Discussion:
[yocto-rocko] : fsl-community-bsp X11 build touch screen calibration issue on iMX6UL
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Alankar Dhobale
2018-12-03 04:49:26 UTC
Permalink
Hello,



I have been working on Rocko build from fsl-community-bsp, since last few
days and able to complete the builds for our various devices which uses
imx6UL and imx6Solo processors.



During testing these builds, I have encountered few issues and also could
able to solve some of them.



I need your help in one of issue where I am still unable to get the
resolution. Please see details as below



Machine: imx6ulevek

Image: core-image-x11



The issue I have observed on the device is, Xorg is unable to calibrate the
touchscreen, I don't know what has changed but it is unable to calibrate,
below is the log I get on prompt





Using calibration data stored in /etc/pointercal.xinput

Invalid format 42060

unable to find device EETI eGalax Touch Screen

INFO: width=480, height=272

random: nonblocking pool is initialized

ERROR: XorgPrint Calibrator does not support the supplied --output-type

Error: unable to apply or save configuration valuesUsing calibration data
stored in /etc/pointercal.xinput

Size 1024x768 not found in available modes

Invalid format 42060

unable to find device EETI eGalax Touch Screen

matchbox: Cant find a keycode for keysym 269025056

matchbox: ignoring key shortcut XF86Calendar=!$contacts



matchbox: Cant find a keycode for keysym 2809

matchbox: ignoring key shortcut telephone=!$dates



matchbox: Cant find a keycode for keysym 269025050

matchbox: ignoring key shortcut XF86Start=!matchbox-remote -desktop



INFO: width=480, height=272

ERROR: XorgPrint Calibrator does not support the supplied --output-type

Error: unable to apply or save configuration values



Actually I have seen this issue first on our machine conf file and build
recipe, but just to confirm I have built imx6ulevk machine and see the same
issue.



I am not using eGalax EETI Touch screen, it should use iMX6UL's internal
touchscreen controller, i am using simple resistive touch screen. Basic
touch screen is working, because when during first power up when X tries to
calibrate the touch screen, it is able to detect every touch but when it
tries to write to /etc/pointercal.xinput it says output type is not
supported, and if i look at xinput_calibrator_once.sh in /usr/bin which is
called at first power up the --output-type is defined as xinput which is
correct. So as it is not able to save the calibration points the touch
screen doesn't work in X or in any of QT apps we are building.



I believe this is nothing do to with kernel as i am using 4.1.35 which was
in morty build and where this touch calibrate is working well. i just bumped
the version of all apps/rootfs to rocko so as to get all latest application
versions like QT-5.9.7 etc, so i think there is something changed in X build
and which is broken.



Can somebody please help.



Thanks





Kind Regards,

Alankar Dhobale



Renu Electronics Private Limited / <http://www.renuelectronics.com/>
www.renuelectronics.com /

Offering Quality Products and Services
Alankar Dhobale
2018-12-03 04:51:20 UTC
Permalink
Hello,



I have been working on Rocko build from fsl-community-bsp, since last few
days and able to complete the builds for our various devices which uses
imx6UL and imx6Solo processors.



During testing these builds, I have encountered few issues and also could
able to solve some of them.



I need your help in one of issue where I am still unable to get the
resolution. Please see details as below



Machine: imx6ulevek

Image: core-image-x11



The issue I have observed on the device is, Xorg is unable to calibrate the
touchscreen, I don't know what has changed but it is unable to calibrate,
below is the log I get on prompt





Using calibration data stored in /etc/pointercal.xinput

Invalid format 42060

unable to find device EETI eGalax Touch Screen

INFO: width=480, height=272

random: nonblocking pool is initialized

ERROR: XorgPrint Calibrator does not support the supplied --output-type

Error: unable to apply or save configuration valuesUsing calibration data
stored in /etc/pointercal.xinput

Size 1024x768 not found in available modes

Invalid format 42060

unable to find device EETI eGalax Touch Screen

matchbox: Cant find a keycode for keysym 269025056

matchbox: ignoring key shortcut XF86Calendar=!$contacts



matchbox: Cant find a keycode for keysym 2809

matchbox: ignoring key shortcut telephone=!$dates



matchbox: Cant find a keycode for keysym 269025050

matchbox: ignoring key shortcut XF86Start=!matchbox-remote -desktop



INFO: width=480, height=272

ERROR: XorgPrint Calibrator does not support the supplied --output-type

Error: unable to apply or save configuration values



Actually I have seen this issue first on our machine conf file and build
recipe, but just to confirm I have built imx6ulevk machine and see the same
issue.



I am not using eGalax EETI Touch screen, it should use iMX6UL's internal
touchscreen controller, i am using simple resistive touch screen. Basic
touch screen is working, because when during first power up when X tries to
calibrate the touch screen, it is able to detect every touch but when it
tries to write to /etc/pointercal.xinput it says output type is not
supported, and if i look at xinput_calibrator_once.sh in /usr/bin which is
called at first power up the --output-type is defined as xinput which is
correct. So as it is not able to save the calibration points the touch
screen doesn't work in X or in any of QT apps we are building.



I believe this is nothing do to with kernel as i am using 4.1.35 which was
in morty build and where this touch calibrate is working well. i just bumped
the version of all apps/rootfs to rocko so as to get all latest application
versions like QT-5.9.7 etc, so i think there is something changed in X build
and which is broken.



Can somebody please help.



Thanks





Kind Regards,

Alankar Dhobale
Max Krummenacher
2018-12-03 19:38:06 UTC
Permalink
Hi
Post by Alankar Dhobale
Machine: imx6ulevek
Image: core-image-x11
The issue I have observed on the device is, Xorg is unable to calibrate the
touchscreen, I don't know what has changed but it is unable to calibrate,
below is the log I get on prompt
...
Post by Alankar Dhobale
ERROR: XorgPrint Calibrator does not support the supplied --output-type
Error: unable to apply or save configuration valuesUsing calibration data
stored in /etc/pointercal.xinput
Does not installing xf86-input-libinput help? xinput-calibrator cannot cope with that input backend.

I used the following bbappend to achieve this:

http://git.toradex.com/cgit/meta-toradex-demos.git/commit/?h=rocko-next&id=664a1926af81e49396bfe2681
18969ec2b8718cb

Regards
Max
--
Alankar Dhobale
2018-12-04 13:24:18 UTC
Permalink
Hi Max,



Yes you are right, I used the same bbappend and this resolved the issue, perfect solution




I have been struggling with this since couple of days!



Many thanks for your inputs and resolution.



I have tested the build for imx6ulevk as well as to our own machine, both worked well. Calibration passes correctly and also writes it to /etc/pointercal.xinput file and works perfect



Thanks once again




Regards

Alankar





-----Original Message-----
From: Max Krummenacher [mailto:***@gmail.com]
Sent: 04/12/2018 1:08 AM
To: Alankar Dhobale; ***@yoctoproject.org
Subject: Re: [yocto] [yocto-rocko] : fsl-community-bsp X11 build touch screen calibration issue on iMX6UL



Hi
Post by Alankar Dhobale
Machine: imx6ulevek
Image: core-image-x11
The issue I have observed on the device is, Xorg is unable to
calibrate the touchscreen, I don't know what has changed but it is
unable to calibrate, below is the log I get on prompt
...
Post by Alankar Dhobale
ERROR: XorgPrint Calibrator does not support the supplied
--output-type
Error: unable to apply or save configuration valuesUsing calibration
data stored in /etc/pointercal.xinput
Does not installing xf86-input-libinput help? xinput-calibrator cannot cope with that input backend.



I used the following bbappend to achieve this:



<http://git.toradex.com/cgit/meta-toradex-demos.git/commit/?h=rocko-next&id=664a1926af81e49396bfe2681> http://git.toradex.com/cgit/meta-toradex-demos.git/commit/?h=rocko-next&id=664a1926af81e49396bfe2681

18969ec2b8718cb



Regards

Max

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