.co/DYpfvxL/12-Coordinate-Transformati.png)
Making changes to olinuxino-ts
$ sudo nano /usr/lib/olinuxino/olinuxino-ts
Old parameters for olimex lcd-olinuxino-7
(https://i.ibb.co/xzJhX3D/old-ts.png)
New parameters for olimex lcd-olinuxino-7
(https://i.ibb.co/ZX3g61y/new-ts.png)
Rebooting and checking the results
$ cat /etc/X11/xorg.conf.d/98-screen-calibration.conf (The content of the file corresponds to the specified parameters)
Section "InputClass"
Identifier "calibration"
MatchProduct "1c25000.rtp"
Option "TransformationMatrix" "1.04 0.0 -0.02 0.0 1.12 -0.08 0.0 0.0 1.0"
EndSection
Visual test (touch screen works, calibration has a significant deviation)
(https://i.ibb.co/25thFjG/a20-olinuxino.png)
Thank you for the detailed step list. However, I think you have edited the wrong line in olinuxino-ts script.
From the images, that you applied here, I see that you edit olimex,lcd-olinuxino-7 line in the following section:
else
case $LCD in
"olimex,lcd-olinuxino-4.3")
MATRIX="1.08 0.0 -0.04 0.0 1.14 -0.10 0.0 0.0 1.0"
;;
"olimex,lcd-olinuxino-7")
MATRIX="1.06 0.0 -0.03 0.0 1.11 -0.08 0.0 0.0 1.0"
;;
"olimex,lcd-olinuxino-10")
MATRIX="1.04 0.0 -0.03 0.0 1.09 -0.07 0.0 0.0 1.0"
;;
*)
# The LCD is not supported by this script
exit 0;
esac
PRODUCT="1c25000.rtp"
fi
But this sections is related to CTS displays, not RTS. The correct sections, where you have to change the values for 7" LCD is this:
if [[ $overlays == *"micro-i2c2-ar1021"* ]];
then
case $LCD in
"olimex,lcd-olinuxino-4.3")
MATRIX="1.09 0.0 -0.04 0.0 1.17 -0.09 0.0 0.0 1.0"
;;
"olimex,lcd-olinuxino-7")
MATRIX="1.05 0.0 -0.03 0.0 1.13 -0.08 0.0 0.0 1.0"
;;
"olimex,lcd-olinuxino-10")
MATRIX="1.04 0.0 -0.03 0.0 1.09 -0.07 0.0 0.0 1.0"
;;
*)
# The LCD is not supported by this script
exit 0;
esac
PRODUCT="ar1021 I2C Touchscreen"
Change the values in the correct section, and tell us if this solved your problem.
A few problems...
Firstly, I've already done this and it doesn't work at all because the olimex script to generate "98-screen-calibration.conf" uses the section I edited. If you check my post, I have inserted the contents from the source file "98-screen-calibration.conf", which was generated using an unmodified script. You can also check in the script that different sections for a 7-inch LCD display have different values.
The second problem is "98-screen-calibration.conf", which was generated using a modified script, contains the values that I inserted there....
Modified script
$ cat /usr/lib/olinuxino/olinuxino-ts
#!/bin/bash
# Check is LCD is enabled in the device tree
LCD=$(grep -r "lcd-olinuxino-[147]" /proc/device-tree -a -h | tr -d '\0')
[[ -z $LCD ]] && exit 0
overlays=$(cat /boot/uEnv.txt)
# Select transformation matrix
if [[ $overlays == *"micro-i2c2-ar1021"* ]];
then
case $LCD in
"olimex,lcd-olinuxino-4.3")
MATRIX="1.09 0.0 -0.04 0.0 1.17 -0.09 0.0 0.0 1.0"
;;
"olimex,lcd-olinuxino-7")
MATRIX="1.05 0.0 -0.03 0.0 1.13 -0.08 0.0 0.0 1.0"
;;
"olimex,lcd-olinuxino-10")
MATRIX="1.04 0.0 -0.03 0.0 1.09 -0.07 0.0 0.0 1.0"
;;
*)
# The LCD is not supported by this script
exit 0;
esac
PRODUCT="ar1021 I2C Touchscreen"
else
case $LCD in
"olimex,lcd-olinuxino-4.3")
MATRIX="1.08 0.0 -0.04 0.0 1.14 -0.10 0.0 0.0 1.0"
;;
"olimex,lcd-olinuxino-7")
MATRIX="1.04 0.0 -0.02 0.0 1.12 -0.08 0.0 0.0 1.0"
;;
"olimex,lcd-olinuxino-10")
MATRIX="1.04 0.0 -0.03 0.0 1.09 -0.07 0.0 0.0 1.0"
;;
*)
# The LCD is not supported by this script
exit 0;
esac
PRODUCT="1c25000.rtp"
fi
# Generate configuration file
mkdir -p /etc/X11/xorg.conf.d
tee > /etc/X11/xorg.conf.d/98-screen-calibration.conf << __EOF__
Section "InputClass"
Identifier "calibration"
MatchProduct "$PRODUCT"
Option "TransformationMatrix" "$MATRIX"
EndSection
__EOF__
# педалщина
LCD=$(grep -r "lcd-olinuxino-[147]" /proc/device-tree -a -h | tr -d '\0')
[[ -z $LCD ]] && exit 0
overlays=$(cat /boot/uEnv.txt)
# Select transformation matrix
if [[ $overlays == *"-gt911inv"* ]];
then
/usr/bin/memtool mw -l 0x1C0C010 0x80000000 || :
/usr/bin/memtool mw -l 0x1C0C044 0xF0000006 || :
fi
Generated "98-screen-calibration.conf"
$ cat /etc/X11/xorg.conf.d/98-screen-calibration.conf
Section "InputClass"
Identifier "calibration"
MatchProduct "1c25000.rtp"
Option "TransformationMatrix" "1.04 0.0 -0.02 0.0 1.12 -0.08 0.0 0.0 1.0"
EndSection
If you compare the script and the configuration file, you will find that the transformation matrix is the same.
Do I understand correctly that {MatchProduct "1c25000.rtp"} section should have a different value in the configuration file (98-screen-calibration.conf)?
Checks from the script
Display:
$ grep -r "lcd-olinuxino-[147]" /proc/device-tree -a -h | tr -d '\0'
olimex,lcd-olinuxino-7
Touch:
$ cat /boot/uEnv.txt
#
# Auto-generated on: 2022-04-13 10:12:41.610325
# Generated UUID: 30010994-cd0e-4557-be6d-fb22555be453
#
# Put u-boot environment variables here. Before boot, boot.scr will use these variables:
#
# boot_config - Explicitly specify the boot configuration
# fdtoverlays - List of overlay files
# load_legacy - Don't load FIT image,
# optargs - Optional arguments passed to the kernel
fdtoverlays=/usr/lib/olinuxino-overlays/sun7i-a20/som204-lcd-olinuxino-7.dtbo /usr/lib/olinuxino-overlays/sun7i-a20/som-i2c2-ar1021.dtbo /usr/lib/olinuxino-overlays/sun7i-a20/spi1-spidev.dtbo /usr/lib/olinuxino-overlays/sun7i-a20/spi2-spidev.dtbo /usr/lib/olinuxino-overlays/sun7i-a20/sun7i-a20-can.dtbo /usr/lib/olinuxino-overlays/sun7i-a20/sun7i-a20-i2c2.dtbo /usr/lib/olinuxino-overlays/sun7i-a20/sun7i-a20-spi1.dtbo /usr/lib/olinuxino-overlays/sun7i-a20/sun7i-a20-spi2.dtbo /usr/lib/olinuxino-overlays/sun7i-a20/sun7i-a20-uart3.dtbo /usr/lib/olinuxino-overlays/sun7i-a20/sun7i-a20-uart4.dtbo /usr/lib/olinuxino-overlays/sun7i-a20/sun7i-a20-uart7.dtbo
The overlay does not include micro-i2c2-ar1021, so the script uses the second section....
Quote from: alex_u-94 on July 01, 2022, 01:48:58 PMA few problems...
Firstly, I've already done this and it doesn't work at all because the olimex script to generate "98-screen-calibration.conf" uses the section I edited. If you check my post, I have inserted the contents from the source file "98-screen-calibration.conf", which was generated using an unmodified script. You can also check in the script that different sections for a 7-inch LCD display have different values.
The second problem is "98-screen-calibration.conf", which was generated using a modified script, contains the values that I inserted there....
Modified script
$ cat /usr/lib/olinuxino/olinuxino-ts
#!/bin/bash
# Check is LCD is enabled in the device tree
LCD=$(grep -r "lcd-olinuxino-[147]" /proc/device-tree -a -h | tr -d '\0')
[[ -z $LCD ]] && exit 0
overlays=$(cat /boot/uEnv.txt)
# Select transformation matrix
if [[ $overlays == *"micro-i2c2-ar1021"* ]];
then
case $LCD in
"olimex,lcd-olinuxino-4.3")
MATRIX="1.09 0.0 -0.04 0.0 1.17 -0.09 0.0 0.0 1.0"
;;
"olimex,lcd-olinuxino-7")
MATRIX="1.05 0.0 -0.03 0.0 1.13 -0.08 0.0 0.0 1.0"
;;
"olimex,lcd-olinuxino-10")
MATRIX="1.04 0.0 -0.03 0.0 1.09 -0.07 0.0 0.0 1.0"
;;
*)
# The LCD is not supported by this script
exit 0;
esac
PRODUCT="ar1021 I2C Touchscreen"
else
case $LCD in
"olimex,lcd-olinuxino-4.3")
MATRIX="1.08 0.0 -0.04 0.0 1.14 -0.10 0.0 0.0 1.0"
;;
"olimex,lcd-olinuxino-7")
MATRIX="1.04 0.0 -0.02 0.0 1.12 -0.08 0.0 0.0 1.0"
;;
"olimex,lcd-olinuxino-10")
MATRIX="1.04 0.0 -0.03 0.0 1.09 -0.07 0.0 0.0 1.0"
;;
*)
# The LCD is not supported by this script
exit 0;
esac
PRODUCT="1c25000.rtp"
fi
# Generate configuration file
mkdir -p /etc/X11/xorg.conf.d
tee > /etc/X11/xorg.conf.d/98-screen-calibration.conf << __EOF__
Section "InputClass"
Identifier "calibration"
MatchProduct "$PRODUCT"
Option "TransformationMatrix" "$MATRIX"
EndSection
__EOF__
# педалщина
LCD=$(grep -r "lcd-olinuxino-[147]" /proc/device-tree -a -h | tr -d '\0')
[[ -z $LCD ]] && exit 0
overlays=$(cat /boot/uEnv.txt)
# Select transformation matrix
if [[ $overlays == *"-gt911inv"* ]];
then
/usr/bin/memtool mw -l 0x1C0C010 0x80000000 || :
/usr/bin/memtool mw -l 0x1C0C044 0xF0000006 || :
fi
Generated "98-screen-calibration.conf"
$ cat /etc/X11/xorg.conf.d/98-screen-calibration.conf
Section "InputClass"
Identifier "calibration"
MatchProduct "1c25000.rtp"
Option "TransformationMatrix" "1.04 0.0 -0.02 0.0 1.12 -0.08 0.0 0.0 1.0"
EndSection
If you compare the script and the configuration file, you will find that the transformation matrix is the same.
Do I understand correctly that {MatchProduct "1c25000.rtp"} section should have a different value in the configuration file (98-screen-calibration.conf)?
Checks from the script
Display:
$ grep -r "lcd-olinuxino-[147]" /proc/device-tree -a -h | tr -d '\0'
olimex,lcd-olinuxino-7
Touch:
$ cat /boot/uEnv.txt
#
# Auto-generated on: 2022-04-13 10:12:41.610325
# Generated UUID: 30010994-cd0e-4557-be6d-fb22555be453
#
# Put u-boot environment variables here. Before boot, boot.scr will use these variables:
#
# boot_config - Explicitly specify the boot configuration
# fdtoverlays - List of overlay files
# load_legacy - Don't load FIT image,
# optargs - Optional arguments passed to the kernel
fdtoverlays=/usr/lib/olinuxino-overlays/sun7i-a20/som204-lcd-olinuxino-7.dtbo /usr/lib/olinuxino-overlays/sun7i-a20/som-i2c2-ar1021.dtbo /usr/lib/olinuxino-overlays/sun7i-a20/spi1-spidev.dtbo /usr/lib/olinuxino-overlays/sun7i-a20/spi2-spidev.dtbo /usr/lib/olinuxino-overlays/sun7i-a20/sun7i-a20-can.dtbo /usr/lib/olinuxino-overlays/sun7i-a20/sun7i-a20-i2c2.dtbo /usr/lib/olinuxino-overlays/sun7i-a20/sun7i-a20-spi1.dtbo /usr/lib/olinuxino-overlays/sun7i-a20/sun7i-a20-spi2.dtbo /usr/lib/olinuxino-overlays/sun7i-a20/sun7i-a20-uart3.dtbo /usr/lib/olinuxino-overlays/sun7i-a20/sun7i-a20-uart4.dtbo /usr/lib/olinuxino-overlays/sun7i-a20/sun7i-a20-uart7.dtbo
The overlay does not include micro-i2c2-ar1021, so the script uses the second section....
Can you, please attach screenshot of
olinuxino-overlay command.
Umm, something is very wrong at start. I feel you should first run olinuxino-display script and select:
LCD-OLinuXino-7RTS 800x480 panel with resistive TS and I2C interface
Then reboot the board.
I tested same setup and we got the following:
root@a20-olinuxino:~# nano /etc/X11/xorg.conf.d/98-screen-calibration.conf .
Section "InputClass"
Identifier "calibration"
MatchProduct "ar1021 I2C Touchscreen"
Option "TransformationMatrix" "1.05 0.0 -0.03 0.0 1.13 -0.08 0.0 0.0 1.0"
EndSection
If you compare you'd see you get different touchscreen driver so everything after that point might be wrong.
Quote from: kalata23 on July 01, 2022, 03:17:13 PMCan you, please attach screenshot of
Code Select Expand
olinuxino-overlay command.
All options:
(https://i.ibb.co/fNgz9qc/Enable-FDT-overlays1.png)
(https://i.ibb.co/2t8p600/Enable-FDT-overlays2.png)
(https://i.ibb.co/r44htXZ/Enable-FDT-overlays3.png)
(https://i.ibb.co/87L8bSC/Enable-FDT-overlays4.png)
Can you please, try LubOlimex's advice, to select your LCD with olinuxino-display command and then reboot the board. After that please give us the output of:
cat /etc/X11/xorg.conf.d/98-screen-calibration.conf
For some reason in your 98-screen-calibration.conf the MatchProduct field has 1c25000.rtp value, but it should be ar1021 I2C Touchscreen
Quote from: LubOlimex on July 01, 2022, 03:36:02 PMUmm, something is very wrong at start. I feel you should first run olinuxino-display script and select:
LCD-OLinuXino-7RTS 800x480 panel with resistive TS and I2C interface
Then reboot the board.
I tested same setup and we got the following:
root@a20-olinuxino:~# nano /etc/X11/xorg.conf.d/98-screen-calibration.conf .
Section "InputClass"
Identifier "calibration"
MatchProduct "ar1021 I2C Touchscreen"
Option "TransformationMatrix" "1.05 0.0 -0.03 0.0 1.13 -0.08 0.0 0.0 1.0"
EndSection
If you compare you'd see you get different touchscreen driver so everything after that point might be wrong.
To my great regret, I also did this earlier with the same result
(https://i.ibb.co/6s2CTxL/photo-2022-07-01-15-58-14.jpg)
(https://i.ibb.co/7gqYCVz/photo-2022-07-01-15-58-30.jpg)
I changed the script and hardcoded the device type. Now the generated configuration works correctly... It not a right way, but I do not know why micro-i2c2-ar1021 is missing from my ftdoverlays list
Hi, again. I have tested the same LCD with the same board, and found that the issue is related to olinuxino-ts script. I have fixed it, so in future releases of olimage this problem must be solved.
Here is the solution to your problem.
1. Open /usr/lib/olinuxino/olinuxino-ts file with some editor and change the line
# Select transformation matrix
if [[ $overlays == *"micro-i2c2-ar1021"* ]];to
# Select transformation matrix
if [[ $overlays == *"i2c2-ar1021"* ]];After that you can change the calibration values in the same section:
Quote from: undefinedif [[ $overlays == *"i2c2-ar1021"* ]];
then
case $LCD in
"olimex,lcd-olinuxino-4.3")
MATRIX="1.09 0.0 -0.04 0.0 1.17 -0.09 0.0 0.0 1.0"
;;
"olimex,lcd-olinuxino-7")
MATRIX="1.05 0.0 -0.03 0.0 1.13 -0.08 0.0 0.0 1.0"
;;
"olimex,lcd-olinuxino-10")
MATRIX="1.04 0.0 -0.03 0.0 1.09 -0.07 0.0 0.0 1.0"
;;
*)
# The LCD is not supported by this script
exit 0;
esac
PRODUCT="ar1021 I2C Touchscreen"
Don't forget to reboot your LCD after changing calibration values, to take effect.
Thanks a lot!!!!
Hi all,
regarding the calibration topic we were having quite a few issue.
We need to provide our customers with many LCD-OLinuXino-10ts so it's impractical (read impossible) to generate a different /usr/lib/olinuxino/olinuxino-ts script for each of them.
The olinuxino-ts script is conceptually wrong; something forced this way in place of a having a proper conf file can't work for every system, please people at Olimex, revise it or delete it.
Nonetheless using a manual generated configuration can't work when then calibration need to be done by a no-skilled user.
The original issue seems related to broken old xinput_calibrator vs new libinput, this as least with Deb11 Bullseye (same issue didn't happened with Debian8 based images).
First I would suggest to remove/rename/modify olinuxino-ts so that is not executed at startup. (suggests for Olimex people, just put a condition to make the conf file only if it isn't already present, that would work much better).
Second, some program/procedure/script need to be run, and result stored in the proper conf file/folder.
One of the following procedure can be put in place:
- use the manual procedure showed in this thread but put the result value in /etc/X11/xorg.conf.d/98-calibration.conf
(tested, working)
- use a wrapper script, which use Debian provided old xinput_calibrator but with the newer "TransformationMatrix", available here:
https://wiki.archlinux.org/title/Talk:Calibrating_Touchscreen#Wrapper_around_xinput_calibrator
(tested, working, modified to write directly to conf file)
- use a newer version of xinput_calibrator which should take in account the newer libinput, (Deb11 and Deb12 are currently at v0.7.5 vs v0.10 on github), source available here:
https://github.com/kreijack/xlibinput_calibrator
(not tested)
- use an alternative calibration program, which can deal with the newer libinput, for example the fowllowing in python/tk:
https://github.com/reinderien/xcalibrate
(tested, working, modified to write directly to conf file)
Cheers,
Adamo
Hi! i am facing the same problem with LCD-OLinuXino-10TS. i am using it with A10-OLinuXino-LIME. i have a huge deviation around all the four corners. and seems to work a little in the middle section of the touchscreen.
This is my olinuxino-ts file (/usr/lib/olinuxino/olinuxino-ts)
"""
#!/bin/bash
# Check is LCD is enabled in the device tree
LCD=$(grep -r "lcd-olinuxino-[147]" /proc/device-tree -a -h | tr -d '\0')
[[ -z $LCD ]] && exit 0
overlays=$(cat /boot/uEnv.txt)
# Select transformation matrix
if [[ $overlays == *"i2c2-ar1021"* ]];
then
case $LCD in
"olimex,lcd-olinuxino-4.3")
MATRIX="1.09 0.0 -0.04 0.0 1.17 -0.09 0.0 0.0 1.0"
;;
"olimex,lcd-olinuxino-7")
MATRIX="1.05 0.0 -0.03 0.0 1.13 -0.08 0.0 0.0 1.0"
;;
"olimex,lcd-olinuxino-10")
MATRIX="1.04 0.0 -0.03 0.0 1.09 -0.07 0.0 0.0 1.0"
;;
*)
# The LCD is not supported by this script
exit 0;
esac
PRODUCT="ar1021 I2C Touchscreen"
else
case $LCD in
"olimex,lcd-olinuxino-4.3")
MATRIX="1.08 0.0 -0.04 0.0 1.14 -0.10 0.0 0.0 1.0"
;;
"olimex,lcd-olinuxino-7")
MATRIX="1.06 0.0 -0.03 0.0 1.11 -0.08 0.0 0.0 1.0"
;;
"olimex,lcd-olinuxino-10")
MATRIX="1.04 0.0 -0.03 0.0 1.09 -0.07 0.0 0.0 1.0"
;;
*)
# The LCD is not supported by this script
exit 0;
esac
PRODUCT="1c25000.rtp"
fi
# Generate configuration file
mkdir -p /etc/X11/xorg.conf.d
tee > /etc/X11/xorg.conf.d/98-screen-calibration.conf << __EOF__
Section "InputClass"
Identifier "calibration"
MatchProduct "$PRODUCT"
Option "TransformationMatrix" "$MATRIX"
EndSection
__EOF__
# педалщина
LCD=$(grep -r "lcd-olinuxino-[147]" /proc/device-tree -a -h | tr -d '\0')
[[ -z $LCD ]] && exit 0
overlays=$(cat /boot/uEnv.txt)
# Select transformation matrix
if [[ $overlays == *"-gt911inv"* ]];
then
/usr/bin/memtool mw -l 0x1C0C010 0x80000000 || :
/usr/bin/memtool mw -l 0x1C0C044 0xF0000006 || :
fi
""""
my 98-screen-calibration.conf file looks like this after reboot (/etc/X11/xorg.conf.d/98-screen-calibration.conf)
"""
Section "InputClass"
Identifier "calibration"
MatchProduct "1c25000.rtp"
Option "TransformationMatrix" "1.04 0.0 -0.03 0.0 1.09 -0.07 0.0 0.0 1.0"
EndSection
"""
I forgot to mention that I use an A10 with an updated buster, because I didn't get an answer on the A10 forum ...