Hi Poonam,

The issue I mentioned is not fixed in 5.15. Touch improvements made in Qt 6 
can’t be pinned to a single patch.

Sorry for not providing better news.

Cheers
Axel

On 19 Feb 2024, at 12:34, Poonam Sangale <sanglepoonam...@gmail.com> wrote:


Sie erhalten nicht oft eine E-Mail von sanglepoonam...@gmail.com. Erfahren Sie, 
warum dies wichtig ist<https://aka.ms/LearnAboutSenderIdentification>

Hi Axel,

Thank you for your response. Are touch-related issues fixed in the latest Qt 
5.15.16?

Can you share the patch for 5.15.9 to fix touch related issues?

Regards, Poonam

On Mon, Feb 19, 2024 at 4:36 PM Axel Spoerl via Interest 
<interest@qt-project.org<mailto:interest@qt-project.org>> wrote:
Hi,

5.15.9 is quite outdated (current is 5.15.16).
A number of known touch-related issues have been fixed with 
https://codereview.qt-project.org/c/qt/qtbase/+/516578, included in 6.7.
Touch handling has been seen major improvements in Qt 6.
If the issue persists with a more recent Qt Version (I'd recommend 6.5), please 
file a bug report with a precise description and a minimal, compilable 
reproducer.

Regards,
Axel

________________________________
Von: Interest 
<interest-boun...@qt-project.org<mailto:interest-boun...@qt-project.org>> im 
Auftrag von Poonam Sangale 
<sanglepoonam...@gmail.com<mailto:sanglepoonam...@gmail.com>>
Gesendet: Montag, 19. Februar 2024 11:12
An: interest@qt-project.org<mailto:interest@qt-project.org> 
<interest@qt-project.org<mailto:interest@qt-project.org>>
Betreff: [Interest] Touch frozen in Qt 5.15.9

Hi,


We are using Qt 5.15.9 commercial license with Yocto Dunfell configuration 
using evdev touch plugin on IMX6 based device.
Here are the exported environment variables being used:
export QT_QPA_EVDEV_TOUCHSCREEN_PARAMETERS=/dev/input/event0
export QT_QPA_PLATFORM = eglfs



However, touch/UI freeze issues are being seen intermittently.



Any recommendations on the environment variables if required to use export 
QT_QPA_EVDEV_TOUCHSCREEN_INPUT=/dev/input/event0 instead or any known issues in 
Qt 5.15.9?


Regards,

Poonam

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