Bug 440213

Summary:	gray square handles not work when crop with wacom intuos draw tablet
Product:	[Applications] gwenview	Reporter:	empyreal <empyreal>
Component:	general	Assignee:	Gwenview Bugs <gwenview-bugs-null>
Status:	CONFIRMED ---
Severity:	normal	CC:	gabriel
Priority:	NOR
Version First Reported In:	21.08.2
Target Milestone:	---
Platform:	Kubuntu
OS:	Linux
Latest Commit:		Version Fixed In:
Sentry Crash Report:

Description empyreal 2021-07-23 22:22:17 UTC

SUMMARY
Tried two versions of gwenview: 19.12.3 and 21.04.0. Same problem. When I try dragging gray square handles, they do not change cropped area. Handles stay on image borders and do not move. I can crop images in Advanced Settings by changing numeric values only.

STEPS TO REPRODUCE
gwenview 19.12.3 and gwenview 21.04.0
I use Wacom Intuos Draw small and it won't do this crop function.

OBSERVED RESULT
gwenview 19.12.3 and gwenview 21.04.0
I connected simple optical mouse and this crop function works. With optical mouse I can crop both ways: by dragging handles and by changing numeric values. But with tablet — no way — can't crop by dragging handles.

EXPECTED RESULT
Expect Wacom Intuos Draw to work fully as optical mouse.

SOFTWARE/OS VERSIONS
Operating System: Kubuntu 20.04
KDE Plasma Version: 5.18.5
KDE Frameworks Version: 5.68.0
Qt Version: 5.12.8
Kernel Version: 5.8.0-63-generic
OS Type: 64-bit
Processors: 12 × AMD Ryzen 5 1600 Six-Core Processor
Memory: 15,6 GiB of RAM

ADDITIONAL INFORMATION
Motherboard: X370 GAMING PLUS (MS-7A33)
BIOS: American Megatrends Inc.
Distributor ID: Ubuntu
Description: Ubuntu 20.04.2 LTS
Release: 20.04
Codename: focal

Comment 1 empyreal 2021-07-24 11:02:53 UTC

Similar problem with VirtualBox.
Solution: Exec=bash -c 'QT_XCB_TABLET_LEGACY_COORDINATES=1 VirtualBox %U'
Source: https://forums.virtualbox.org/viewtopic.php?f=7&t=97881

Comment 2 empyreal 2021-07-24 11:15:56 UTC

Only Exec= option was changed in virtualbox.desktop
Exec=QT_XCB_TABLET_LEGACY_COORDINATES=1 VirtualBox %U
in /usr/share/applications/virtualbox.desktop does the trick - I can use Wacom

Only Exec= option was changed in org.kde.gwenview.desktop
Exec=QT_XCB_TABLET_LEGACY_COORDINATES=1 gwenview %U
in /usr/share/applications/org.kde.gwenview.desktop has no effect - I can't change crop area with Wacom

Comment 3 empyreal 2021-07-25 14:24:28 UTC

Same problem with newer Gwenview in Mageia 8 and Manjaro 21.07 releases (contains QT 5.15.2). Can’t change crop area with Wacom Intuos Draw Pen S North White (CTL-490DW-N).

Comment 4 empyreal 2021-07-31 09:52:43 UTC

Also I can't drag picture with Wacom pen when it is scaled. I think the root of this issue is the same, so I add comment instead posting new bug report.

Comment 5 empyreal 2021-08-18 21:55:46 UTC

Same problem with Version 20.12.3 on Kubuntu 21.04.

Comment 6 empyreal 2021-08-26 07:07:14 UTC

Same problem in gwenview-release-21.04 Gwenview Version 21.04.3

Comment 7 empyreal 2021-09-13 16:16:22 UTC

Same on Gwenview Version 21.08.1

Operating System: Kubuntu 21.04
KDE Plasma Version: 5.22.5
KDE Frameworks Version: 5.85.0
Qt Version: 5.15.2
Kernel Version: 5.11.0-34-generic (64-bit)
Graphics Platform: X11

Comment 8 A Linux User 2025-09-04 12:18:41 UTC

Thank you for the bug report. Unfortunately we were not able to get to it yet. Can we ask you to please check if this is still an issue with Gwenview 25.08.0 (the latest released version)?